How much did SNDK move each index today?
S&P 500: SNDK moved +1.48% and contributed +0.4 points against the index's −10.4-point move, offsetting 4% of it, ranking #485 of 503 members by contribution to the move.
NASDAQ 100: SNDK moved +1.48% and contributed +2.1 points against the index's −151.3-point move, offsetting 1% of it, ranking #94 of 102 members by contribution to the move.
XLK: SNDK moved +1.48% and contributed +0.04 points of the index's +0.28-point move (15% of it), ranking #11 of 73 members by contribution to the move.
SNDK closed the 2026-08-25 session at 1,480.77; that day's move sits in the 36th percentile of its own past year. The stock is 36.6% below its 52-week closing high and +523.8% for the year so far.
SNDK in the S&P 500 beyond today
| window | SNDK return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −8.92% | −2.6 pts | −14.5 pts | #9 of 503 |
| 1 month | +15.85% | +4.0 pts | +264.1 pts | #18 of 503 |
| quarter to date | −34.87% | −11.0 pts | +177.9 pts | #494 of 503 |
| year to date | +523.80% | +19.1 pts | +831.8 pts | #9 of 503 |
Who moved with and against SNDK today?
On SNDK's side of the S&P 500 tape: AAPL (+6.0 pts), MSFT (+1.9 pts), META (+1.6 pts). Pulling the other way: NVDA (−8.0 pts), GOOGL (−4.2 pts), LLY (−4.1 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/SNDK, free to cite with attribution.