Using thinkorswim® to Spot Sector Strength

The Heat Map feature on thinkorswim® desktop can help traders identify recently outperforming sectors and companies driving that momentum. Learn how to use the Heat Map.
November 14, 2025

Focusing on specific sectors can help traders cut through the noise of the broader market and spot emerging strengths. The Heat Map feature on Schwab's thinkorswim® trading platform can help identify not only which sectors recently outperformed but also the companies that drove that momentum.

Getting started

Heat Map of the S&P 500 in thinkorswim desktop highlighting the energy sector.

Source: thinkorswim® desktop platform for Mac.

  1. From MarketWatch, select Visualize, then Heat Map from the Visualization dropdown.
  2. Under Indices, choose an index. For this example, we've selected S&P 500.
  3. Once the heat map populates, you can see which sectors recently outperformed relative to their peers. Here, Energy is up on a day when the wider market is struggling.

Interpreting the Heat Map

  • Square color: Indicates the stock's daily price change—the brighter the green or red, the greater the positive or negative change, respectively. (No color means no change.)
  • Square size: Indicates the company's market capitalization.

A deeper dive

Detailed view of stock performance in the energy sector stock using the Heat Map feature in thinkorswim desktop.

Source: thinkorswim® desktop platform for Mac.

  1. For a closer look at the Energy sector, click the arrow next to the index name to reveal the sectors, then select Energy.
  2. Hover your cursor over any square to see the stock's name, last price, daily percent change, and market capitalization.
  3. For a deeper dive into what's driving that stock, click the square, move your cursor over More info on, then select Fundamentals.

Company fundamentals

Detailed information of an energy sector stock using the Heat Map feature in thinkorswim desktop.

Source: thinkorswim® desktop platform for Mac.

  1. The Fundamentals page provides a wealth of information to deepen your research into a specific company, including: 🅐 Overview of the stock, 🅑 Company Profile, and 🅒 By the Numbers—a breakdown of the company's financials. Some companies, like this one, may also include 🅓 Company Details and, for S&P 500® companies, 🅔 What Drives the Stock.

The bottom line

The Heat Map is an efficient way for traders to zero in on sector standouts and compile a short list of stocks for additional research. From there, traders can use their preferred technical indicators or fundamental screens to evaluate their picks and trade with greater confidence.

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This material is intended for general informational purposes only. This should not be considered an individualized recommendation or personalized investment advice. The investment strategies mentioned here may not be suitable for everyone. Each investor needs to review an investment strategy for his or her own particular situation before making any investment decisions.

All expressions of opinion are subject to change without notice in reaction to shifting market conditions. Data contained herein from third party providers is obtained from what are considered reliable sources. However, its accuracy, completeness or reliability cannot be guaranteed.

For illustrative purposes only. Individual situations will vary. Not intended to be reflective of results you can expect to achieve.

All corporate names and market data shown above are for illustrative purposes only and are not a recommendation, offer to sell, or a solicitation of an offer to buy any security. Supporting documentation for any claims or statistical information is available upon request.

Investing involves risk, including loss of principal.

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