How much did ACAD move each index today?
XBI: ACAD moved +3.10% and contributed +0.06 points of the index's +4.95-point move (1% of it), ranking #27 of 147 members by contribution to the move.
ACAD closed the 2026-08-25 session at 30.57; that day's move sits in the 90th percentile of its own past year. The stock is at its 52-week closing high and +14.5% for the year so far.
ACAD in the XBI beyond today
| window | ACAD return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +1.29% | +0.02 pts | +9.00 pts | #71 of 147 |
| 1 month | +20.40% | +0.31 pts | +18.53 pts | #17 of 147 |
| quarter to date | +20.83% | +0.34 pts | +10.87 pts | #13 of 147 |
| year to date | +14.45% | +0.21 pts | +47.19 pts | #71 of 147 |
Who moved with and against ACAD today?
On ACAD's side of the XBI tape: MRNA (+0.60 pts), TWST (+0.23 pts), BEAM (+0.13 pts). Pulling the other way: PTGX (−0.06 pts), SLS (−0.03 pts), PCVX (−0.03 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/ACAD, free to cite with attribution.