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Thinkorswim
Thinkorswim
from Wikipedia

Thinkorswim
Available inEnglish
TypeElectronic trading platform
Websitetrade.thinkorswim.com

Thinkorswim is an electronic trading platform owned by Charles Schwab Corporation. It is geared for self-directed stock, options and futures traders.[1]

History

[edit]

Thinkorswim, Inc. was founded in 1999 by Tom Sosnoff and Scott Sheridan as an online brokerage specializing in options.[2] It was funded by Technology Crossover Ventures.[3] In February 2007, Investools acquired Thinkorswim.[4]

In January 2009, it was acquired by TD Ameritrade for $225 million of cash and 28 million shares of TD Ameritrade.[5][6][7] The final sale value was $749 million and included 250,000 thinkorswim accounts.[8] At the time, thinkorswim led the industry in the number of retail option trades per day.[5] Lee Barbra was CEO.[5] In 2018, with Thinkorswim, Ameritrade became the first US retail broker-dealer to launch 24/5 trading platforms, which it did for a few exchange-traded funds through the thinkorswim platforms.[9] In early 2018, thinkorswim expanded into Hong Kong.[10]

In October 2020, Charles Schwab Corporation acquired TD Ameritrade and the thinkorswim platform became available for Charles Schwab customers.[1] Charles Schwab integrated Thinkorswim into its platform.[11]

In 2023, Charles Schwab customers were given access to thinkorswim.[1] In 2025, the thinkorswim platform added 24/5 trading on many S&P 500 and Nasdaq-100 stocks, after testing the feature as a pilot in November 2024.[12]

References

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from Grokipedia
thinkorswim is a designed for self-directed investors and active traders, offering advanced tools for trading , exchange-traded funds (ETFs), options, futures, and forex. Originally developed as a specialized options trading software, it provides real-time , customizable charting with over 400 technical studies, strategy , and simulated trading via its paperMoney feature, enabling users to practice without . The platform is available in three formats—desktop, web, and mobile—each delivering core functionalities like live streaming news, educational resources, and commission-free trading for equities and a flat $0.65 per contract for options, catering to both novice and professional users. Founded in 1999 by and Scott Sheridan in as thinkorswim Group Inc., the company focused on innovative options trading technology for retail investors, growing to become a publicly traded entity (NASDAQ: SWIM) before its acquisition. In January 2009, TD Ameritrade acquired thinkorswim for $606 million in a cash-and-stock deal, integrating its advanced platform to enhance offerings in options and futures trading. Following the 2020 merger of TD Ameritrade with Charles Schwab, thinkorswim became part of Schwab's ecosystem, ensuring its continued development and availability to approximately 28 million brokerage accounts at the time of merger completion (now over 38 million active brokerage accounts as of September 2025) while maintaining its reputation for robust analytics and user-driven innovations.

Overview

Description

Thinkorswim is a designed for active traders, providing access to equities, options, futures, forex, and exchange-traded funds (ETFs) through real-time and execution capabilities. The platform's core purpose is to facilitate sophisticated , of trading strategies, and order execution, empowering both retail and professional traders with tools for informed in dynamic financial environments. It primarily targets experienced individual investors and day traders who require customizable interfaces and advanced functionalities that surpass the limitations of basic brokerage platforms. A key differentiator of Thinkorswim from standard trading platforms lies in its emphasis on advanced , including customizable charting and simulation features like paperMoney for risk-free strategy testing.

Ownership and Availability

Thinkorswim operated as an independent trading software company, thinkorswim Group Inc., until its acquisition by in 2009. The deal, announced on January 8, 2009, valued the company at $606 million, consisting of $225 million in cash and approximately 28 million shares of common stock. The acquisition was completed on June 11, 2009, integrating thinkorswim's advanced options and futures trading platform into 's offerings to enhance its active trader services. Following 's ownership, announced its intent to acquire TD Ameritrade on November 25, 2019, in an all-stock transaction valued at approximately $26 billion. The acquisition was completed on October 6, 2020, after receiving regulatory approvals, creating one of the largest firms with over $6 trillion in client assets. The full integration of operations, including thinkorswim, extended over several years, with the platform's merger into Schwab's ecosystem culminating in the launch of "Schwab Trading Powered by Ameritrade" on October 16, 2023. This unified the thinkorswim suite with Schwab's web and mobile platforms, marking the end of standalone TD Ameritrade access. As of 2025, thinkorswim is fully owned and operated by and is available exclusively to Schwab clients through the thinkorswim platform suite, branded under "Trading at Schwab is powered by Ameritrade." There is no separate standalone version outside of Schwab's ecosystem. Access to the platform is free for all Charles Schwab brokerage account holders, requiring only a standard login via Schwab.com or the mobile app to download and use the desktop, web, or mobile versions. Live trading necessitates a funded brokerage account to execute real transactions, while the paperMoney simulator allows risk-free practice trading with virtual funds accessible immediately upon platform login, without any funding requirement.

