How much did IRWD move each index today?
XBI: IRWD moved −2.16% and contributed −0.01 points of the index's −0.62-point move (1% of it), ranking #53 of 147 members by contribution to the move.
IRWD closed the 2026-08-25 session at 4.39; that day's move sits in the 87th percentile of its own past year. The stock is 18.6% below its 52-week closing high and +30.3% for the year so far.
IRWD in the XBI beyond today
| window | IRWD return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +1.86% | +0.01 pts | +9.00 pts | #92 of 147 |
| 1 month | +12.28% | +0.04 pts | +18.53 pts | #86 of 147 |
| quarter to date | +4.28% | +0.06 pts | +10.87 pts | #67 of 147 |
| year to date | +30.27% | +0.24 pts | +47.19 pts | #66 of 147 |
Who moved with and against IRWD today?
On IRWD's side of the XBI tape: MRNA (−0.36 pts), SYRE (−0.29 pts), RLAY (−0.10 pts). Pulling the other way: BHVN (+0.16 pts), ERAS (+0.14 pts), SMMT (+0.11 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/IRWD, free to cite with attribution.