How much did SMCI move each index today?
S&P 500: SMCI moved −1.58% and contributed −0.0 points of the index's −9.7-point move (0% of it), ranking #94 of 503 members by contribution to the move.
XLK: SMCI moved −1.58% and contributed −0.00 points against the index's +0.29-point move, offsetting 1% of it, ranking #55 of 73 members by contribution to the move.
SMCI closed the 2026-08-25 session at 38.46; that day's move sits in the 95th percentile of its own past year. The stock is 34.5% below its 52-week closing high and +31.4% for the year so far.
SMCI in the S&P 500 beyond today
| window | SMCI return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +2.81% | +0.1 pts | −14.5 pts | #332 of 503 |
| 1 month | +29.02% | +0.6 pts | +264.1 pts | #104 of 503 |
| quarter to date | +31.13% | +0.6 pts | +177.9 pts | #136 of 503 |
| year to date | +31.40% | +0.5 pts | +831.8 pts | #200 of 503 |
Who moved with and against SMCI today?
On SMCI's side of the S&P 500 tape: NVDA (−8.1 pts), GOOGL (−4.2 pts), LLY (−4.2 pts). Pulling the other way: AAPL (+5.9 pts), MSFT (+2.1 pts), META (+1.6 pts).
Every member's contribution, top to bottom, is on the index dashboards; the day's story is in the market-close note. Machine-readable figures for this stock: /api/stock/SMCI, free to cite with attribution.