How much did BMRN move each index today?
XBI: BMRN moved −0.17% and contributed −0.00 points against the index's +4.46-point move, offsetting 0% of it, ranking #145 of 154 members by contribution to the move.
BMRN closed the 2026-10-09 session at 54.80; that day's move sits in the 50th percentile of its own past year. The stock is 22.0% below its 52-week closing high and −7.8% for the year so far.
BMRN in the XBI beyond today
| window | BMRN return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −4.17% | −0.09 pts | −0.68 pts | #13 of 157 |
| 1 month | −16.36% | −0.39 pts | −3.07 pts | #12 of 157 |
| quarter to date | −8.67% | −0.18 pts | −3.93 pts | #11 of 157 |
| year to date | −7.80% | −0.38 pts | +31.82 pts | #141 of 157 |
Who moved with and against BMRN today?
On BMRN's side of the XBI tape: PRAX (−0.03 pts), MDGL (−0.02 pts), PURR (−0.02 pts). Pulling the other way: MRNA (+0.45 pts), IOVA (+0.23 pts), PCVX (+0.19 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/BMRN, free to cite with attribution.