How much did PTGX move each index today?
XBI: PTGX moved +0.88% and contributed +0.02 points against the index's −1.68-point move, offsetting 1% of it, ranking #146 of 154 members by contribution to the move.
PTGX closed the 2026-10-09 session at 143.73; that day's move sits in the 86th percentile of its own past year. The stock is 9.4% below its 52-week closing high and +64.6% for the year so far.
PTGX in the XBI beyond today
| window | PTGX return | points contributed | index move | rank |
|---|---|---|---|---|
| 1 week | +2.62% | +0.06 pts | −0.68 pts | #139 of 157 |
| 1 month | −0.99% | −0.09 pts | −3.07 pts | #51 of 157 |
| quarter to date | +2.02% | +0.05 pts | −3.93 pts | #142 of 157 |
| year to date | +64.56% | +1.01 pts | +31.82 pts | #19 of 157 |
Who moved with and against PTGX today?
On PTGX's side of the XBI tape: BIIB (+0.10 pts), REGN (+0.06 pts), EXEL (+0.04 pts). Pulling the other way: TWST (−0.19 pts), MRNA (−0.16 pts), RXRX (−0.09 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/PTGX, free to cite with attribution.