How much did CYTK move each index today?
XBI: CYTK moved +1.45% and contributed +0.03 points of the index's +4.46-point move (1% of it), ranking #44 of 154 members by contribution to the move.
CYTK closed the 2026-10-09 session at 62.91; that day's move sits in the 73th percentile of its own past year. The stock is 27.9% below its 52-week closing high and −1.0% for the year so far.
CYTK in the XBI beyond today
| window | CYTK return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −4.10% | −0.09 pts | −0.68 pts | #12 of 157 |
| 1 month | −14.55% | −0.36 pts | −3.07 pts | #15 of 157 |
| quarter to date | −4.55% | −0.10 pts | −3.93 pts | #19 of 157 |
| year to date | −0.99% | +0.27 pts | +31.82 pts | #45 of 157 |
Who moved with and against CYTK today?
On CYTK'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/CYTK, free to cite with attribution.