How much did SNDX move each index today?
XBI: SNDX moved +0.35% and contributed +0.00 points against the index's −0.15-point move, offsetting 2% of it, ranking #97 of 147 members by contribution to the move.
SNDX closed the 2026-08-27 session at 20.16; that day's move sits in the 56th percentile of its own past year. The stock is 19.8% below its 52-week closing high and −4.0% for the year so far.
SNDX in the XBI beyond today
| window | SNDX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +2.08% | +0.02 pts | +4.86 pts | #78 of 147 |
| 1 month | +4.89% | +0.05 pts | +20.33 pts | #85 of 147 |
| quarter to date | −7.78% | −0.09 pts | +9.99 pts | #119 of 147 |
| year to date | −4.05% | +0.10 pts | +46.31 pts | #94 of 147 |
Who moved with and against SNDX today?
On SNDX's side of the XBI tape: SLS (+0.13 pts), SRPT (+0.10 pts), PURR (+0.08 pts). Pulling the other way: MRNA (−0.17 pts), KYMR (−0.08 pts), VERA (−0.07 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/SNDX, free to cite with attribution.