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DYN · Dyne Therapeutics, Inc.

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$17.22 -7.06 (-29.09%)
Russell 2000 member Rebalance outlook locked
Market Cap
$4.53B
Shares
186.75M

Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.

Pull short interest history through the short interest API or MCP →

DYN Latest Reported Short Interest

FINRA reported 21,459,799 DYN shares sold short as of the August 14, 2026 settlement date, a decrease of 510,741 shares. Days to cover was 10.95 based on FINRA's reported average daily volume.

Official FINRA short-interest data · share counts are restated for subsequent splits of this listing

DYN Short Interest Forecast

Equibles' model estimates 21,372,667 shares sold short for the August 31, 2026 settlement, -0.4% versus the latest reported position, with a likely range of 19,550,301 to 23,072,533 shares. This model prediction uses FINRA data through August 31, 2026; FINRA's official release is expected September 10, 2026.

Model estimate

Expected Aug 31 short interest

as of Aug 31 High confidence 70% chance it falls
21,372,667 -0.4% vs reported
Likely range 19,550,301 to 23,072,533 The latest estimate appears in the chart below. Official release expected Sep 10. Methodology
Short Squeeze Score
70/100
Short interest 11.5% of shares — P92 Days to cover 11.0 — P91 Price vs VWAP +4.3% — P69 Short-volume trend -11.5% — P16 Short interest change -2.3% — P43 Worst FTD 0.03% of shares — P68

Positioning score 69.6 + catalyst boost 0 (total capped at 100). This is a screening index, not a probability of a squeeze.

Method and coverage limits

Factor percentiles compare eligible primary operating-company stocks reporting short interest at the latest settlement date (2026-08-14). The weighted mean uses short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, and fails-to-deliver 10%. Missing factors redistribute their weight; incomplete coverage is not evidence of low risk. Price, volume, and earnings boosts add 10 each, capped at 20.

Shares outstanding are not free float. Borrow fees, utilization, lendable supply, recalls, and dealer inventory are not measured. Short-sale volume does not measure the change in open shorts; fails to deliver are not a borrow-cost measurement; price vs VWAP does not establish short sellers' entry prices. Earnings can move prices in either direction.

The weights are judgment-based, not calibrated to future squeeze outcomes. The separate options assessment below does not change this universe ranking.

Options positioning & squeeze sensitivity

Nearest expiration after today within 30 calendar days; same-day expirations and later maturities are excluded.

Open interest is incomplete, stale, or dated inconsistently; positioning totals are unavailable.

Open interest has both a buyer and a seller; it does not reveal dealer hedge direction. Gross gamma sums both calls and puts without netting and uses a local 1% price-change approximation. It measures sensitivity, not predicted buying or a squeeze probability.

Assessment prepared 2026-09-08 13:22 UTC. Options model values may come from a cached snapshot; their original computation time is not supplied. Open interest has its own effective date.

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    • Short Interest History

    Settlement Date Current Position Previous Position Change Days to Cover
    2026-09-15 Scheduled
    FINRA publishes Sep 24
    		 — — — —
    2026-08-31 Scheduled
    FINRA publishes Sep 10
    		 — — — —
    2026-08-14 21,459,799 21,970,540 -510,741 10.95
    2026-07-31 21,970,540 21,491,180 +479,360 7.18
    2026-07-15 21,491,180 22,302,023 -810,843 10.64
    2026-06-30 22,302,023 22,812,489 -510,466 7.99
    2026-06-15 22,812,489 22,275,672 +536,817 14.33
    2026-05-29 22,275,672 20,983,648 +1,292,024 14.63
    2026-05-15 20,983,648 20,733,946 +249,702 16.76
    2026-04-30 20,733,946 21,704,095 -970,149 11.45
    2026-04-15 21,704,095 20,465,591 +1,238,504 13.44
    2026-03-31 20,465,591 19,103,364 +1,362,227 8.45
    2026-03-13 19,103,364 19,317,547 -214,183 6.59
    2026-02-27 19,317,547 19,152,510 +165,037 10.91
    2026-02-13 19,152,510 19,189,031 -36,521 11.52
    2026-01-30 19,189,031 18,889,124 +299,907 9.12
    2026-01-15 18,889,124 17,295,386 +1,593,738 8.32
    2025-12-31 17,295,386 14,949,400 +2,345,986 9.02
    2025-12-15 14,949,400 17,458,619 -2,509,219 3.55
    2025-11-28 17,458,619 17,111,938 +346,681 7.12
    2025-11-14 17,111,938 15,118,377 +1,993,561 6.52
    2025-10-31 15,118,377 17,097,410 -1,979,033 4.74
    2025-10-15 17,097,410 17,774,449 -677,039 7.40
    2025-09-30 17,774,449 15,303,535 +2,470,914 6.33
    2025-09-15 15,303,535 16,044,156 -740,621 7.64

    Full FINRA short interest reporting calendar

    Showing 1–23 of 23 settlements
    Key facts CIK 1818794 CUSIP 26818M108 13F (30d) 170 filings 170 filers Visit website Investor relations