How much did ORKA move each index today?
XBI: ORKA moved −2.34% and contributed −0.04 points of the index's −0.71-point move (6% of it), ranking #7 of 145 members by contribution to the move.
ORKA closed the 2026-08-26 session at 99.44; that day's move sits in the 21th percentile of its own past year. The stock is 12.1% below its 52-week closing high and +228.1% for the year so far.
ORKA in the XBI beyond today
| window | ORKA return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −9.34% | −0.23 pts | −1.16 pts | #3 of 147 |
| 1 month | +9.94% | +0.22 pts | +18.61 pts | #27 of 147 |
| quarter to date | +4.49% | −0.11 pts | +10.14 pts | #119 of 147 |
| year to date | +228.08% | +1.45 pts | +46.46 pts | #4 of 147 |
Who moved with and against ORKA today?
On ORKA'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/ORKA, free to cite with attribution.