How much did ALAB move each index today?
NASDAQ 100: ALAB moved −1.39% and contributed −0.5 points against the index's +157.3-point move, offsetting 0% of it, ranking #79 of 100 members by contribution to the move.
SMH: ALAB moved −1.39% and contributed −0.11 points of the index's −3.94-point move (3% of it), ranking #12 of 24 members by contribution to the move.
ALAB closed the 2026-10-09 session at 342.21; that day's move sits in the 37th percentile of its own past year. The stock is 29.2% below its 52-week closing high and +105.7% for the year so far.
ALAB in the NASDAQ 100 beyond today
| window | ALAB return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −2.32% | −2.5 pts | +75.2 pts | #72 of 101 |
| 1 month | +20.27% | +3.1 pts | +1,779.6 pts | #44 of 101 |
| quarter to date | −3.87% | −2.9 pts | +474.7 pts | #79 of 101 |
| year to date | +105.70% | −10.3 pts | +5,633.3 pts | #82 of 101 |
Who moved with and against ALAB today?
On ALAB's side of the NASDAQ 100 tape: AAPL (−29.8 pts), NVDA (−15.6 pts), TMUS (−13.2 pts). Pulling the other way: MSFT (+50.0 pts), AMZN (+48.8 pts), GOOGL (+22.3 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/ALAB, free to cite with attribution.