
If you're looking to quickly set up candles with less than one minute intervals in Thinkorswim, the process is straightforward but requires a specific approach. Thinkorswim, by default, does not natively support sub-minute charts, but you can achieve this by using the Range chart type instead of the traditional time-based charts. To do this, go to the Chart tab, select Chart Settings, and change the chart type to Range. Set the range to the desired number of ticks or price movements, which effectively mimics a sub-minute candle. For example, setting a range of 100 ticks will create a new candle every time 100 trades occur, allowing you to analyze price action in intervals much shorter than one minute. This method is particularly useful for day traders and scalpers who need to monitor rapid price movements in real time.
| Characteristics | Values |
|---|---|
| Platform | Thinkorswim (TOS) by TD Ameritrade |
| Minimum Candle Interval | 1 minute (default) |
| Workaround for Sub-Minute Candles | Use "Range Bars" or "Volume Bars" for dynamic time intervals |
| Range Bars | Candles based on price movement (e.g., $0.01, $0.05) |
| Volume Bars | Candles based on traded volume (e.g., 1000 shares, 5000 contracts) |
| Tick Charts | Not natively supported in TOS; requires third-party tools or scripts |
| Custom Scripting | Use ThinkScript to create custom indicators or studies |
| Data Feed Limitation | Sub-minute data not natively available; relies on workarounds |
| Alternative Platforms | NinjaTrader, TradingView, or MetaTrader for native sub-minute candles |
| Updated As Of | June 2024 |
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What You'll Learn
- Pre-built Scans: Use Thinkorswim’s pre-built scans to quickly find candles under one minute
- Custom Watchlist: Create a watchlist with filters for sub-minute candles
- Chart Settings: Adjust chart intervals to display candles in less than one minute
- Hotkeys Setup: Assign hotkeys for instant access to sub-minute candle charts
- Scripting Tools: Use Thinkscript to automate detection of sub-minute candles

Pre-built Scans: Use Thinkorswim’s pre-built scans to quickly find candles under one minute
Thinkorswim's pre-built scans are a treasure trove for traders seeking specific market conditions, including candles under one minute. These scans, designed by experts, streamline the process of identifying short-duration candles, saving you from manually sifting through charts. By leveraging these tools, you can focus on analyzing opportunities rather than searching for them.
To access these scans, navigate to the "Scan" tab in Thinkorswim and explore the "Pre-defined Scans" section. Look for categories like "Candle Patterns" or "Time-Based Scans," where you’re likely to find options tailored to sub-minute candles. For instance, scans like "1-Minute Reversal Candles" or "30-Second Momentum Patterns" can directly pinpoint the candles you’re after. Customizing these scans further allows you to refine results based on volume, price range, or specific indicators.
One standout feature is the ability to combine pre-built scans with Thinkorswim’s proprietary scripting language, ThinkScript. This lets you tweak existing scans to filter for candles under one minute with precision. For example, adding a condition like `if close > open and timeframe <= 60 seconds` can narrow down results to bullish candles within your desired timeframe. This blend of pre-built efficiency and customization ensures you’re not just finding candles, but the *right* candles.
However, reliance on pre-built scans alone can limit your understanding of market dynamics. Treat them as a starting point, not a crutch. Pair their insights with manual chart analysis to validate patterns and avoid false signals. Additionally, monitor scan performance over time; market conditions evolve, and what works today may not tomorrow. Regularly updating scan parameters keeps your strategy sharp and relevant.
In conclusion, Thinkorswim’s pre-built scans are a powerful shortcut for identifying candles under one minute, but their true value lies in how you adapt and integrate them into your trading workflow. Use them wisely, and they’ll become an indispensable tool in your arsenal.
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Custom Watchlist: Create a watchlist with filters for sub-minute candles
Thinkorswim's platform is a powerhouse for traders, but accessing sub-minute candles requires a strategic approach. While the platform doesn't natively display candles shorter than one minute, you can leverage its custom watchlist functionality to identify and track instruments exhibiting rapid price movements, effectively mimicking the essence of sub-minute data.
Here's how:
Define Your Criteria: Instead of directly filtering for candle duration, focus on indicators that reflect volatility and rapid price changes. Consider incorporating filters like:
- Average True Range (ATR): A high ATR suggests larger price swings, often indicative of shorter-term volatility. Experiment with ATR values above a certain threshold (e.g., 0.05 for forex pairs) to capture instruments with potentially frequent sub-minute fluctuations.
