I need a heat map tool for the stock market.

Absolutely. Two good stock-market heatmap tools are:

• tradingview.com — my top pick if you want a clean, interactive map. You can size stocks by market cap or volume and color them by daily/weekly/monthly performance, volatility, relative volume, etc. Stocks can be grouped by sector.
• finviz.com — excellent for quickly seeing the S&P 500 and broader market. Finviz now has maps for market cap, 52-week highs/lows, themes, sectors, industries, countries, and more.
• stockmapper.live — a free alternative with live S&P 500, Nasdaq 100, Dow, Russell 2000, ETF, and other maps.

If you just want one: use TradingView for a polished, customizable heatmap; use Finviz if you want more screening-oriented market maps.

If you tell me whether you want S&P 500, all U.S. stocks, ETFs, or a particular portfolio, I can point you to the best setup.

Here are the best stock market heat map tools available right now, ranging from classic free web scanners to advanced charting platforms:

• Finviz Maps is widely considered the gold standard for quick, clean market visualization. It lets you view the S&P 500, Dow Jones, global markets, ETFs, or crypto grouped by sector, with box sizes representing market cap and colors showing performance (green for up, red for down). The basic version has a slight data delay, but it's completely free and extremely intuitive.
• TradingView Heatmaps offers a deeply customizable, sleek, and modern interface. It covers stocks, ETFs, and global exchanges with real-time data options, allowing you to filter by market cap, revenue, dividends, or performance over various timeframes.
• Yahoo Finance Market Heatmap provides a straightforward, highly accessible layout covering major US indices and global exchanges. It's great if you want a clean view without needing an advanced trading account or steep learning curve.
• Stock Rover is an ideal choice if you are a long-term investor who wants to visualize your specific portfolio holdings, sector weights, and deep fundamental performance metrics rather than just day-to-day market momentum.

To help narrow down the best choice for you, tell me:

• Are you looking for day trading / real-time tracking or long-term investing?
• Do you need it to be 100% free , or are you open to paid subscriptions for real-time tick data?

Here are the best stock market heat map tools available right now, ranging from clean and classic free layouts to advanced, real-time charting platforms:

• Finviz Maps : A legendary, fast, and completely free web-based tool. It sizes stocks by market capitalization and colors them by performance (daily, weekly, or custom intervals). You can instantly toggle between the S&P 500, All Stocks, ETFs, or crypto. Check it out on Finviz Maps.
• TradingView Stock Heatmap : Highly customizable, modern, and interactive. It allows you to group assets by sector, change the sizing metrics (market cap vs. mono size), and filter down performance by different timeframes or pre-market activity. Access it via TradingView Heatmaps.
• Seeking Alpha Market Heatmap : Excellent if you want to tie visual performance directly to fundamental data, sector strength, and crowdsourced or analyst ratings. Explore it on Seeking Alpha.
• QuantConnect Research / Heatmaps : Great for quantitative data nerds and algorithmic traders who want deep, programmable visual inspection of market universes. Check out QuantConnect.

Are you looking for a free basic overview or real-time trading tools with advanced indicators , and do you want to look at a specific index like the S&P 500 or global markets?

Absolutely. If you mean the classic green/red stock-market heat map where the size of each company represents market cap and the color shows its performance, these are the best options:

• tradingview.com — my top pick. You can filter by index/country, group by sector, change the tile size (market cap, volume, etc.), and color by daily change, performance, volatility, and more.
• finviz.com — excellent for a quick S&P 500 / U.S. market snapshot. It has sector/industry groupings and lets you switch between S&P 500, Nasdaq 100, Russell 2000, all stocks, ETFs, crypto, and more.
• stockcharts.com — particularly useful if you want to combine a heat map with technical analysis.

My recommendation

If you want one tool to keep open during the trading day, I'd use TradingView. If you want something simple, fast, and focused on seeing what's moving in the S&P 500, use Finviz.

If you tell me whether you're looking for S&P 500, the entire U.S. market, sectors, ETFs, or your own portfolio, I can point you to the best heat map for that specific use.

Absolutely. If you want a stock-market heat map that shows sectors/stocks as green/red blocks, these are the best options:

🥇 Finviz — my first recommendation

• Excellent S&P 500 and whole-market heat map
• Blocks are sized by market cap
• Green/red coloring makes winners and losers immediately obvious
• Can switch between S&P 500, Nasdaq 100, Dow, Russell 2000, ETFs, etc.
• You can view performance over different time periods.
• Free version is very useful, although some market data is delayed.

🥈 TradingView

Better if you want a more customizable heat map plus serious charting. It covers stocks and other asset classes and offers more ways to customize what determines the color/size of the tiles.

What I'd use

Quickly answer “What's moving the market today?” → Finviz

Find stocks + analyze charts + set alerts → TradingView

If you tell me whether you're looking for day trading, S&P 500 investing, or finding unusual movers, I can point you to the specific heat map setup I'd use.

