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

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MLAB short positioning

Twice-monthly snapshots of open short positions.

Settlement 2026-07-31
Short % of Float6.5%4,964,100 float shares
Days to Cover2.5129,676 average daily volume
Open Short Position324,102Mesa Laboratories, Inc. Common
Change vs Previous+49,926+18.2%

Short interest history

Twice-monthly snapshots of open short positions.

SettlementShort PositionChangeChange %Days to CoverShort % Float
Jul 31, 2026324,102+49,926+18.2%2.56.5%
Jul 15, 2026274,176-1,994-0.7%1.25.5%
Jun 30, 2026276,170+36,989+15.5%1.35.6%

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, 202629,300061,35447.8%2
Aug 20, 202649,258069,78970.6%3
Aug 19, 202662,039085,62272.5%3
Aug 18, 202650,2441065,91576.2%3
Aug 17, 202626,7645638,67469.2%3
Aug 14, 202646,842067,77269.1%3
Aug 13, 202649,054086,72356.6%3
Aug 12, 202644,496072,41461.4%3
Aug 11, 2026118,8150170,13469.8%3
Aug 10, 202622,415034,93364.2%3
Aug 7, 202616,224039,33241.2%3
Aug 6, 202617,983029,35561.3%2
Aug 5, 202615,975030,13153.0%2
Aug 4, 202621,500047,25245.5%2
Aug 3, 202623,381044,00053.1%3
Jul 31, 202624,348041,42058.8%3
Jul 30, 202614,269023,42460.9%3
Jul 29, 202625,542039,45264.7%3
Jul 28, 202625,224042,72959.0%3
Jul 27, 202614,214025,77855.1%3
Jul 24, 202616,206832,45549.9%2

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