How much did SMMT move each index today?
XBI: SMMT moved +2.45% and contributed +0.03 points of the index's +4.46-point move (1% of it), ranking #48 of 154 members by contribution to the move.
SMMT closed the 2026-10-09 session at 17.59; that day's move sits in the 77th percentile of its own past year. The stock is 33.3% below its 52-week closing high and +0.6% for the year so far.
SMMT in the XBI beyond today
| window | SMMT return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +4.98% | +0.05 pts | −0.68 pts | #134 of 157 |
| 1 month | +3.47% | +0.06 pts | −3.07 pts | #128 of 157 |
| quarter to date | +4.02% | +0.04 pts | −3.93 pts | #141 of 157 |
| year to date | +0.57% | −0.49 pts | +31.82 pts | #148 of 157 |
Who moved with and against SMMT today?
On SMMT'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/SMMT, free to cite with attribution.