How much did BMRN move each index today?
XBI: BMRN moved +1.61% and contributed +0.03 points of the index's +4.95-point move (1% of it), ranking #52 of 147 members by contribution to the move.
BMRN closed the 2026-08-25 session at 66.12; that day's move sits in the 83th percentile of its own past year. The stock is 5.9% below its 52-week closing high and +11.3% for the year so far.
BMRN in the XBI beyond today
| window | BMRN return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −1.30% | −0.02 pts | +9.00 pts | #129 of 147 |
| 1 month | +9.71% | +0.16 pts | +18.53 pts | #47 of 147 |
| quarter to date | +15.55% | +0.26 pts | +10.87 pts | #25 of 147 |
| year to date | +11.26% | +0.13 pts | +47.19 pts | #87 of 147 |
Who moved with and against BMRN today?
On BMRN's side of the XBI tape: MRNA (+0.60 pts), TWST (+0.23 pts), BEAM (+0.13 pts). Pulling the other way: PTGX (−0.06 pts), SLS (−0.03 pts), PCVX (−0.03 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.