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3,722,208
Biweekly short interest, shares short, from NASDAQ.
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Aeluma Inc Short Interest Snapshot

Aeluma Inc (ALMU) has 3,722,208 shares short (19.27% of shares outstanding), roughly flat (+2.8%) from the prior period. The data is biweekly short interest reported to NASDAQ, with a built-in 2-week reporting lag — the same canonical figure short-interest trackers publish.

Shares Short
3,722,208
as of Sep 30, 2026
% of Outstanding
19.27%
short ÷ shares outstanding
Days to Cover
4.59
on 811,378 avg daily volume
vs Prior Period
+2.8%

Recent ALMU Short Interest Settlements

Each row is a biweekly snapshot — the cadence at which short interest is officially reported. The percent column is the change versus the prior settlement.

Settlement Date Shares Short vs Prior Days to Cover
Sep 30, 2026 3,722,208 4.59
Sep 15, 2026 3,622,378 8.86
Aug 31, 2026 3,706,486 7.66
Aug 14, 2026 3,592,686 7.67
Jul 31, 2026 3,831,587 7.38
Jul 15, 2026 3,580,040 7.20
Jun 30, 2026 3,473,457 5.03
Jun 15, 2026 3,036,966 2.45

Is Aeluma Inc Heavily Shorted?

"Days to cover" is the number of average trading days it would take shorts to buy back their position at recent volume. For ALMU, that’s currently 4.59 days against 811,378 shares of average daily volume. Days to cover above 3 is above-average short pressure for a liquid name, though comfortably below classic squeeze territory.

ALMU Short Interest in Context

Short interest is most useful read against the rest of the picture. Heavy shorting that lines up with insider selling and weakening Employee Business Outlook is a different story from heavy shorting with insider buying and a positive AI Score — the same number, very different setups.

The other signals on ALMU right now:

Read together, the picture is mixed — no decisive read from short interest plus the underlying signals. Worth tracking which side moves first.

For the other side of the position, see ALMU insider transactions and congressional trades. For social-side conviction, see ALMU overall sentiment and Reddit mentions.

Aeluma Inc Short Interest: Frequently Asked Questions

Aeluma Inc has 3,722,208 shares short — about 19.27% of its shares outstanding as of Sep 30, 2026. This figure is the official biweekly short interest report, which lags the settlement date by about two weeks — the same convention every short-interest tracker uses. (Note: "% of shares outstanding" runs slightly below the "% of float" you may see on MarketBeat or Fintel, since float excludes insider-held and restricted shares.)

At 3,722,208 shares short and 811,378 shares of average daily volume, ALMU’s days-to-cover is 4.59. Days to cover above 3 is above-average short pressure for a liquid name, though comfortably below classic squeeze territory.

Short squeezes happen when heavily shorted stocks rally sharply, forcing shorts to buy back at higher prices. The classic warning signs are days-to-cover above ~5, rising short interest, and a catalyst that pushes price up. ALMU’s days-to-cover at 4.59 is below the classic ~5-day threshold. AltIndex tracks short interest alongside insider activity and sentiment — the same number reads very differently depending on what those other signals say.

The biweekly short interest figures come from NASDAQ’s official short interest report — the same source used by MarketBeat, Fintel, and Benzinga. The data is settlement-date-based, published twice a month, and lags about two weeks. For daily short-selling activity (a higher-frequency complement), see the short squeeze tracker.

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The analytics provided are estimates and not a substitute for professional advice. All investments involve risks, including possible capital loss.