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HowShorted

How shorted is Magnite, Inc.? MGNI

#991most shorted US stockof 3,805 ranked stocks, more shorted than 73%

7.97%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.32
5 reports (~10 weeks)
−2.30
days to cover
5.25
Aggregate net short position time series for Magnite, 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 Magnite, 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
5 Aug 20268.11% 31 Jul 20267.79% 14 Aug 2026−0.32
6 May 20268.48% 30 Apr 20268.53% 15 May 2026+0.05
25 Feb 20268.99% 13 Feb 20268.01% 27 Feb 2026−0.98
5 Nov 202510.71% 31 Oct 202510.88% 14 Nov 2025+0.17
6 Aug 202510.69% 31 Jul 202510.51% 15 Aug 2025−0.18
7 May 202511.73% 30 Apr 202511.37% 15 May 2025−0.36
26 Feb 20257.41% 14 Feb 20257.83% 28 Feb 2025+0.42
7 Nov 20246.14% 31 Oct 20245.56% 15 Nov 2024−0.58

Fails to deliver

The SEC's fails-to-deliver figure for MGNI: 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
235,687
11 Sep 2026
Highest in window
235,687
11 Sep 2026
Days with a balance
174
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Magnite, 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 236K shares.

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Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20267.97%+0.32
31 Aug 20267.65%−0.14
14 Aug 20267.79%−0.32
31 Jul 20268.11%−1.39
15 Jul 20269.50%−0.77
30 Jun 202610.27%+0.90
15 Jun 20269.37%+0.89
29 May 20268.48%−0.05
15 May 20268.53%+0.05
30 Apr 20268.48%+0.59
15 Apr 20267.89%+0.34
31 Mar 20267.55%−0.08
13 Mar 20267.63%−0.38
27 Feb 20268.01%−0.98
13 Feb 20268.99%−0.81
30 Jan 20269.80%−0.83
15 Jan 202610.63%+0.96
31 Dec 20259.67%+0.36
15 Dec 20259.31%+0.50
28 Nov 20258.81%−2.07
14 Nov 202510.88%+0.17
31 Oct 202510.71%+0.94
15 Oct 20259.77%−0.50
30 Sep 202510.27%+0.12
15 Sep 202510.15%−0.05
29 Aug 202510.20%−0.31
15 Aug 202510.51%−0.18
31 Jul 202510.69%−2.73
15 Jul 202513.42%−1.16
30 Jun 202514.58%+0.77
13 Jun 202513.81%+2.29
30 May 202511.52%+0.15
15 May 202511.37%−0.36
30 Apr 202511.73%+1.73
15 Apr 202510.00%+0.72
31 Mar 20259.28%+0.63
14 Mar 20258.65%+0.82
28 Feb 20257.83%+0.42
14 Feb 20257.41%+0.82
31 Jan 20256.59%+0.35
15 Jan 20256.24%+0.45
31 Dec 20245.79%+0.13
13 Dec 20245.66%−0.31
29 Nov 20245.97%+0.41
15 Nov 20245.56%−0.58
31 Oct 20246.14%−0.12
15 Oct 20246.26%−0.08
30 Sep 20246.34%+0.23
13 Sep 20246.11%−0.09
30 Aug 20246.20%+0.29
15 Aug 20245.91%+0.64
31 Jul 20245.27%+0.31
15 Jul 20244.96%+0.22
28 Jun 20244.74%−0.34
14 Jun 20245.08%+0.61
31 May 20244.47%+0.47
15 May 20244.00%−0.10
30 Apr 20244.10%−0.15
15 Apr 20244.25%−0.13
28 Mar 20244.38%+0.07
15 Mar 20244.31%−0.09
29 Feb 20244.40%+0.33
15 Feb 20244.07%−0.62
31 Jan 20244.69%−0.36
12 Jan 20245.05%−0.25
29 Dec 20235.30%+0.24
15 Dec 20235.06%−0.37
30 Nov 20235.43%−0.12
15 Nov 20235.55%+0.10
31 Oct 20235.45%−0.19
13 Oct 20235.64%+0.22
29 Sep 20235.42%+0.13
15 Sep 20235.29%−0.10
31 Aug 20235.39%−0.04
15 Aug 20235.43%−0.11
31 Jul 20235.54%−0.53
14 Jul 20236.07%+0.14
30 Jun 20235.93%−0.67
15 Jun 20236.60%+0.06
31 May 20236.54%−0.12
15 May 20236.66%+0.58
28 Apr 20236.08%+0.13
14 Apr 20235.95%+0.18
31 Mar 20235.77%−0.28