History

Founding and Early Development

Thinkorswim was founded in 1999 by and Scott Sheridan in Chicago, , as a software-focused brokerage firm specializing in options trading. Sosnoff and Sheridan, both veteran traders at the Chicago Board Options Exchange (CBOE) since 1988, invested their personal savings to create the company, drawing on their extensive floor trading experience to address limitations in existing retail trading tools. The early development of Thinkorswim centered on building innovative software for options pricing, risk analysis, and strategy construction, aiming to empower individual traders with professional-grade capabilities previously reserved for institutional users. Inspired by the shift toward in the late , the founders prioritized processing and intuitive interfaces to simplify complex options trades, setting the platform apart in a market dominated by basic brokerage services. The initial desktop platform launched in 1999, featuring customizable dashboards and advanced analytical tools that quickly attracted tech-savvy options traders seeking efficiency and depth. During its growth phase through the mid-2000s, Thinkorswim cultivated a dedicated niche among active options traders, with monthly new account additions reaching 6,000 by 2007 and revenues doubling quarterly to $32 million. The company gradually expanded beyond options to include , futures, futures options, and forex, broadening its appeal while maintaining its core emphasis on sophisticated, user-driven trading environments.

Acquisition by TD Ameritrade

On January 8, 2009, Holding Corp. announced its agreement to acquire thinkorswim Group Inc. for approximately $606 million, consisting of $225 million in cash and approximately 28 million shares of common stock. The deal valued thinkorswim shares at about $8.71 each, representing a 54% premium over the prior closing price, and was expected to close within six months, subject to regulatory approvals and shareholder consent. The acquisition was completed on June 11, 2009, after thinkorswim stockholders approved the merger on June 9. The primary motivations for the acquisition stemmed from TD Ameritrade's strategy to strengthen its offerings for active traders by incorporating thinkorswim's advanced technology platform, which specialized in options, futures, and forex trading. Thinkorswim's customizable tools and educational resources complemented TD Ameritrade's existing brokerage services, enabling the combined entity to capture a larger share of the growing active trader segment and challenge competitors like Charles Schwab in options trading. At the time, thinkorswim contributed around 87,000 funded accounts, $3 billion in client assets, and a robust program with over 375,000 graduates, aligning with TD Ameritrade's goal of enhancing client engagement and trading volume. Following the acquisition, thinkorswim was integrated into TD Ameritrade's brokerage ecosystem, with the platform rebranded as thinkorswim by TD Ameritrade to reflect its expanded availability to TD clients. This allowed TD Ameritrade's existing customers immediate access to thinkorswim's advanced features without disrupting thinkorswim's original user base, which continued operations seamlessly in the short term. The integration focused on leveraging thinkorswim's technology to boost TD Ameritrade's daily options trades to about 73,000 on a pro-forma basis, while the deal was projected to generate $55 million in annual revenue and cost savings, primarily through retiring thinkorswim's clearing contract. Strategically, it solidified TD Ameritrade's market position in options trading, with no major layoffs or immediate platform overhauls reported, though minor technical hiccups affected some users shortly after closure. The acquisition had minimal impact on TD Ameritrade's fiscal 2009 earnings and began contributing to profit growth in 2010.