- Volume Spike Detection: Sudden volume surges can signal significant price movements within a short timeframe. Utilize thinkorswim's volume studies to identify instruments experiencing abnormal volume spikes.
- Price Momentum Indicators: Indicators like RSI or Stochastics in overbought or oversold territories can hint at potential short-term reversals or breakouts, often occurring within sub-minute intervals.
- Build Your Custom Watchlist: Thinkorswim's watchlist builder allows you to combine these filters using logical operators (AND, OR). For instance, create a watchlist that includes instruments with an ATR above 0.05 AND a volume spike exceeding 200% of the average volume.
- Visualize and Analyze: Once your watchlist is populated, utilize thinkorswim's charting tools to analyze the selected instruments. While you won't see sub-minute candles directly, the filtered list will highlight assets prone to rapid price movements, allowing you to focus your attention on potential opportunities for short-term trades.
Important Considerations:
- Data Granularity: Remember, this approach doesn't provide actual sub-minute candles. It identifies instruments likely to exhibit behavior characteristic of shorter timeframes.
- False Positives: High volatility doesn't always translate to profitable trades. Combine your watchlist with other technical and fundamental analysis tools for informed decision-making.
- Platform Limitations: Thinkorswim's data feed may not capture every tick, potentially leading to missed opportunities. Consider exploring alternative platforms offering higher-frequency data if sub-minute precision is crucial.
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Chart Settings: Adjust chart intervals to display candles in less than one minute
Thinkorswim's charting capabilities are robust, but accessing sub-minute candles requires a dive into its settings. The platform defaults to standard intervals like 1-minute, 5-minute, or daily candles, which can obscure intraday price action for short-term traders. To reveal the granularity needed for scalping or high-frequency strategies, you must manually adjust the chart interval settings. This process involves navigating to the "Chart Settings" menu, where you can customize the time frame to display candles as short as 5 seconds or 10 seconds, depending on the data available for the selected instrument.
The key to unlocking sub-minute candles lies in understanding the relationship between data availability and chart intervals. Not all instruments support tick-by-tick data, and even when they do, thinkorswim may limit the granularity to prevent performance issues. For instance, highly liquid assets like major forex pairs or popular indices often allow for shorter intervals, while less liquid stocks or ETFs may only support 1-minute candles. To maximize your chances of accessing sub-minute data, ensure you’re trading during active market hours and select instruments with high trading volumes.
Adjusting chart intervals is straightforward but requires precision. Begin by right-clicking on the chart and selecting "Chart Settings." Under the "Interval" tab, choose "Custom" and input the desired time frame, such as 15 seconds or 30 seconds. Be cautious, as intervals shorter than 10 seconds may strain the platform’s performance, especially on older hardware. After applying the settings, the chart will re-render to display the new candle intervals, providing a more detailed view of price movements.
While sub-minute candles offer a closer look at market dynamics, they come with trade-offs. The increased granularity can lead to noise, making it harder to identify meaningful trends or patterns. Traders should complement this view with volume indicators or order flow tools to filter out irrelevant price fluctuations. Additionally, be mindful of data limitations; some brokers may restrict access to tick data or impose fees for high-frequency charting. Always balance the need for detail with the practicality of execution and platform stability.
In conclusion, adjusting chart intervals in thinkorswim to display sub-minute candles is a powerful tool for intraday traders seeking precision. By customizing the interval settings and selecting appropriate instruments, you can gain a more nuanced understanding of short-term price action. However, this approach demands careful consideration of data availability, platform performance, and the potential for increased market noise. Used judiciously, sub-minute candles can enhance your trading strategy, but they should be one component of a broader analytical toolkit.
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Hotkeys Setup: Assign hotkeys for instant access to sub-minute candle charts
Efficiency in trading often hinges on speed and precision, especially when navigating sub-minute candle charts in Thinkorswim. Assigning hotkeys for instant access to these charts can shave precious seconds off your workflow, allowing you to react swiftly to market movements. Thinkorswim’s customizable interface supports this by letting you map specific keyboard shortcuts to chart intervals like 1-second, 5-second, or 30-second candles. This setup ensures you’re not fumbling through menus when every millisecond counts.