Here are the best and most popular stock market heatmap tools available right now, ranging from classic macro sector views to deep, customizable multi-asset scanners:

• TradingView Heatmap — Widely considered the best overall platform. It features real-time data, support for global exchanges, and robust customization (allowing you to size blocks by market cap or volume and color them by 1-day change, P/E ratio, dividend yield, and more). It covers stocks, ETFs, forex, and crypto.
• Finviz Maps — The legendary free web-based tool for a quick visual snapshot of the S&P 500, Dow Jones, Nasdaq 100, or Russell 2000. The size of each block indicates market capitalization and the color intensity shows performance. The free version has a slight data delay, but it's unmatched for fast, clean, zero-friction scanning.
• TrendSpider Heatmaps — Great if you want advanced customization. It offers deeply flexible US stock, ETF, and sector views with dozens of selectable criteria tailored for active technical and fundamental traders.
• Stock Rover — Ideal for long-term and fundamental investors. It lets you build and visualize custom portfolio and watchlist heatmaps based on financial performance, growth metrics, and valuation rather than just daily price action.

Are you looking for a free macro overview (like daily performance of the S&P 500) or do you need a tool with advanced data/order-flow metrics?

Absolutely. If you mean a visual stock-market heat map where green/red tiles show performance and tile size represents market cap, these are the best options:

1. TradingView Heatmaps — Best overall

   • Stocks, ETFs, and crypto
   • Group by sector
   • Change colors by performance, volatility, relative volume, etc.
   • Resize tiles by market cap, volume, or other metrics
   • Very interactive and customizable.

2. Finviz Maps — Best simple/free stock map

   • Excellent for quickly seeing what's moving in the S&P 500 and other indexes
   • Sector/industry organization
   • Finviz added maps for market cap, 52-week highs/lows, insider activity, themes, and more in 2026.
   • Free maps use delayed data; real-time/intraday functionality is part of Elite.

3. StockCharts MarketCarpets — Best for technical analysis

   • Heat maps for S&P 500, Nasdaq 100, sectors, ETFs, and other groups
   • Particularly useful if you want to combine the heat map with technical indicators.

My pick: Start with TradingView if you want something interactive and customizable. Use Finviz if you just want to open a page and instantly see what's green, what's red, and which sectors are moving.

If you tell me whether you're looking for S&P 500, the entire U.S. market, ETFs, or a heat map for your own portfolio, I can point you to the best one.

Here are the best stock market heat map tools available, categorized by what they do best:

• TradingView Stock Heatmap — Best overall and most customizable. It covers global exchanges , provides real-time data on free tiers , and lets you weight blocks by market cap, volume, or performance across multiple asset classes (stocks, crypto, ETFs).
• Finviz Map — Best for quick, zero-config visual scans. It is a classic favorite that groups the S&P 500 or full market by sector, sizing each block by market cap and color-coding performance with clean grid layouts.
• StockCharts Market Carpets — Best for technical analysis and sector rotation. Allows you to map diverse index members and groups (like S&P 500, NASDAQ 100, or sector ETFs) and overlay different performance metrics or technical indicators.
• Yahoo Finance Heatmaps — Best for straightforward, no-frills overviews. Great for glancing at today's most active stocks or sector gainers and losers without navigating a heavy charting suite.
• thinkorswim by Charles Schwab — Best desktop platform-integrated tool. Offers robust, highly customizable heat maps directly tied into your live trading dashboard and watchlists.

If you can tell me whether you need a free web tool , a mobile app , or a broker-integrated platform , I can help you choose the best fit for your workflow.

Absolutely. If you mean the green/red market map where each stock is a tile sized by market cap and colored by performance, these are the best options:

• TradingView Stock Heatmap — my top pick. You can group stocks by sector, change the tile size by market cap or other metrics, and color them by daily performance, volatility, etc.
• Finviz Maps — excellent if you primarily want a quick S&P 500 / U.S. market overview. Finviz has expanded its maps to include things like 52-week highs/lows and other market views.
• Stock Rover — worth considering if you want heatmaps tied more closely to portfolio analysis and fundamental screening.

What I'd use

For a quick morning scan, I'd use TradingView:

Stocks → S&P 500 → Size = Market Cap → Color = 1D % Change → Group = Sector

That gives you an instant picture of which sectors and mega-cap stocks are driving the market.

If you tell me whether you're looking for (1) free, (2) real-time, (3) options/volume heatmaps, or (4) a heatmap specifically for your portfolio, I can point you to the best one.

The best stock market heat map tools available depend on whether you want a clean, classic macro overview, deep technical customization, or portfolio tracking:

• TradingView Heatmap — Best overall platform. It offers multi-asset coverage (stocks, ETFs, crypto, forex) with 14 different weighting options (market cap, revenue, P/E ratio, dividend yield, etc.). Clicking any tile instantly links to its pro-grade charting workspace. Access it via the TradingView Heatmap.
• Finviz Maps — Best for fast, classic market scans. Finviz features the most iconic, clean visual map of the S&P 500 and global exchanges. It lets you drill down by sector and industry instantly, though free data has a minor delay. Check it out on Finviz Maps.
• Stock Rover — Best for long-term investors and portfolios. It integrates deeply with fundamental analysis and allows you to visualize and track your personalized portfolio performance as a heat map. Explore the platform at Stock Rover.
• Bookmap — Best for day traders tracking liquidity. Unlike standard performance block maps, Bookmap provides an order-flow and depth-of-market liquidity heat map to visualize real-time buyer/seller queues at the tick level. Learn more at Bookmap.

If you let me know:

• Are you looking for a free or paid tool?
• Do you want to view sectors/stocks, crypto/forex, or live order flow liquidity?

I can recommend the exact fit for your workflow.