Integration with Charles Schwab

In November 2019, The Charles Schwab Corporation announced its $26 billion all-stock acquisition of TD Ameritrade Holding Corporation, a deal that closed on October 6, 2020, after receiving all necessary regulatory approvals from bodies including the U.S. Securities and Exchange Commission and the Financial Industry Regulatory Authority. The merger was driven by anticipated synergies between the firms' complementary client bases—Schwab's focus on long-term investors and TD Ameritrade's emphasis on active traders—and their respective technologies, aiming to create a unified brokerage with approximately $6 trillion in client assets and 28 million accounts. The integration process unfolded over several years, with account migrations occurring in phases to minimize disruptions; by late 2023, most regulatory and operational hurdles had been cleared, and the final wave of approximately 1.8 million TD Ameritrade accounts—part of the original 11 million brokerage accounts—was transferred to Schwab's systems during the weekend of May 3-5, 2024, marking the completion of the merger. This timeline allowed Schwab to progressively consolidate operations, with TD Ameritrade's broker-dealer entities ceasing independent functionality by May 2024. For Thinkorswim, the advanced trading platform originally acquired by in 2009, the merger resulted in its rebranding and deeper incorporation into Schwab's ecosystem as "Schwab Trading Powered by Ameritrade," launched in October 2023 to blend Thinkorswim's capabilities with Schwab's web and mobile interfaces. Full access to Thinkorswim was extended to all Schwab clients starting October 16, 2023, enabling seamless use across Schwab's 35 million active brokerage accounts without requiring separate logins. Core Thinkorswim features, such as advanced charting and options analysis, were preserved, while integration added Schwab's proprietary research tools, including market commentary and feeds, enhancing the platform's utility for retail traders. The migration process presented challenges, including intermittent outages on Thinkorswim and TD Ameritrade's platforms in April 2023, as well as client-reported issues with mobile apps, delayed quotes, and extended wait times at during peak transition periods in 2023 and 2024. Despite these temporary disruptions, the integration succeeded in creating a unified platform offering that scaled Thinkorswim's reach to Schwab's broader client base, maintaining its core functionality while leveraging combined resources for improved reliability and features. In 2025, Schwab further enhanced thinkorswim by expanding 24-hour trading (24/5) to all retail clients, allowing trading of over 1,100 securities including , , and Dow 30 stocks, plus more than 600 ETFs, following a pilot program in late 2024.

Platforms

Desktop Platform

The thinkorswim desktop platform, launched as the flagship offering in the early 2000s following the company's founding in 1999 by and Scott Sheridan, serves as a Windows-based downloadable application designed for advanced traders. It supports multi-monitor configurations through its detached windows manager, enabling users to extend interfaces across multiple displays for enhanced visibility during complex trading setups. This platform emphasizes robust performance for power users, distinguishing it from lighter web and mobile versions by providing deeper customization and processing capabilities. The interface features highly customizable workspaces, with six pre-configured options such as Default, Futures, and Options, each tailored to specific trading focuses and accessible via the Setup menu. Core components include dedicated tabs for (encompassing All Products, Active Trader, and others), Analyze, Scan, and Monitor, allowing seamless navigation between trading execution, market scanning, position tracking, and performance analysis. The Scan tab includes tools like Option Hacker for creating custom scanners to detect unusual options activity, such as high volume relative to open interest, large block trades, or unusual volume spikes. Trade Flash provides real-time alerts on significant trades, serving as a basic form of options flow monitoring. Drag-and-drop functionality facilitates rearranging charts, watchlists, and order entry tools, promoting an intuitive layout that adapts to individual workflows. For day trading execution, users access the Trade tab and select All Products to enter a symbol. For enhanced speed, the Active Trader sub-tab provides a customizable interface with a bid/ask ladder for one-click orders; traders can configure Buy/Sell Market buttons, one-cancels-other (OCO) orders, and share size presets such as 500 to 5000 shares. From a chart, right-clicking on a candle enables placement of custom buy or sell orders specifying limit or market type, quantity, and routing options like SMART. Trade management occurs in the Monitor tab, where the Active Trader ladder facilitates exits or partial fills. Optional hotkeys for actions including buy, sell, and flatten positions can be assigned through Setup > Application Settings. Position sizing in day trading typically involves risking 0.25-1% of account capital, with entries on breakouts and trailing stops using exponential moving averages (EMAs). Primary use cases center on high-volume trading sessions, where the platform delivers real-time streaming quotes across , options, futures, and forex, alongside advanced order routing options like market-on-close (MOC) executions tied to official exchange closes. It supports historical data playback through the OnDemand feature, enabling users to replay past market sessions for strategy testing and review, simulating live conditions with tick-by-tick accuracy up to several years back. These capabilities make it ideal for active traders managing multiple assets in fast-paced environments. System requirements include or later, with macOS support via macOS 14 or later; a minimum of 8 GB RAM is recommended for smooth operation, particularly with multiple charts and data streams. The application is obtained through a direct from the official site, requiring no additional software installations beyond the built-in Java runtime.

