How much did IMMX move each index today?
XBI: IMMX moved −0.36% and contributed −0.00 points of the index's −0.69-point move (0% of it), ranking #82 of 145 members by contribution to the move.
IMMX closed the 2026-08-26 session at 14.07; that day's move sits in the 26th percentile of its own past year. The stock is 2.8% below its 52-week closing high and +169.0% for the year so far.
IMMX in the XBI beyond today
| window | IMMX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +6.67% | +0.03 pts | −1.16 pts | #118 of 147 |
| 1 month | +66.71% | +0.18 pts | +18.61 pts | #41 of 147 |
| quarter to date | +36.47% | +0.15 pts | +10.14 pts | #46 of 147 |
| year to date | +169.02% | +0.27 pts | +46.46 pts | #68 of 147 |
Who moved with and against IMMX today?
On IMMX's side of the XBI tape: MRNA (−0.23 pts), VERA (−0.07 pts), BHVN (−0.06 pts). Pulling the other way: SLS (+0.19 pts), PURR (+0.16 pts), RVMD (+0.06 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/IMMX, free to cite with attribution.