How much did GERN move each index today?
XBI: GERN moved −1.61% and contributed −0.01 points of the index's −0.95-point move (1% of it), ranking #55 of 147 members by contribution to the move.
GERN closed the 2026-08-25 session at 1.55; that day's move sits in the 72th percentile of its own past year. The stock is 20.5% below its 52-week closing high and +17.4% for the year so far.
GERN in the XBI beyond today
| window | GERN return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +1.31% | +0.01 pts | +9.00 pts | #91 of 147 |
| 1 month | +4.73% | +0.02 pts | +18.53 pts | #101 of 147 |
| quarter to date | +21.09% | +0.15 pts | +10.87 pts | #40 of 147 |
| year to date | +17.42% | +0.03 pts | +47.19 pts | #109 of 147 |
Who moved with and against GERN today?
On GERN's side of the XBI tape: MRNA (−0.36 pts), SYRE (−0.31 pts), RLAY (−0.10 pts). Pulling the other way: ERAS (+0.14 pts), SMMT (+0.11 pts), SRRK (+0.11 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/GERN, free to cite with attribution.