Web and Mobile Platforms

The thinkorswim web platform, launched in June 2020 by , offers browser-based access to essential trading and charting tools without requiring any software downloads. Users can access it through the dedicated interface at trade.thinkorswim.com. The interface features a left sidebar for navigation, including access to watchlists. Watchlists appear in the sidebar or under the Monitor section, allowing users to create, edit, and monitor custom lists of symbols, with options to add quotes, charts, alerts, and customize columns. This enables core functionalities such as order placement, market monitoring, customizable charts, and basic directly from compatible web browsers on desktops or laptops. These are current features as described in official resources; for the most up-to-date information, users should refer to the platform's built-in help or official learning center. This no-install approach enhances accessibility for users seeking quick entry into trading without the setup demands of heavier applications. Complementing the web version, thinkorswim mobile apps for and Android provide portable trading experiences tailored for smartphones and tablets. The app was first released on March 25, 2009, while the Android version debuted around 2011, both featuring touch-optimized interfaces for streamlined order entry, customizable alerts for price movements or news events, and access to streaming market news including video integration. These apps support trading in , options, futures, and forex, with synced watchlists and positions across devices for seamless on-the-move management. In comparison to the desktop platform's advanced capabilities, the web and mobile versions feature reduced customization depth—such as limited custom study additions and fewer workspace layouts—and may exhibit slower performance for resource-intensive tasks like complex or multi-chart analysis. However, their streamlined designs prioritize accessibility advantages, making them ideal for monitoring positions, receiving real-time notifications, and executing basic trades during travel or brief sessions. Following the completion of Charles Schwab's acquisition of TD Ameritrade in October 2020, thinkorswim platforms were retained and further integrated into Schwab's ecosystem. In October 2023, Schwab introduced "Schwab Trading Powered by Ameritrade," providing Schwab clients with access to thinkorswim web and mobile platforms, including unified login capabilities for seamless and portfolio synchronization with Schwab brokerage accounts. Full trading and data streaming require an active connection, with offline access restricted to viewing cached elements like saved watchlists.

Features

Trading Tools

Thinkorswim supports a range of standard order types for efficient trade execution, including market orders that seek fulfillment at the next available price, limit orders that execute at a specified price or better, and stop orders that trigger a market order upon reaching a designated activation price. Additional variants such as stop-limit orders, which activate a limit order after the stop price is hit, and trailing stop orders, which dynamically adjust the stop price based on favorable market movements, provide further control over entry and exit points. For complex options trading, the platform enables multi-leg strategies like spreads, , condors, and iron butterflies through dedicated order builders that allow users to construct and submit these as single transactions. Execution capabilities in Thinkorswim emphasize speed and transparency, particularly for day trading. Users can initiate trades via the Trade tab's All Products interface by entering the desired symbol. For faster execution, the Active Trader sub-tab provides a bid/ask price ladder, customizable Buy/Sell Market buttons or OCO orders, and share size presets ranging from 500 to 5000 shares. From the chart, right-clicking on a candle allows placement of custom buy or sell orders with limit or market pricing, specified quantity, and SMART routing. Positions can be managed in the Monitor tab using the Active Trader ladder for exits or partial fills. Optional hotkeys for actions like buy, sell, or flatten can be assigned via Setup > Application Settings. Additional options include direct to specific exchanges or market makers, bypassing automatic smart when desired for targeted fills. Level II quotes display real-time bid and ask prices from multiple exchanges, aiding in assessment of and before order submission. Time-in-force settings include day orders valid only for the current regular trading session, good-til-canceled (GTC) for extended duration, and extended hours options like EXT for pre-market and after-hours sessions, and EXTO for overnight trading. The pre-market session for US equities and ETFs starts at 7:00 a.m. ET and runs until 9:25 a.m. ET. Many ETFs are eligible for 24/5 trading, including overnight sessions starting from 8:00 p.m. ET the previous day, with extended and overnight trading available from Sunday 8:00 p.m. ET to Friday 8:00 p.m. ET for eligible symbols. Only limit orders are accepted during extended hours, including pre-market, after-hours, and overnight sessions. The paperMoney simulator, available on desktop and mobile platforms, provides a default Net Liquidation Value (NETLIQ) of $100,000 in virtual funds, which can be adjusted to other amounts such as $200,000 by setting the account cash, and replicates live market conditions with access to advanced charting, customizable dashboards, and detailed portfolio analytics, allowing users to practice order placement and execution across all , including options and futures, without . It behaves identically to live trading for order placement and execution, including for placing closing stop orders on futures using the right-click "Create closing order" method from the Position Statement, with no known differences or bugs. Risk management is integrated directly into the trading , with tools like position sizing aids in the order entry interface that calculate share quantities based on account equity and parameters, commonly set to limit exposure to 0.25-1% of account value per trade. These tools support day trading strategies such as entering positions on breakouts and trailing stops using exponential moving averages (EMAs). Probability of profit (POP) metrics, derived from option models, estimate the likelihood of a being profitable at expiration and appear in the profile analyzer for pre-trade evaluation. Margin estimators within order tickets forecast required buying power and potential margin calls for leveraged positions, helping traders avoid overexposure. The platform covers major , including equities and ETFs for trading, options for strategies, futures for commodities and indices, and forex for pairs, all accessible via the All Products interface. The multi-leg order builder facilitates constructing and visualizing complex trades, displaying key such as , , and alongside projected profit/loss scenarios to inform execution decisions.

