How much did RYTM move each index today?
XBI: RYTM moved −1.10% and contributed −0.02 points of the index's −1.29-point move (2% of it), ranking #28 of 147 members by contribution to the move.
RYTM closed the 2026-08-25 session at 113.35; that day's move sits in the 72th percentile of its own past year. The stock is 3.6% below its 52-week closing high and +5.9% for the year so far.
RYTM in the XBI beyond today
| window | RYTM return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | −1.65% | −0.03 pts | +9.00 pts | #134 of 147 |
| 1 month | +6.80% | +0.15 pts | +18.53 pts | #50 of 147 |
| quarter to date | +2.09% | +0.07 pts | +10.87 pts | #60 of 147 |
| year to date | +5.89% | +0.28 pts | +47.19 pts | #59 of 147 |
Who moved with and against RYTM today?
On RYTM's side of the XBI tape: MRNA (−0.33 pts), SYRE (−0.29 pts), RLAY (−0.10 pts). Pulling the other way: ERAS (+0.17 pts), SMMT (+0.10 pts), BHVN (+0.10 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/RYTM, free to cite with attribution.