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HowShorted

How shorted is Quantum Computing Inc.? QUBT

#26most shorted US stockof 3,805 ranked stocks, more shorted than 99%

28.59%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
0.00
5 reports (~10 weeks)
+0.36
days to cover
11.27
Aggregate net short position time series for Quantum Computing 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 Quantum Computing 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
10 Aug 202628.64% 31 Jul 202628.31% 14 Aug 2026−0.33
11 May 202626.53% 30 Apr 202626.19% 15 May 2026−0.34
2 Mar 202625.24% 27 Feb 202626.24% 13 Mar 2026+1.00
14 Nov 202520.24% 31 Oct 202520.09% 28 Nov 2025−0.15
11 Jun 20243.50% 31 May 20244.03% 14 Jun 2024+0.53

Fails to deliver

The SEC's fails-to-deliver figure for QUBT: 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.

Latest balance
460,606
14 Sep 2026
Highest in window
7,116,763
14 Oct 2025
Days with a balance
193
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Quantum Computing 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 7.1M shares.

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Sector: Technology · By year: 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202628.59%0.00
31 Aug 202628.59%+0.28
14 Aug 202628.31%−0.33
31 Jul 202628.64%−0.17
15 Jul 202628.81%+0.58
30 Jun 202628.23%+2.10
15 Jun 202626.13%−0.29
29 May 202626.42%+0.23
15 May 202626.19%−0.34
30 Apr 202626.53%+2.18
15 Apr 202624.35%−1.12
31 Mar 202625.47%−0.77
13 Mar 202626.24%+1.00
27 Feb 202625.24%−1.44
13 Feb 202626.68%+2.00
30 Jan 202624.68%+2.79
15 Jan 202621.89%+0.19
31 Dec 202521.70%+1.47
15 Dec 202520.23%+0.14
28 Nov 202520.09%+0.13
14 Nov 202519.96%−0.28
31 Oct 202520.24%−2.53
15 Oct 202522.77%−1.30
30 Sep 202524.07%+6.95
15 Sep 202517.12%+0.74
29 Aug 202516.38%−2.92
15 Aug 202519.30%−0.61
31 Jul 202519.91%−2.23
15 Jul 202522.14%−3.05
30 Jun 202525.19%+5.19
13 Jun 202520.00%+0.31
30 May 202519.69%+0.59
15 May 202519.10%+3.40
30 Apr 202515.70%+0.57
15 Apr 202515.13%−2.08
31 Mar 202517.21%+12.44
31 Oct 20244.77%+1.53
15 Oct 20243.24%+0.02
30 Sep 20243.22%+0.95
13 Sep 20242.27%−0.81
30 Aug 20243.08%+0.15
15 Aug 20242.93%−0.22
31 Jul 20243.15%+0.25
15 Jul 20242.90%−0.66
28 Jun 20243.56%−0.47
14 Jun 20244.03%+0.53
31 May 20243.50%−0.36
15 May 20243.86%−0.54
30 Apr 20244.40%+0.89
15 Apr 20243.51%+0.06
28 Mar 20243.45%−1.06
15 Mar 20244.51%−0.51
29 Feb 20245.02%+2.11
15 Feb 20242.91%+0.58
31 Jan 20242.33%+0.10
12 Jan 20242.23%+0.03
29 Dec 20232.20%−0.68
15 Dec 20232.88%+0.19
30 Nov 20232.69%+0.29
15 Nov 20232.40%−0.12
31 Oct 20232.52%−0.66
13 Oct 20233.18%+1.02
29 Sep 20232.16%−0.65
15 Sep 20232.81%−0.80
31 Aug 20233.61%−2.25
15 Aug 20235.86%+2.26
31 Jul 20233.60%+0.76
14 Jul 20232.84%+0.61
30 Jun 20232.23%+0.05
15 Jun 20232.18%−0.98
31 May 20233.16%+1.21
15 May 20231.95%−0.28
28 Apr 20232.23%−0.35
14 Apr 20232.58%+0.22
31 Mar 20232.36%+1.46
31 Jan 20230.90%−0.20
13 Jan 20231.10%−0.08
30 Dec 20221.18%0.00
15 Dec 20221.18%−0.17
30 Nov 20221.35%+0.01
15 Nov 20221.34%−0.96
31 Oct 20222.30%+0.12
14 Oct 20222.18%+0.53
30 Sep 20221.65%+0.53
15 Sep 20221.12%−0.21
31 Aug 20221.33%+0.07
15 Aug 20221.26%−0.41
29 Jul 20221.67%+0.21
15 Jul 20221.46%+0.11
30 Jun 20221.35%−0.31
15 Jun 20221.66%−0.24
31 May 20221.90%+1.02
13 May 20220.88%+0.02
29 Apr 20220.86%−0.34
14 Apr 20221.20%−0.14
31 Mar 20221.34%−0.36
15 Mar 20221.70%−0.12
28 Feb 20221.82%−0.28
15 Feb 20222.10%−0.09
31 Jan 20222.19%−0.47
14 Jan 20222.66%+0.36
31 Dec 20212.30%−0.75
15 Dec 20213.05%−0.32
30 Nov 20213.37%+1.24
15 Nov 20212.13%+0.62
29 Oct 20211.51%−0.80
15 Oct 20212.31%−0.24
30 Sep 20212.55%+0.88
15 Sep 20211.67%+0.23
31 Aug 20211.44%+0.81
13 Aug 20210.63%+0.09
30 Jul 20210.54%+0.25
15 Jul 20210.29%–

Newest first. Scroll inside the table for earlier dates, back to 15 Jul 2021.

Frequently asked questions

How shorted is Quantum Computing Inc. right now?
28.59% of Quantum Computing Inc.'s (QUBT) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 26th 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 QUBT'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 QUBT's days to cover?
11.27 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.