Stock Market Heatmap: S&P 500 Heat Map
This S&P 500 heatmap shows every stock in the index at once. Each tile is sized by market capitalization and colored by its price change, green for up and red for down, and tiles are grouped by sector and industry so you can see which parts of the market are leading. It updates live during market hours, and you can switch the period to premarket, after hours, yesterday, one week, one month, year to date or one year.
Frequently asked questions
- What is a stock heatmap?
- A stock heatmap is a market map where each stock is a tile. Tile size shows market capitalization and tile color shows performance, so you can see the whole market's moves, and which sectors are driving them, in one view.
- How do I read the S&P 500 heat map?
- Bigger tiles are bigger companies, so they move the index more. Green tiles are up and red tiles are down; the deeper the color, the bigger the move. Tiles are grouped by sector, so a block of one color shows a sector-wide move.
- Is the heatmap live?
- Yes. During market hours the S&P 500 heatmap updates in real time. Outside market hours you can view premarket and after-hours moves, or switch to longer periods like one week or year to date.
- Can I see heatmaps for other indexes and ETFs?
- Yes. Each ETF has its own heatmap of its holdings, including QQQ for the Nasdaq 100, DIA for the Dow, IWM for the Russell 2000 and sector ETFs like XLK and SOXX.