Skip to content
HowShorted

How shorted is MongoDB, Inc.? MDB

#2,225most shorted US stockof 3,805 ranked stocks, more shorted than 41%

3.57%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.09
5 reports (~10 weeks)
−1.26
days to cover
1.13
Aggregate net short position time series for MongoDB, 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 MongoDB, 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
1 Sep 20263.66% 31 Aug 20263.57% 15 Sep 2026−0.09
28 May 20264.84% 15 May 20264.42% 29 May 2026−0.42
2 Mar 20264.15% 27 Feb 20264.48% 13 Mar 2026+0.33
1 Dec 20254.30% 28 Nov 20254.48% 15 Dec 2025+0.18
3 Nov 20254.70% 31 Oct 20254.83% 14 Nov 2025+0.13
26 Aug 20256.15% 15 Aug 20258.14% 29 Aug 2025+1.99
4 Jun 20253.33% 30 May 20254.18% 13 Jun 2025+0.85
5 Mar 20252.22% 28 Feb 20254.08% 14 Mar 2025+1.86

Fails to deliver

The SEC's fails-to-deliver figure for MDB: 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
1,539
14 Sep 2026
Highest in window
35,282
7 Oct 2025
Days with a balance
81
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for MongoDB, 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 35K shares.

Embed this chart

Paste this snippet to embed the interactive chart. It updates with each FINRA report and keeps the source attribution. Preview

Download chart cardShare on XRedditLinkedIn
Cite this page
Plain
Wikipedia
BibTeX

Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20263.57%−0.09
31 Aug 20263.66%+0.13
14 Aug 20263.53%+0.30
31 Jul 20263.23%−0.30
15 Jul 20263.53%−1.30
30 Jun 20264.83%+0.07
15 Jun 20264.76%+0.34
29 May 20264.42%−0.42
15 May 20264.84%+0.59
30 Apr 20264.25%+0.24
15 Apr 20264.01%+0.33
31 Mar 20263.68%−0.80
13 Mar 20264.48%+0.33
27 Feb 20264.15%−0.44
13 Feb 20264.59%+0.28
30 Jan 20264.31%−0.13
15 Jan 20264.44%+0.30
31 Dec 20254.14%−0.34
15 Dec 20254.48%+0.18
28 Nov 20254.30%−0.53
14 Nov 20254.83%+0.13
31 Oct 20254.70%+1.04
15 Oct 20253.66%−2.08
30 Sep 20255.74%−1.49
15 Sep 20257.23%−0.91
29 Aug 20258.14%+1.99
15 Aug 20256.15%+0.68
31 Jul 20255.47%+0.92
15 Jul 20254.55%+0.73
30 Jun 20253.82%−0.36
13 Jun 20254.18%+0.85
30 May 20253.33%−0.56
15 May 20253.89%+0.42
30 Apr 20253.47%−1.18
15 Apr 20254.65%+0.11
31 Mar 20254.54%+0.46
14 Mar 20254.08%+1.86
28 Feb 20252.22%−0.63
14 Feb 20252.85%+0.23
31 Jan 20252.62%+0.19
15 Jan 20252.43%+0.14
31 Dec 20242.29%−1.85
13 Dec 20244.14%−2.09
29 Nov 20246.23%+0.41
15 Nov 20245.82%+0.01
31 Oct 20245.81%+1.17
15 Oct 20244.64%+0.06
30 Sep 20244.58%−0.65
13 Sep 20245.23%+0.01
30 Aug 20245.22%−0.86
15 Aug 20246.08%−0.27
31 Jul 20246.35%−0.34
15 Jul 20246.69%−0.26
28 Jun 20246.95%+0.58
14 Jun 20246.37%+0.19
31 May 20246.18%+0.36
15 May 20245.82%−0.51
30 Apr 20246.33%+0.90
15 Apr 20245.43%+0.27
28 Mar 20245.16%+0.69
15 Mar 20244.47%+0.17
29 Feb 20244.30%−0.28
15 Feb 20244.58%−0.21
31 Jan 20244.79%−0.89
12 Jan 20245.68%+0.31
29 Dec 20235.37%−0.03
15 Dec 20235.40%+0.45
30 Nov 20234.95%+0.24
15 Nov 20234.71%−0.44
31 Oct 20235.15%+0.72
13 Oct 20234.43%−0.17
29 Sep 20234.60%−0.41
15 Sep 20235.01%−0.52
31 Aug 20235.53%−0.53
15 Aug 20236.06%+0.47
31 Jul 20235.59%−0.03
14 Jul 20235.62%+0.08
30 Jun 20235.54%+0.21
15 Jun 20235.33%+0.26
31 May 20235.07%−0.33
15 May 20235.40%+0.06
28 Apr 20235.34%+0.26
14 Apr 20235.08%−0.29
31 Mar 20235.37%−0.10
15 Mar 20235.47%+0.31
28 Feb 20235.16%−0.86
15 Feb 20236.02%−0.78
31 Jan 20236.80%+0.30
13 Jan 20236.50%−0.33
30 Dec 20226.83%−0.04
15 Dec 20226.87%+0.31
30 Nov 20226.56%+0.88
15 Nov 20225.68%+0.05
31 Oct 20225.63%+0.05
14 Oct 20225.58%−0.57
30 Sep 20226.15%+0.15
15 Sep 20226.00%+0.86
31 Aug 20225.14%−0.06
15 Aug 20225.20%−0.33
29 Jul 20225.53%−0.16
15 Jul 20225.69%−0.59
30 Jun 20226.28%−0.09
15 Jun 20226.37%−0.51
31 May 20226.88%+0.03
13 May 20226.85%+0.75
29 Apr 20226.10%−0.15
14 Apr 20226.25%+0.26
31 Mar 20225.99%+0.17
15 Mar 20225.82%−0.14
28 Feb 20225.96%−0.78
15 Feb 20226.74%+0.42
31 Jan 20226.32%−0.41
14 Jan 20226.73%−0.31
31 Dec 20217.04%−0.14
15 Dec 20217.18%+0.31
30 Nov 20216.87%−0.08
15 Nov 20216.95%+0.18
29 Oct 20216.77%−0.77
15 Oct 20217.54%−0.01
30 Sep 20217.55%−0.29
15 Sep 20217.84%+0.09
31 Aug 20217.75%−0.47
13 Aug 20218.22%−0.17
30 Jul 20218.39%−0.44
15 Jul 20218.83%−0.83
30 Jun 20219.66%+0.29
15 Jun 20219.37%+0.50
28 May 20218.87%+0.15
14 May 20218.72%+0.15
30 Apr 20218.57%−0.36
15 Apr 20218.93%+0.11
31 Mar 20218.82%−0.86
15 Mar 20219.68%+0.45
26 Feb 20219.23%−0.45
12 Feb 20219.68%−0.57
29 Jan 202110.25%+0.46
15 Jan 20219.79%+0.33
31 Dec 20209.46%−4.17
15 Dec 202013.63%−0.09
30 Nov 202013.72%−0.15
13 Nov 202013.87%+0.19
30 Oct 202013.68%−0.52
15 Oct 202014.20%+0.02
30 Sep 202014.18%+0.15
15 Sep 202014.03%−0.14
31 Aug 202014.17%–

Newest first. Scroll inside the table for earlier dates, back to 31 Aug 2020.

Frequently asked questions

How shorted is MongoDB, Inc. right now?
3.57% of MongoDB, Inc.'s (MDB) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 2,225th 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 MDB'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 MDB's days to cover?
1.13 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.