How much did MLYS move each index today?
XBI: MLYS moved +0.46% and contributed +0.00 points against the index's −0.15-point move, offsetting 3% of it, ranking #101 of 147 members by contribution to the move.
MLYS closed the 2026-08-27 session at 26.01; that day's move sits in the 63th percentile of its own past year. The stock is 45.0% below its 52-week closing high and −28.3% for the year so far.
MLYS in the XBI beyond today
| window | MLYS return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +1.01% | +0.01 pts | +4.86 pts | #90 of 147 |
| 1 month | −1.29% | −0.01 pts | +20.33 pts | #122 of 147 |
| quarter to date | −3.60% | +0.03 pts | +9.99 pts | #71 of 147 |
| year to date | −28.33% | −0.30 pts | +46.31 pts | #140 of 147 |
Who moved with and against MLYS today?
On MLYS'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/MLYS, free to cite with attribution.