15 Mar 20236.05%−0.65
28 Feb 20236.70%+0.85
15 Feb 20235.85%+0.20
31 Jan 20235.65%−1.27
13 Jan 20236.92%+0.89
30 Dec 20226.03%+0.59
15 Dec 20225.44%+0.07
30 Nov 20225.37%−1.70
15 Nov 20227.07%+0.02
31 Oct 20227.05%−0.28
14 Oct 20227.33%+0.15
30 Sep 20227.18%+0.44
15 Sep 20226.74%+0.16
31 Aug 20226.58%+0.30
15 Aug 20226.28%−0.22
29 Jul 20226.50%−0.37
15 Jul 20226.87%+0.55
30 Jun 20226.32%−1.22
15 Jun 20227.54%+0.18
31 May 20227.36%+0.07
13 May 20227.29%−0.29
29 Apr 20227.58%+0.28
14 Apr 20227.30%−0.06
31 Mar 20227.36%−0.45
15 Mar 20227.81%−0.23
28 Feb 20228.04%−0.50
15 Feb 20228.54%+0.01
31 Jan 20228.53%+1.07
14 Jan 20227.46%+0.58
31 Dec 20216.88%−0.39
15 Dec 20217.27%−0.63
30 Nov 20217.90%+0.53
15 Nov 20217.37%−1.51
29 Oct 20218.88%+0.22
15 Oct 20218.66%−0.08
30 Sep 20218.74%−0.18
15 Sep 20218.92%−0.05
31 Aug 20218.97%−0.24
13 Aug 20219.21%−0.05
30 Jul 20219.26%+0.17
15 Jul 20219.09%−0.31
30 Jun 20219.40%−0.83
15 Jun 202110.23%+0.25
28 May 20219.98%+1.45
14 May 20218.53%−0.68
30 Apr 20219.21%+0.68
15 Apr 20218.53%−0.28
31 Mar 20218.81%+0.36
15 Mar 20218.45%+0.41
26 Feb 20218.04%+0.32
12 Feb 20217.72%−3.62
29 Jan 202111.34%−1.44
15 Jan 202112.78%+3.16
31 Dec 20209.62%−1.90
15 Dec 202011.52%−1.82
30 Nov 202013.34%+0.83
13 Nov 202012.51%−0.02
30 Oct 202012.53%+1.00
15 Oct 202011.53%−0.59
30 Sep 202012.12%+1.11
15 Sep 202011.01%−0.31
31 Aug 202011.32%−0.15
14 Aug 202011.47%+0.23
31 Jul 202011.24%+0.85
15 Jul 202010.39%+0.31
30 Jun 202010.08%+1.40
15 Jun 20208.68%+1.25
29 May 20207.43%+0.76
15 May 20206.67%−3.26
30 Apr 20209.93%+2.17
15 Apr 20207.76%+2.17
31 Mar 20205.59%−2.90
13 Mar 20208.49%+1.75
28 Feb 20206.74%−0.67
14 Feb 20207.41%+0.53
31 Jan 20206.88%+0.38
15 Jan 20206.50%+1.31
31 Dec 20195.19%+0.09
13 Dec 20195.10%+0.87
29 Nov 20194.23%+0.12
15 Nov 20194.11%+0.56
31 Oct 20193.55%+0.54
15 Oct 20193.01%−0.43
30 Sep 20193.44%0.00
13 Sep 20193.44%+1.00
30 Aug 20192.44%+0.05
15 Aug 20192.39%−0.43
31 Jul 20192.82%−0.14
15 Jul 20192.96%+1.18
28 Jun 20191.78%+0.56
14 Jun 20191.22%−0.48
31 May 20191.70%+0.80
15 May 20190.90%−0.06
30 Apr 20190.96%−0.29
15 Apr 20191.25%+0.46
29 Mar 20190.79%−0.63
15 Mar 20191.42%+0.65
28 Feb 20190.77%−0.31
15 Feb 20191.08%+0.42
31 Jan 20190.66%+0.12
15 Jan 20190.54%−0.02
31 Dec 20180.56%−0.14
14 Dec 20180.70%+0.02
30 Nov 20180.68%−0.21
15 Nov 20180.89%+0.26
31 Oct 20180.63%+0.20
15 Oct 20180.43%−0.20
28 Sep 20180.63%−0.24
14 Sep 20180.87%+0.06
31 Aug 20180.81%−0.08
15 Aug 20180.89%−0.02
31 Jul 20180.91%−3.24
15 Jun 20184.15%−0.52
31 May 20184.67%−0.51
15 May 20185.18%0.00
30 Apr 20185.18%+0.33
13 Apr 20184.85%+0.82
29 Mar 20184.03%+1.06
15 Mar 20182.97%+0.19
28 Feb 20182.78%+0.19
15 Feb 20182.59%+0.91
31 Jan 20181.68%−0.01
12 Jan 20181.69%−0.04
29 Dec 20171.73%–

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

Frequently asked questions

How shorted is Magnite, Inc. right now?
7.97% of Magnite, Inc.'s (MGNI) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 991st 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 MGNI'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 MGNI's days to cover?
5.25 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.