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HowShorted

How shorted is Sidus Space Inc.? SIDU

#237most shorted US stockof 3,805 ranked stocks, more shorted than 93%

16.53%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−2.66
5 reports (~10 weeks)
−10.06
days to cover
5.11
Aggregate net short position time series for Sidus Space Inc.

Markers along the chart's base: ▲ results announced (an 8-K reporting results was filed) ▲ quarterly or annual report filed. Dates are SEC filing dates; hover a point to see events since the previous settlement.

Days to cover

FINRA's own figure: reported shares short divided by the stock's average daily trading volume, published alongside each settlement. It expresses the short position in days of typical trading rather than as a percentage of the company; the two can move differently.

Aggregate net short position time series for Sidus Space Inc. days to cover

Short interest around results

For each results announcement (an 8-K reporting results, by its SEC filing date), the FINRA settlement before it and the first one after. Settlements fall twice a month, so the two figures can sit up to a month apart and much else changes in between: this shows what was reported, not why.

Reported short interest before and after each results announcement
Results filedSettlement beforeSettlement afterChange
14 Aug 202631.82% 31 Jul 202619.19% 31 Aug 2026−12.63
15 May 202610.90% 30 Apr 20269.05% 29 May 2026−1.85
1 Apr 202611.16% 31 Mar 202615.64% 15 Apr 2026+4.48
14 Nov 20253.72% 31 Oct 20258.40% 28 Nov 2025+4.68
14 Aug 20257.95% 31 Jul 20255.98% 15 Aug 2025−1.97
15 May 20254.99% 30 Apr 20256.24% 30 May 2025+1.25
15 Nov 20230.95% 31 Oct 20232.34% 30 Nov 2023+1.39
15 May 20235.59% 14 Apr 20230.89% 31 May 2023−4.70

Fails to deliver

The SEC's fails-to-deliver figure for SIDU: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
3,880
11 Sep 2026
Highest in window
3,926,911
23 Dec 2025
Days with a balance
164
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Sidus Space Inc. fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 3.9M shares.

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Sector: Media & telecom · By year: 2022 · 2023 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202616.53%−2.66
31 Aug 202619.19%−5.56
14 Aug 202624.75%−7.07
31 Jul 202631.82%−0.10
15 Jul 202631.92%+5.33
30 Jun 202626.59%+6.45
15 Jun 202620.14%+11.09
29 May 20269.05%−0.67
15 May 20269.72%−1.18
30 Apr 202610.90%−4.74
15 Apr 202615.64%+4.48
31 Mar 202611.16%−8.26
13 Mar 202619.42%−3.34
27 Feb 202622.76%−4.55
13 Feb 202627.31%+2.95
30 Jan 202624.36%+8.53
15 Jan 202615.83%−8.25
31 Dec 202524.08%+9.42
15 Dec 202514.66%+6.26
28 Nov 20258.40%+1.75
14 Nov 20256.65%+2.93
31 Oct 20253.72%−1.13
15 Oct 20254.85%−5.34
30 Sep 202510.19%+6.00
29 Aug 20254.19%−1.79
15 Aug 20255.98%−1.97
31 Jul 20257.95%+2.91
15 Jul 20255.04%+0.08
30 Jun 20254.96%−0.87
13 Jun 20255.83%−0.41
30 May 20256.24%+1.60
15 May 20254.64%−0.35
30 Apr 20254.99%−0.77
15 Apr 20255.76%−1.04
31 Mar 20256.80%−85.88
13 Sep 202492.68%+86.42
15 May 20246.26%−0.14
30 Apr 20246.40%−1.15
15 Apr 20247.55%−0.45
28 Mar 20248.00%+2.52
15 Dec 20235.48%+3.14
30 Nov 20232.34%−1.12
15 Nov 20233.46%+2.51
31 Oct 20230.95%−1.20
13 Oct 20232.15%+0.03
29 Sep 20232.12%−1.31
15 Sep 20233.43%+1.58
15 Aug 20231.85%+0.96
31 May 20230.89%−0.27
15 May 20231.16%−4.43
14 Apr 20235.59%+2.87
31 Mar 20232.72%−0.24
15 Mar 20232.96%+1.81
30 Dec 20221.15%+0.28
15 Dec 20220.87%+0.20
30 Nov 20220.67%−0.15
15 Nov 20220.82%+0.08
31 Oct 20220.74%−0.31
14 Oct 20221.05%−0.13
30 Sep 20221.18%−0.25
15 Sep 20221.43%−0.17
31 Aug 20221.60%−0.02
15 Aug 20221.62%−0.17
29 Jul 20221.79%+0.85
15 Jul 20220.94%+0.46
15 Jun 20220.48%−0.14
31 May 20220.62%−0.54
13 May 20221.16%+0.61
29 Apr 20220.55%−0.43
14 Apr 20220.98%–

Newest first. Scroll inside the table for earlier dates, back to 14 Apr 2022.

Frequently asked questions

How shorted is Sidus Space Inc. right now?
16.53% of Sidus Space Inc.'s (SIDU) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 237th most shorted US stock, out of 3,805 we rank.
What does this number include?
FINRA member firms must report their short positions in all US equities twice a month; FINRA consolidates them per security. We divide that official share count by the company's shares outstanding from its SEC filings. This is the regulatory figure, not a daily estimate.
Why does it only update twice a month?
US short interest is reported for settlement on the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. That cadence is set by regulation; no daily official figure exists.
Is this SIDU's short float?
No. This is short interest as a percentage of shares outstanding, the count in the company's SEC filings. "Short float" divides the same FINRA short count by the public float, which excludes closely held shares, so it comes out higher for the same company. We publish no float estimates: the float is not a regulatory figure.
What is SIDU's days to cover?
5.11 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume. It is published in the same FINRA file and shown verbatim; we hold no volume data ourselves.
Which funds are short?
US public short interest is aggregate-only: individual short sellers are not named. Only some EU markets publish named positions.