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EOD US-equity data for investors and AI agents

Data is end-of-day, not real-time, and not investment advice

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MRNA short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float13.4%372,124,000 float shares
Days to Cover10.24,868,200 average daily volume
Open Short Position49,768,882Moderna, Inc. Common Stock
Change vs Previous-2,632,960-5.0%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 202649,768,882-2,632,960-5.0%10.213.4%
Jul 15, 202652,401,842-783,798-1.5%6.114.1%
Jun 30, 202653,185,640-5,479,320-9.3%4.614.3%

Short interest is an open-position snapshot published twice monthly. It is not daily short-sale volume.

Daily off-exchange short volume

FINRA-reported short-sale transaction flow for the last 30 calendar days.

Trade DateShort VolumeShort ExemptFINRA TotalShort Volume %Facilities
Aug 21, 202624,878,9214,013,53149,932,69749.8%3
Aug 20, 202628,363,2043,310,90449,269,46857.6%3
Aug 19, 202641,997,255146,09988,234,01647.6%3
Aug 18, 2026929,3322751,547,59460.1%3
Aug 17, 2026951,9293131,596,95659.6%3
Aug 14, 20261,108,03802,212,66750.1%3
Aug 13, 20261,515,6022,9842,819,38553.8%3
Aug 12, 20261,608,3874,7332,441,90665.9%3
Aug 11, 20261,635,1726,0652,729,78659.9%3
Aug 10, 20261,723,8095,2042,781,58362.0%3
Aug 7, 20261,937,3341,8912,927,65466.2%3
Aug 6, 20261,169,3212,5572,230,18752.4%3
Aug 5, 20261,034,7121,1992,028,96351.0%3
Aug 4, 2026818,8852,9811,449,88556.5%3
Aug 3, 20261,053,6384,2521,995,49752.8%3
Jul 31, 20262,070,5756,0963,373,11861.4%3
Jul 30, 20261,040,2611,2611,602,57364.9%3
Jul 29, 2026825,49302,260,48536.5%3
Jul 28, 20261,105,5191,3612,251,83549.1%3
Jul 27, 20261,119,7841621,812,60761.8%3
Jul 24, 20261,096,5886591,873,03058.5%3

Daily short volume is transaction flow reported through FINRA facilities. It does not measure open short positions and is not consolidated exchange-wide volume.