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S&P 500 Sector Heatmap
Every S&P 500 stock as a tile, grouped into the 11 GICS sectors, sized by average dollar volume and colored by return. Switch to Live for intraday prices, or pick a longer period to see whether a rotation is noise or a trend.
Data as of the Thursday, October 8, 2026 close. Refreshed each trading day after the close. Constituents from Wikipedia; daily prices from Yahoo Finance; indicators computed by this site. Delayed and for education only; verify before acting.
Drawing the map…
Sector performance on Oct 8, 2026
The strongest sector was Energy (+2.73% average move) and the weakest was Information Technology (-1.11%), a spread of 3.84 percentage points between the best and worst group. Across the index 339 stocks rose and 161 fell.
| Sector | Stocks | 1 day | 1 week | 1 month | YTD | 1 year | Adv / Dec | Above 200d |
|---|---|---|---|---|---|---|---|---|
| Energy | 21 | +2.73% | +4.5% | -1.3% | +48.6% | +49.8% | 21 / 0 | 71.4% |
| Consumer Staples | 33 | +1.96% | +3.3% | -1.4% | +4.7% | +5.8% | 31 / 2 | 39.4% |
| Consumer Discretionary | 47 | +1.45% | +1.4% | -1.9% | -8.1% | -5.3% | 36 / 11 | 34% |
| Financials | 76 | +1.28% | +1.3% | -4.7% | -0.1% | +1.9% | 64 / 12 | 47.4% |
| Communication Services | 22 | +1.21% | +2.4% | -2.2% | -10.5% | -6.5% | 17 / 5 | 40.9% |
| Real Estate | 30 | +0.94% | +0.4% | -6.0% | -1.0% | -3.7% | 23 / 7 | 13.3% |
| Industrials | 83 | +0.78% | +0.4% | -1.7% | +8.6% | +10.7% | 57 / 25 | 39.8% |
| Materials | 24 | +0.63% | +0.7% | -5.2% | +8.3% | +11.6% | 18 / 6 | 33.3% |
| Health Care | 60 | +0.02% | +1.0% | +1.9% | +19.7% | +27.4% | 29 / 31 | 71.7% |
| Utilities | 31 | -0.09% | +3.4% | -3.6% | -2.6% | -7.1% | 21 / 9 | 6.5% |
| Information Technology | 75 | -1.11% | +0.7% | +6.3% | +59.8% | +73.8% | 22 / 53 | 72% |
Sector returns are the simple average of the constituent stocks' returns, which weights each company equally. Sector ETFs are cap-weighted and will differ.
Biggest movers
Top gainers
| CSGP CoStar Group | +8.01% |
| CMG Chipotle Mexican Grill | +6.21% |
| GDDY GoDaddy | +6.15% |
| ACN Accenture | +5.96% |
| IT Gartner | +5.19% |
| CTSH Cognizant | +5.15% |
| FDS FactSet | +5.04% |
| LDOS Leidos | +4.99% |
Top decliners
| COHR Coherent Corp. | -9.63% |
| GLW Corning Inc. | -6.38% |
| VST Vistra Corp. | -6.35% |
| BE Bloom Energy | -6.34% |
| LITE Lumentum | -5.62% |
| ORCL Oracle Corporation | -5.48% |
| INTC Intel | -5.34% |
| SNDK Sandisk | -4.90% |
How to read a heatmap
Look at the blocks before the tiles. If the whole map is one color, the move was about the market: a rate decision, a jobs report, a shock. If the map is split, with some sectors green and others red, the move was about rotation, and the question becomes where the money went and why.
Then switch periods. A sector that is red today and green over one month had a bad day inside a good run, which is normal. A sector that is red on every period is in a downtrend, and a single green day is not evidence of anything. The map is a way of asking the same question over several horizons quickly.
For what the sectors are and how they behave through the cycle read the sector ETF guide and macro regimes. For whether a broad move has participation behind it, see the breadth dashboard, and to filter the names inside any sector use the screener.
Frequently asked questions
What is a stock market heatmap?
A heatmap shows every stock in an index as a tile, grouped by sector, sized by importance and colored by its return over a period. Green tiles rose, red tiles fell, and the intensity of the color shows how much. It compresses 500 price changes into one picture you can read in seconds.
What determines the size of each tile?
Average daily dollar volume over the last 20 sessions, which is share volume multiplied by price. It is a proxy for how much money trades in the stock each day and tracks market capitalization closely for large companies. Tiles are grouped by GICS sector so you can compare sectors as blocks.
Why are the tiles not exactly the same as market cap weighting?
Because the data feed does not include market capitalization, the map uses dollar volume instead. Heavily traded names appear a little larger than their index weight and thinly traded names a little smaller, but the picture of where money moved is the same.
What does sector rotation mean?
Money leaving one group of sectors for another. When the heatmap shows technology and consumer discretionary red while utilities, staples and health care are green, investors are moving toward defensive sectors. The reverse pattern shows risk appetite returning. Switching the period to one month or year-to-date shows whether the rotation is a day or a trend.
How current is the heatmap?
It is built from the previous close and refreshed each trading day after the market closes. It is not a live intraday map. The as-of date is shown above the chart.