How much did ARM move each index today?
NASDAQ 100: ARM moved +1.16% and contributed +2.2 points of the index's +186.0-point move (1% of it), ranking #19 of 102 members by contribution to the move.
SMH: ARM moved +1.16% and contributed +0.06 points of the index's +9.02-point move (1% of it), ranking #17 of 25 members by contribution to the move.
ARM closed the 2026-08-25 session at 241.56; that day's move sits in the 64th percentile of its own past year. The stock is 45.0% below its 52-week closing high and +121.0% for the year so far.
ARM in the NASDAQ 100 beyond today
| window | ARM return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −4.64% | −13.5 pts | −281.7 pts | #17 of 102 |
| 1 month | −9.30% | −31.1 pts | +1,170.0 pts | #95 of 102 |
| quarter to date | −31.87% | −110.3 pts | −1,067.1 pts | #13 of 102 |
| year to date | +120.99% | +94.0 pts | +3,959.4 pts | #10 of 102 |
Who moved with and against ARM today?
On ARM's side of the NASDAQ 100 tape: NVDA (+82.7 pts), SPCX (+29.9 pts), AMD (+27.4 pts). Pulling the other way: GOOG (−11.4 pts), GOOGL (−10.1 pts), AMZN (−8.1 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/ARM, free to cite with attribution.