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HowShorted

How shorted is ROCKET PHARMACEUTICALS, INC.? RCKT

#374most shorted US stockof 3,805 ranked stocks, more shorted than 90%

13.53%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.13
5 reports (~10 weeks)
−3.10
days to cover
11.10
Aggregate net short position time series for ROCKET PHARMACEUTICALS, 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 ROCKET PHARMACEUTICALS, 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 202614.12% 31 Jul 202613.11% 14 Aug 2026−1.01
7 May 202619.91% 30 Apr 202619.19% 15 May 2026−0.72
26 Feb 202613.36% 13 Feb 202612.92% 27 Feb 2026−0.44
6 Nov 202510.20% 31 Oct 202510.68% 14 Nov 2025+0.48
7 Aug 202510.43% 31 Jul 202510.87% 15 Aug 2025+0.44
8 May 202513.45% 30 Apr 202512.94% 15 May 2025−0.51
27 Feb 202512.33% 14 Feb 202512.11% 28 Feb 2025−0.22
7 Nov 202413.08% 31 Oct 202412.17% 15 Nov 2024−0.91

Fails to deliver

The SEC's fails-to-deliver figure for RCKT: 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
7
11 Sep 2026
Highest in window
31,641
14 Jan 2026
Days with a balance
45
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for ROCKET PHARMACEUTICALS, 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 32K shares.

