How much did BCRX move each index today?
XBI: BCRX moved +3.14% and contributed +0.03 points of the index's +4.46-point move (1% of it), ranking #45 of 154 members by contribution to the move.
BCRX closed the 2026-10-09 session at 8.55; that day's move sits in the 87th percentile of its own past year. The stock is 23.0% below its 52-week closing high and +9.6% for the year so far.
BCRX in the XBI beyond today
| window | BCRX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +4.65% | +0.04 pts | −0.68 pts | #130 of 157 |
| 1 month | +3.14% | +0.02 pts | −3.07 pts | #116 of 157 |
| quarter to date | +2.64% | +0.02 pts | −3.93 pts | #136 of 157 |
| year to date | +9.62% | +0.00 pts | +31.82 pts | #78 of 157 |
Who moved with and against BCRX today?
On BCRX'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/BCRX, free to cite with attribution.