To begin, open Thinkorswim and navigate to the Settings menu. Under Hotkeys, you’ll find a list of available shortcuts. Identify an unused key combination—Ctrl + Alt + 1, for instance—and assign it to your desired chart interval. For sub-minute candles, you’ll need to first ensure the interval is available in your chart settings. Right-click on the chart, select Interval, and choose the sub-minute option you want. Once set, return to the hotkey menu and link your chosen shortcut to this specific chart configuration. Test the hotkey by pressing it while on a different chart; it should instantly switch to your pre-configured sub-minute view.
A common pitfall traders encounter is overloading hotkeys, leading to confusion or accidental triggers. To avoid this, limit sub-minute chart hotkeys to 2–3 essential intervals and use intuitive combinations. For example, Ctrl + Alt + 1 for 1-second candles, Ctrl + Alt + 2 for 5-second candles, and so on. Label these shortcuts in a nearby notepad or trading journal for quick reference until muscle memory takes over. Additionally, ensure your hotkeys don’t conflict with default Thinkorswim shortcuts, as this can disrupt other functionalities.
The true value of this setup lies in its ability to streamline your decision-making process. During volatile market conditions, sub-minute charts provide granular insights into price action, but manually switching intervals can delay your response. Hotkeys eliminate this lag, enabling you to monitor tick-by-tick movements without distraction. For scalpers or day traders, this could mean the difference between capturing a fleeting opportunity and missing it entirely. Pair this setup with a second monitor displaying longer-term charts for context, and you’ve got a powerful trading cockpit.
Finally, practice is key to mastering hotkey efficiency. Dedicate time to simulate trading scenarios using your new shortcuts, gradually increasing speed as you become more comfortable. Over time, accessing sub-minute candles will feel second nature, freeing up cognitive bandwidth for analysis and strategy. Remember, the goal isn’t just to go faster—it’s to trade smarter, with tools that enhance your focus and execution.
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Scripting Tools: Use Thinkscript to automate detection of sub-minute candles
Thinkorswim's native charting tools are fantastic for standard timeframes, but traders often crave the granularity of sub-minute candles. This is where Thinkscript, the platform's proprietary scripting language, becomes your secret weapon. By leveraging Thinkscript, you can automate the detection and display of candles with durations less than one minute, unlocking a new level of market insight.
Imagine tracking price action in 15-second intervals during a volatile news release or identifying micro-trends within a 30-second timeframe. Thinkscript allows you to customize your charts to match your trading style and strategy with unparalleled precision.
Crafting Your Sub-Minute Candle Script: A Step-by-Step Guide
- Understanding the Basics: Thinkscript operates on a logic-based system. You'll define conditions for identifying the start and end of each sub-minute candle. This involves specifying the desired candle duration (e.g., 15 seconds) and determining how price data should be aggregated within that timeframe (e.g., using tick data or a specific price type like bid, ask, or last).
- Building the Script: Thinkscript provides functions like `GetTickCount()` to track elapsed time and `AddColumn()` to create custom data series. You'll use these tools to calculate when a new candle should begin and append the corresponding price data to your custom series.
- Visualization: Once your script identifies sub-minute candles, you can visualize them using Thinkorswim's charting tools. Customize the appearance of your candles (color, style) for clear differentiation from standard timeframes.
Cautions and Considerations:
- Data Density: Sub-minute charts generate a significant amount of data. Ensure your computer can handle the processing load to avoid performance issues.
- Noise vs. Signal: While sub-minute charts offer granularity, they can also amplify market noise. Use them in conjunction with longer timeframes for context and confirmation.
- Backtesting Limitations: Backtesting sub-minute strategies within Thinkorswim can be challenging due to data availability and processing constraints. Consider external backtesting platforms for more robust analysis.
Thinkscript empowers traders to transcend the limitations of standard timeframes. By automating the detection of sub-minute candles, you gain a powerful tool for analyzing market microstructure, identifying short-term opportunities, and refining your trading strategies. Remember, responsible use and a comprehensive understanding of market dynamics are crucial for success in this high-frequency trading realm.
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Frequently asked questions
Open a chart, click on the gear icon (Settings) in the top-right corner, select "Chart Settings," and under "Periodicity," choose "1 min" from the dropdown menu.
Thinkorswim does not natively support intervals less than 1 minute. The smallest standard timeframe available is 1 minute.
Yes, you can use Thinkscript to create custom studies or indicators that aggregate tick data to simulate sub-1-minute candles, but real-time sub-1-minute candles are not natively supported.
Go to Charts > Chart Style and select "Tick" from the dropdown menu. Tick charts display price movements based on a specified number of trades, not time intervals.






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