How much did AVTX move each index today?
XBI: AVTX moved +1.64% and contributed +0.01 points of the index's +4.46-point move (0% of it), ranking #88 of 154 members by contribution to the move.
AVTX closed the 2026-10-09 session at 13.65; that day's move sits in the 66th percentile of its own past year. The stock is 40.3% below its 52-week closing high and −24.8% for the year so far.
AVTX in the XBI beyond today
| window | AVTX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −8.94% | −0.03 pts | −0.68 pts | #36 of 157 |
| 1 month | −20.55% | −0.06 pts | −3.07 pts | #76 of 157 |
| quarter to date | −10.96% | −0.04 pts | −3.93 pts | #50 of 157 |
| year to date | −24.83% | +0.03 pts | +31.82 pts | #73 of 157 |
Who moved with and against AVTX today?
On AVTX's side of the XBI tape: MRNA (+0.45 pts), IOVA (+0.23 pts), PCVX (+0.19 pts). Pulling the other way: PRAX (−0.03 pts), MDGL (−0.02 pts), PURR (−0.02 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/AVTX, free to cite with attribution.