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Sector: Healthcare · By year: 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202613.53%+0.13
31 Aug 202613.40%+0.29
14 Aug 202613.11%−1.01
31 Jul 202614.12%−1.06
15 Jul 202615.18%−1.45
30 Jun 202616.63%−3.43
15 Jun 202620.06%−0.50
29 May 202620.56%+1.37
15 May 202619.19%−0.72
30 Apr 202619.91%+2.28
15 Apr 202617.63%+0.46
31 Mar 202617.17%+3.59
13 Mar 202613.58%+0.66
27 Feb 202612.92%−0.44
13 Feb 202613.36%+0.50
30 Jan 202612.86%+0.49
15 Jan 202612.37%+0.59
31 Dec 202511.78%+0.78
15 Dec 202511.00%+0.81
28 Nov 202510.19%−0.49
14 Nov 202510.68%+0.48
31 Oct 202510.20%−1.29
15 Oct 202511.49%−1.21
30 Sep 202512.70%−1.10
15 Sep 202513.80%−0.55
29 Aug 202514.35%+3.48
15 Aug 202510.87%+0.44
31 Jul 202510.43%−1.54
15 Jul 202511.97%−0.64
30 Jun 202512.61%−0.42
13 Jun 202513.03%+1.29
30 May 202511.74%−1.20
15 May 202512.94%−0.51
30 Apr 202513.45%−1.14
15 Apr 202514.59%+0.95
31 Mar 202513.64%+1.52
14 Mar 202512.12%+0.01
28 Feb 202512.11%−0.22
14 Feb 202512.33%+0.79
31 Jan 202511.54%−1.30
15 Jan 202512.84%−1.34
31 Dec 202414.18%+1.92
13 Dec 202412.26%+0.87
29 Nov 202411.39%−0.78
15 Nov 202412.17%−0.91
31 Oct 202413.08%+0.42
15 Oct 202412.66%+0.13
30 Sep 202412.53%+0.15
13 Sep 202412.38%+0.37
30 Aug 202412.01%0.00
15 Aug 202412.01%+0.41
31 Jul 202411.60%+0.98
15 Jul 202410.62%+1.36
28 Jun 20249.26%−0.94
14 Jun 202410.20%−0.17
31 May 202410.37%−0.64
15 May 202411.01%+0.10
30 Apr 202410.91%−1.30
15 Apr 202412.21%+0.54
28 Mar 202411.67%+0.31
15 Mar 202411.36%+0.31
29 Feb 202411.05%+0.85
15 Feb 202410.20%+0.83
31 Jan 20249.37%+0.22
12 Jan 20249.15%−0.40
29 Dec 20239.55%−0.66
15 Dec 202310.21%+0.08
30 Nov 202310.13%+0.05
15 Nov 202310.08%−1.16
31 Oct 202311.24%+0.08
13 Oct 202311.16%−0.77
29 Sep 202311.93%+0.75
15 Sep 202311.18%+2.19
31 Aug 20238.99%−0.59
15 Aug 20239.58%−0.12
31 Jul 20239.70%−0.21
14 Jul 20239.91%−0.29
30 Jun 202310.20%−0.21
15 Jun 202310.41%+0.59
31 May 20239.82%−0.25
15 May 202310.07%−0.54
28 Apr 202310.61%−0.25
14 Apr 202310.86%−1.11
31 Mar 202311.97%+0.17
15 Mar 202311.80%+0.82
28 Feb 202310.98%+0.99
15 Feb 20239.99%+0.99
31 Jan 20239.00%−0.78
13 Jan 20239.78%+0.48
30 Dec 20229.30%+0.01
15 Dec 20229.29%−0.79
30 Nov 202210.08%−0.24
15 Nov 202210.32%−3.92
31 Oct 202214.24%−0.08
14 Oct 202214.32%−2.79
30 Sep 202217.11%−0.69
15 Sep 202217.80%+1.35
31 Aug 202216.45%+0.19
15 Aug 202216.26%+2.55
29 Jul 202213.71%+0.67
15 Jul 202213.04%+0.50
30 Jun 202212.54%+0.51
15 Jun 202212.03%−0.58
31 May 202212.61%+1.16
13 May 202211.45%−0.28
29 Apr 202211.73%−1.69
14 Apr 202213.42%−0.18
31 Mar 202213.60%+0.51
15 Mar 202213.09%+0.26
28 Feb 202212.83%+0.15
15 Feb 202212.68%+0.55
31 Jan 202212.13%−1.22
14 Jan 202213.35%+1.14
31 Dec 202112.21%−0.33
15 Dec 202112.54%+0.54
30 Nov 202112.00%+0.08
15 Nov 202111.92%−0.46
29 Oct 202112.38%+0.10
15 Oct 202112.28%−0.45
30 Sep 202112.73%+0.30
15 Sep 202112.43%+0.02
31 Aug 202112.41%+0.27
13 Aug 202112.14%−0.51
30 Jul 202112.65%+0.62
15 Jul 202112.03%−0.04
30 Jun 202112.07%−0.50
15 Jun 202112.57%−0.14
28 May 202112.71%−0.12
14 May 202112.83%−1.59
30 Apr 202114.42%−0.46
15 Apr 202114.88%−1.07
31 Mar 202115.95%+1.06
15 Mar 202114.89%−0.05
26 Feb 202114.94%+0.12
12 Feb 202114.82%−0.20
29 Jan 202115.02%+0.10
15 Jan 202114.92%+0.02
31 Dec 202014.90%−1.81
15 Dec 202016.71%+0.25
30 Nov 202016.46%−0.10
13 Nov 202016.56%−1.02
30 Oct 202017.58%+0.11
15 Oct 202017.47%+0.15
30 Sep 202017.32%+0.09
15 Sep 202017.23%+0.07
31 Aug 202017.16%−0.06
14 Aug 202017.22%+0.41
31 Jul 202016.81%+0.05
15 Jul 202016.76%+0.73
30 Jun 202016.03%+0.98
15 Jun 202015.05%−0.17
29 May 202015.22%+0.41
15 May 202014.81%+0.07
30 Apr 202014.74%−0.28
15 Apr 202015.02%+1.00
31 Mar 202014.02%+0.29
13 Mar 202013.73%−0.37
28 Feb 202014.10%−0.06
14 Feb 202014.16%+0.17
31 Jan 202013.99%−0.54
15 Jan 202014.53%+0.06
31 Dec 201914.47%−0.07
13 Dec 201914.54%−0.10
29 Nov 201914.64%+0.48
15 Nov 201914.16%−0.17
31 Oct 201914.33%+0.20
15 Oct 201914.13%+7.90
29 Dec 20176.23%–

Newest first. Scroll inside the table for earlier dates, back to 29 Dec 2017.

Frequently asked questions

How shorted is ROCKET PHARMACEUTICALS, INC. right now?
13.53% of ROCKET PHARMACEUTICALS, INC.'s (RCKT) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 374th 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 RCKT'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 RCKT's days to cover?
11.10 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.