How much did ARWR move each index today?
XBI: ARWR moved +0.27% and contributed +0.00 points against the index's −0.71-point move, offsetting 1% of it, ranking #106 of 145 members by contribution to the move.
ARWR closed the 2026-08-26 session at 89.12; that day's move sits in the 51th percentile of its own past year. The stock is 0.5% below its 52-week closing high and +34.2% for the year so far.
ARWR in the XBI beyond today
| window | ARWR return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −0.32% | −0.01 pts | −1.16 pts | #68 of 147 |
| 1 month | +3.89% | +0.07 pts | +18.61 pts | #72 of 147 |
| quarter to date | +9.34% | +0.23 pts | +10.14 pts | #30 of 147 |
| year to date | +34.24% | +0.62 pts | +46.46 pts | #33 of 147 |
Who moved with and against ARWR today?
On ARWR's side of the XBI tape: ERAS (+0.11 pts), BHVN (+0.09 pts), SMMT (+0.07 pts). Pulling the other way: MRNA (−0.24 pts), SYRE (−0.24 pts), RLAY (−0.08 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/ARWR, free to cite with attribution.