How much did ALLO move each index today?
XBI: ALLO moved −5.99% and contributed −0.02 points of the index's −0.71-point move (3% of it), ranking #24 of 145 members by contribution to the move.
ALLO closed the 2026-08-26 session at 2.04; that day's move sits in the 8th percentile of its own past year. The stock is 33.3% below its 52-week closing high and +48.9% for the year so far.
ALLO in the XBI beyond today
| window | ALLO return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −8.52% | −0.03 pts | −1.16 pts | #39 of 147 |
| 1 month | +22.89% | +0.08 pts | +18.61 pts | #70 of 147 |
| quarter to date | −1.92% | +0.01 pts | +10.14 pts | #88 of 147 |
| year to date | +48.91% | +0.06 pts | +46.46 pts | #106 of 147 |
Who moved with and against ALLO today?
On ALLO's side of the XBI tape: MRNA (−0.24 pts), SYRE (−0.24 pts), RLAY (−0.08 pts). Pulling the other way: ERAS (+0.11 pts), BHVN (+0.09 pts), SMMT (+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/ALLO, free to cite with attribution.