Analysis and Charting

Thinkorswim provides extensive charting capabilities designed for detailed market visualization and technical analysis. The platform supports over 400 technical studies, ranging from basic indicators like moving averages and support/resistance levels to advanced ones such as candlestick patterns and profile charts. Users can apply these studies to charts across various time frames, including 1-minute intervals up to monthly aggregations, allowing for analysis from intraday scalping to long-term trend evaluation. Drawing tools enhance interactivity, with features like trendlines for identifying support and resistance and eight specialized Fibonacci tools—including retracements, extensions, and time ratios—for projecting potential price reversals and continuations based on Elliott Wave principles. Key analysis tools enable users to simulate and review historical market conditions. The OnDemand feature allows for replaying historical trading sessions going back several years, facilitating manual of strategies by advancing through time at variable speeds while observing price action and indicators in real-time. For strategy evaluation, the Strategy Report tool backtests predefined or custom strategies on historical data, generating reports on hypothetical profit and loss (P&L), win rates, and drawdowns directly overlaid on charts. Options traders benefit from thinkBack, which archives nearly a decade of historical options chain data for reviewing past prices, volumes, and at specific dates, enabling precise simulation of trade outcomes without live . Data visualization tools offer multifaceted views of market dynamics. Heat maps in the tab display sector and index performance through color-coded grids, highlighting relative strength or weakness across watchlists for quick opportunity spotting. Profile studies plot trading activity as horizontal histograms on charts, identifying key levels like the Point of Control (POC)—the price with the highest —and Value Area, which encompasses approximately 70% of activity, to gauge support zones and liquidity. studies, including pairwise and multi-symbol coefficients, help assess relationships between assets, such as beta to an index, aiding in diversification analysis. Complementing these, real-time feeds integrate content from multiple sources like , , and directly into the platform, filtering by symbol for contextual market insights. Options-specific analysis tools focus on and volatility dynamics. Risk Profile charts under the Analyze tab project P&L curves for single or multi-leg strategies, factoring in underlying price movements, time decay, and to visualize points and maximum risk/reward scenarios. Volatility skew charts illustrate disparities in across strike prices, often revealing put-call asymmetries that inform directional biases. The platform also computes rank and percentile relative to the past year's range, helping traders gauge whether current levels are elevated or subdued for premium selling or buying decisions. For options traders, thinkorswim offers advantages such as free access with a Charles Schwab brokerage account and comprehensive options scanning and analysis tools, including the Scan tab for creating custom scanners to detect unusual options activity, such as high volume relative to open interest, large block trades, or unusual volume spikes, as well as Trade Flash for real-time alerts on significant trades, which can function as basic options flow monitoring. However, it requires a US-based brokerage account and presents a steeper learning curve for beginners.

Customization and Scripting

thinkScript is a proprietary built-in programming language within the thinkorswim platform, designed to enable users to develop custom analysis tools such as indicators, studies, alerts, and automated strategies. For example, users can create study alerts based on thinkScript conditions, such as triggering a notification when the closing price falls below 20% or 30% of the 200-day simple moving average, using syntax like close < SimpleMovingAvg("length" = 200) * 0.80 for 20% below or * 0.70 for 30% below; these alerts can be set via the Alerts tab to trigger once or repeatedly, with notifications delivered via email, text, or pop-up. It allows traders to process market and fiscal data, combining technical indicators like moving averages into personalized scripts without requiring external coding environments. The language supports key elements including variables, functions, operators, and reserved words, facilitating the creation of plots for data visualization on charts. Customization options in thinkorswim extend through thinkScript to user-defined layouts, conditional orders, and watchlist columns, where traders can apply custom formulas directly. For instance, conditional orders can incorporate script-based rules for automated execution, while watchlist columns enable real-time calculations of user-defined metrics. Users can access a library of shared scripts through the platform's built-in sharing features, allowing import and export of studies, strategies, and workspaces among traders. Advanced applications of thinkScript include developing scans for identifying specific market patterns via the Stock Hacker tool and backtesting custom strategies using the AddOrder function to simulate trades on historical data. These capabilities support strategy optimization in a simulated environment like paperMoney, helping users refine approaches before live implementation. While thinkScript integrates seamlessly with standard charting tools for enhanced analysis, its focus remains on user-generated automation. Learning resources for thinkScript are embedded in the platform, featuring a dedicated thinkScript Editor for script creation and testing, complete with tutorials and example code to guide users from basic declarations to complex strategies. No external programming knowledge is necessary for basic modifications, as the editor provides , error checking, and pre-loaded samples directly within thinkorswim.

