How much did CELC move each index today?
XBI: CELC moved −1.94% and contributed −0.02 points of the index's −0.15-point move (16% of it), ranking #10 of 147 members by contribution to the move.
CELC closed the 2026-08-27 session at 93.24; that day's move sits in the 26th percentile of its own past year. The stock is 35.7% below its 52-week closing high and −6.5% for the year so far.
CELC in the XBI beyond today
| window | CELC return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +2.95% | +0.05 pts | +4.86 pts | #41 of 147 |
| 1 month | +11.99% | +0.18 pts | +20.33 pts | #47 of 147 |
| quarter to date | −10.88% | −0.22 pts | +9.99 pts | #136 of 147 |
| year to date | −6.52% | −0.25 pts | +46.31 pts | #138 of 147 |
Who moved with and against CELC today?
On CELC's side of the XBI tape: MRNA (−0.17 pts), KYMR (−0.08 pts), VERA (−0.07 pts). Pulling the other way: SLS (+0.13 pts), SRPT (+0.10 pts), PURR (+0.08 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/CELC, free to cite with attribution.