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2026-08-26 · session in progress, unofficial until close

DYNE THERAPEUTICS INC (DYN) and the market

Exact index points DYN contributed this session, under each index's own arithmetic, verified against official closes. New here? Read point contribution, explained.

How much did DYN move each index today?

XBI: DYN moved +0.11% and contributed +0.00 points against the index's −0.64-point move, offsetting 0% of it, ranking #104 of 147 members by contribution to the move.

DYN closed the 2026-08-25 session at 26.34; that day's move sits in the 65th percentile of its own past year. The stock is 1.6% below its 52-week closing high and +34.7% for the year so far.

DYN in the XBI beyond today

windowDYN returnpoints contributedindex moverank
1 week+1.31%+0.02 pts+9.00 pts#70 of 147
1 month+2.77%+0.05 pts+18.53 pts#80 of 147
quarter to date+18.60%+0.31 pts+10.87 pts#16 of 147
year to date+34.66%+0.59 pts+47.19 pts#34 of 147

Who moved with and against DYN today?

On DYN's side of the XBI tape: BHVN (+0.16 pts), ERAS (+0.14 pts), SMMT (+0.11 pts). Pulling the other way: MRNA (−0.35 pts), SYRE (−0.29 pts), RLAY (−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/DYN, free to cite with attribution.

Compiled by the WMTMT attribution engine · updates every session · methodology