How much did CMPX move each index today?
XBI: CMPX moved +5.42% and contributed +0.01 points of the index's +4.95-point move (0% of it), ranking #91 of 147 members by contribution to the move.
CMPX closed the 2026-08-25 session at 2.53; that day's move sits in the 90th percentile of its own past year. The stock is 62.2% below its 52-week closing high and −52.9% for the year so far.
CMPX in the XBI beyond today
| window | CMPX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +5.86% | +0.01 pts | +9.00 pts | #82 of 147 |
| 1 month | +21.63% | +0.04 pts | +18.53 pts | #84 of 147 |
| quarter to date | +15.53% | +0.04 pts | +10.87 pts | #74 of 147 |
| year to date | −52.89% | −0.13 pts | +47.19 pts | #125 of 147 |
Who moved with and against CMPX today?
On CMPX'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/CMPX, free to cite with attribution.