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HowShorted

How shorted is Novavax, Inc.? NVAX

#21most shorted US stockof 3,805 ranked stocks, more shorted than 99%

30.24%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.66
5 reports (~10 weeks)
+2.38
days to cover
9.28
Aggregate net short position time series for Novavax, 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 Novavax, 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
6 Aug 202627.68% 31 Jul 202628.79% 14 Aug 2026+1.11
6 May 202630.09% 30 Apr 202627.54% 15 May 2026−2.55
26 Feb 202631.29% 13 Feb 202631.25% 27 Feb 2026−0.04
12 Jan 202633.68% 31 Dec 202532.79% 15 Jan 2026−0.89
6 Nov 202529.74% 31 Oct 202531.19% 14 Nov 2025+1.45
6 Aug 202526.05% 31 Jul 202523.46% 15 Aug 2025−2.59
8 May 202526.14% 30 Apr 202528.69% 15 May 2025+2.55
27 Feb 202522.13% 14 Feb 202524.39% 28 Feb 2025+2.26

Fails to deliver

The SEC's fails-to-deliver figure for NVAX: 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
11
11 Sep 2026
Highest in window
606,892
28 Aug 2026
Days with a balance
165
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Novavax, 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 607K shares.

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Sector: Healthcare · By year: 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202630.24%+0.66
31 Aug 202629.58%+0.79
14 Aug 202628.79%+1.11
31 Jul 202627.68%+1.03
15 Jul 202626.65%−1.21
30 Jun 202627.86%+0.43
15 Jun 202627.43%−0.52
29 May 202627.95%+0.41
15 May 202627.54%−2.55
30 Apr 202630.09%+1.65
15 Apr 202628.44%+0.83
31 Mar 202627.61%−2.23
13 Mar 202629.84%−1.41
27 Feb 202631.25%−0.04
13 Feb 202631.29%−0.21
30 Jan 202631.50%−1.29
15 Jan 202632.79%−0.89
31 Dec 202533.68%+1.32
15 Dec 202532.36%+0.45
28 Nov 202531.91%+0.72
14 Nov 202531.19%+1.45
31 Oct 202529.74%+1.52
15 Oct 202528.22%+1.47
30 Sep 202526.75%−0.79
15 Sep 202527.54%+0.53
29 Aug 202527.01%+3.55
15 Aug 202523.46%−2.59
31 Jul 202526.05%−0.55
15 Jul 202526.60%−2.14
30 Jun 202528.74%+1.28
13 Jun 202527.46%−0.14
30 May 202527.60%−1.09
15 May 202528.69%+2.55
30 Apr 202526.14%+0.63
15 Apr 202525.51%+2.58
31 Mar 202522.93%−0.42
14 Mar 202523.35%−1.04
28 Feb 202524.39%+2.26
14 Feb 202522.13%+0.32
31 Jan 202521.81%−1.96
15 Jan 202523.77%+0.72
31 Dec 202423.05%−1.40
13 Dec 202424.45%−0.39
29 Nov 202424.84%−1.07
15 Nov 202425.91%+0.95
31 Oct 202424.96%+2.65
15 Oct 202422.31%+1.15
30 Sep 202421.16%+0.22
13 Sep 202420.94%+1.20
30 Aug 202419.74%+0.69
15 Aug 202419.05%+1.09
31 Jul 202417.96%−4.40
15 Jul 202422.36%+1.33
28 Jun 202421.03%−7.25
14 Jun 202428.28%+1.06
31 May 202427.22%−5.04
15 May 202432.26%+0.26
30 Apr 202432.00%+0.73
15 Apr 202431.27%−0.10
28 Mar 202431.37%−3.02
15 Mar 202434.39%−3.29
29 Feb 202437.68%−8.47
15 Feb 202446.15%+2.30
31 Jan 202443.85%+0.99
12 Jan 202442.86%+1.45
29 Dec 202341.41%+3.07
15 Dec 202338.34%+2.05
30 Nov 202336.29%+1.65
15 Nov 202334.64%−3.17
31 Oct 202337.81%−7.73
13 Oct 202345.54%−1.53
29 Sep 202347.07%−0.06
15 Sep 202347.13%+4.67
31 Aug 202342.46%+0.30
15 Aug 202342.16%+3.02
31 Jul 202339.14%−3.37
14 Jul 202342.51%+0.28
30 Jun 202342.23%+6.50
15 Jun 202335.73%+0.93
31 May 202334.80%−2.19
15 May 202336.99%−2.00
28 Apr 202338.99%−0.64