paperMoney

paperMoney is the simulated trading mode of the thinkorswim platform, allowing users to practice trading strategies and test tools using virtual funds without financial risk. The default Net Liquidation Value (NETLIQ) in paperMoney is $100,000. Users can adjust the NETLIQ by setting the account cash to a desired amount (for example, $200,000), assuming no open positions are held, since NETLIQ represents the total account value including cash and the value of any positions. To adjust the account:
  1. Log in to thinkorswim and ensure paperMoney mode is active (select the paperMoney account from the login dropdown or top bar).
  2. Go to the Monitor tab and select Activity and Positions (or the Position Statement sub-tab).
  3. Click the "Adjust Account" button (may appear as a gear icon or similar in the account summary area).
  4. In the Account Adjustments window, select the "Set Account Cash to:" option.
  5. Enter the desired amount, such as "200000".
  6. Click Apply to confirm.
For a fresh start, first select "Reset All Balances and Positions" in the Account Adjustments window, which resets the account to the default $100,000. Custom amounts are supported through manual entry in the "Set Account Cash to:" field, though some older interfaces may display preset options like $200,000.

Reception and Impact

User Base and Adoption

Prior to its acquisition by TD Ameritrade in 2009, thinkorswim had approximately 87,000 funded retail brokerage accounts, with a strong focus on options trading enthusiasts who valued its advanced tools for complex strategies. Following the acquisition, thinkorswim's integration into TD Ameritrade's broader brokerage services significantly expanded its reach, transforming it from a niche platform into a core offering for the firm's active trader segment and contributing to overall client retention among high-volume users. This growth aligned with TD Ameritrade's strategy to enhance trading functionality, leading to increased adoption among retail traders executing frequent options, futures, and forex trades. After Charles Schwab's acquisition of TD Ameritrade in 2020, thinkorswim saw further expansion as part of the platform's integration, with all approximately 12 million client accounts successfully migrated to Schwab by May 2024. The platform's user base is predominantly composed of U.S.-based retail traders, with significant adoption among those aged 30-55 engaged in day trading and active strategies. This demographic reflects the platform's appeal to experienced individuals seeking robust analytical features over basic investing tools.

Awards and Recognition

Thinkorswim has received consistent recognition for its advanced trading capabilities, particularly in options and desktop platforms. In the 2025 StockBrokers.com Annual Awards, Charles Schwab was named the best desktop trading platform, while tastytrade earned the No. 1 ranking for options trading platform; Schwab was also named the best full-service broker overall. Historically, thinkorswim has been lauded for options trading. Barron's rankings have also praised thinkorswim for active traders. In its 2021 review of online brokers, TD Ameritrade's thinkorswim platform received 4.5 out of 5 stars, noted for its intricate and powerful features tailored to sophisticated users. Following the merger, Charles Schwab placed third overall in 2023 rankings as a top contender for diverse investor needs, including active trading. Additionally, recognized Charles Schwab as the Best Investing Platform Overall in its 2024 Money Awards. Expert reviews emphasize thinkorswim's depth for professional traders while noting its challenges for novices. NerdWallet's 2025 analysis describes the platform as a "highest-tier" tool with over 400 technical studies, customizable screeners, and advanced features like "what-if" scenario analysis, making it ideal for pros but requiring significant time to master due to its complexity. Similarly, Investopedia's evaluation of Charles Schwab highlights thinkorswim's superior charting and options tools compared to competitors, though it underscores a steep for beginners transitioning from simpler interfaces. These accolades underscore thinkorswim's role in elevating industry standards for customizable trading environments. As of 2025, Charles Schwab reports over 37 million active brokerage accounts, with thinkorswim continuing to serve as a key platform for active and advanced traders.

References

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