14 Apr 202339.63%−4.20
31 Mar 202343.83%+5.25
15 Mar 202338.58%−1.00
28 Feb 202339.58%−1.25
15 Feb 202340.83%+1.55
31 Jan 202339.28%−0.09
13 Jan 202339.37%+0.63
30 Dec 202238.74%+7.57
15 Dec 202231.17%+1.14
30 Nov 202230.03%+1.26
15 Nov 202228.77%+0.18
31 Oct 202228.59%+1.28
14 Oct 202227.31%+2.38
30 Sep 202224.93%+3.17
15 Sep 202221.76%+1.79
31 Aug 202219.97%+0.16
15 Aug 202219.81%−1.09
29 Jul 202220.90%+1.71
15 Jul 202219.19%+0.28
30 Jun 202218.91%−1.22
15 Jun 202220.13%+4.64
31 May 202215.49%−2.80
13 May 202218.29%+2.33
29 Apr 202215.96%+0.08
14 Apr 202215.88%+1.60
31 Mar 202214.28%+1.01
15 Mar 202213.27%+0.63
28 Feb 202212.64%+0.11
15 Feb 202212.53%+0.33
31 Jan 202212.20%−0.50
14 Jan 202212.70%+0.90
31 Dec 202111.80%+0.73
15 Dec 202111.07%+0.83
30 Nov 202110.24%−1.15
15 Nov 202111.39%+0.32
29 Oct 202111.07%+2.80
15 Oct 20218.27%+0.12
30 Sep 20218.15%−0.82
15 Sep 20218.97%+0.81
31 Aug 20218.16%−1.48
13 Aug 20219.64%+1.69
30 Jul 20217.95%−0.22
15 Jul 20218.17%−0.03
30 Jun 20218.20%+0.38
15 Jun 20217.82%−0.02
28 May 20217.84%+0.77
14 May 20217.07%+1.06
30 Apr 20216.01%−0.35
15 Apr 20216.36%+0.55
31 Mar 20215.81%−0.89
15 Mar 20216.70%−0.52
26 Feb 20217.22%−2.41
12 Feb 20219.63%−0.11
29 Jan 20219.74%−1.21
15 Jan 202110.95%−0.56
31 Dec 202011.51%+0.15
15 Dec 202011.36%−2.74
30 Nov 202014.10%+0.42
13 Nov 202013.68%+0.62
30 Oct 202013.06%+0.93
15 Oct 202012.13%−0.63
30 Sep 202012.76%−0.64
15 Sep 202013.40%−0.44
31 Aug 202013.84%+0.78
14 Aug 202013.06%−0.07
31 Jul 202013.13%−2.65
15 Jul 202015.78%−2.65
30 Jun 202018.43%+2.69
15 Jun 202015.74%+1.39
29 May 202014.35%+0.06
15 May 202014.29%+3.21
30 Apr 202011.08%+3.91
15 Apr 20207.17%+0.31
31 Mar 20206.86%−3.59
13 Mar 202010.45%−8.87
28 Feb 202019.32%−3.35
14 Feb 202022.67%+0.68
31 Jan 202021.99%+2.99
15 Jan 202019.00%−1.41
31 Dec 201920.41%+1.75
13 Dec 201918.66%+0.43
29 Nov 201918.23%+0.57
15 Nov 201917.66%+0.03
31 Oct 201917.63%−1.37
15 Oct 201919.00%−1.54
30 Sep 201920.54%+0.08
13 Sep 201920.46%+0.33
30 Aug 201920.13%−1.21
15 Aug 201921.34%−0.39
31 Jul 201921.73%+2.97
30 Apr 201918.76%−3.02
15 Apr 201921.78%+0.94
29 Mar 201920.84%−0.57
15 Mar 201921.41%+0.73
28 Feb 201920.68%+1.74
15 Feb 201918.94%+2.28
31 Jan 201916.66%+0.66
15 Jan 201916.00%+0.78
31 Dec 201815.22%+1.25
14 Dec 201813.97%−0.97
30 Nov 201814.94%+0.59
15 Nov 201814.35%−1.10
31 Oct 201815.45%−0.89
15 Oct 201816.34%+0.76
28 Sep 201815.58%+1.12
14 Sep 201814.46%−0.02
31 Aug 201814.48%+0.36
15 Aug 201814.12%−2.34
31 Jul 201816.46%+0.39
13 Jul 201816.07%+0.80
29 Jun 201815.27%+0.68
15 Jun 201814.59%+0.10
31 May 201814.49%−0.29
15 May 201814.78%−0.52
30 Apr 201815.30%−0.60
13 Apr 201815.90%−0.41
29 Mar 201816.31%+1.50
15 Mar 201814.81%−0.69
28 Feb 201815.50%+0.81
15 Feb 201814.69%+0.56
31 Jan 201814.13%−0.12
12 Jan 201814.25%+0.58
29 Dec 201713.67%–

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

Frequently asked questions

How shorted is Novavax, Inc. right now?
30.24% of Novavax, Inc.'s (NVAX) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 21st 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 NVAX'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 NVAX's days to cover?
9.28 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.