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HowShorted

How shorted is The Mosaic Company? MOS

#717most shorted US stockof 3,805 ranked stocks, more shorted than 81%

9.72%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.63
5 reports (~10 weeks)
+0.39
days to cover
3.54
Aggregate net short position time series for The Mosaic Company

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 The Mosaic Company 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
4 Aug 202610.01% 31 Jul 20269.12% 14 Aug 2026−0.89
11 May 20265.48% 30 Apr 20266.14% 15 May 2026+0.66
24 Feb 20265.83% 13 Feb 20266.05% 27 Feb 2026+0.22
4 Nov 20254.55% 31 Oct 20254.52% 14 Nov 2025−0.03
5 Aug 20253.34% 31 Jul 20253.17% 15 Aug 2025−0.17
27 Feb 20252.73% 14 Feb 20252.86% 28 Feb 2025+0.13
12 Nov 20242.57% 31 Oct 20242.14% 15 Nov 2024−0.43
6 Aug 20241.92% 31 Jul 20241.64% 15 Aug 2024−0.28

Fails to deliver

The SEC's fails-to-deliver figure for MOS: 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
10,229
10 Sep 2026
Highest in window
338,568
26 Mar 2026
Days with a balance
63
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for The Mosaic Company 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 339K shares.

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Sector: Materials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20269.72%+0.63
31 Aug 20269.09%−0.03
14 Aug 20269.12%−0.89
31 Jul 202610.01%+0.68
15 Jul 20269.33%0.00
30 Jun 20269.33%+1.83
15 Jun 20267.50%+0.94
29 May 20266.56%+0.42
15 May 20266.14%+0.66
30 Apr 20265.48%−0.30
15 Apr 20265.78%−0.79
31 Mar 20266.57%−0.12
13 Mar 20266.69%+0.64
27 Feb 20266.05%+0.22
13 Feb 20265.83%+0.95
30 Jan 20264.88%−0.01
15 Jan 20264.89%−0.37
31 Dec 20255.26%−0.41
15 Dec 20255.67%+1.04
28 Nov 20254.63%+0.11
14 Nov 20254.52%−0.03
31 Oct 20254.55%+0.64
15 Oct 20253.91%−0.13
30 Sep 20254.04%−0.21
15 Sep 20254.25%+0.66
29 Aug 20253.59%+0.42
15 Aug 20253.17%−0.17
31 Jul 20253.34%−0.11
15 Jul 20253.45%−0.51
30 Jun 20253.96%+0.16
13 Jun 20253.80%+0.59
30 May 20253.21%−0.58
15 May 20253.79%+0.73
30 Apr 20253.06%+0.42
15 Apr 20252.64%+0.04
31 Mar 20252.60%+0.09
14 Mar 20252.51%−0.35
28 Feb 20252.86%+0.13
14 Feb 20252.73%−0.29
31 Jan 20253.02%0.00
15 Jan 20253.02%+0.20
31 Dec 20242.82%+0.14
13 Dec 20242.68%+0.50
29 Nov 20242.18%+0.04
15 Nov 20242.14%−0.43
31 Oct 20242.57%+0.24
15 Oct 20242.33%+0.40
30 Sep 20241.93%+0.08
13 Sep 20241.85%+0.13
30 Aug 20241.72%+0.08
15 Aug 20241.64%−0.28
31 Jul 20241.92%−0.19
15 Jul 20242.11%−0.06
28 Jun 20242.17%−0.43
14 Jun 20242.60%+0.73
31 May 20241.87%+0.37
15 May 20241.50%−0.75
30 Apr 20242.25%+0.13
15 Apr 20242.12%+0.56
28 Mar 20241.56%+0.17
15 Mar 20241.39%+0.42
29 Feb 20240.97%−0.38
15 Feb 20241.35%+0.21
31 Jan 20241.14%+0.23
12 Jan 20240.91%−0.06
29 Dec 20230.97%−0.13
15 Dec 20231.10%−0.07
30 Nov 20231.17%−0.05
15 Nov 20231.22%+0.16
31 Oct 20231.06%−0.10
13 Oct 20231.16%+0.06
29 Sep 20231.10%−0.36
15 Sep 20231.46%−0.02
31 Aug 20231.48%−0.08
15 Aug 20231.56%−0.25
31 Jul 20231.81%−0.21
14 Jul 20232.02%−0.04
30 Jun 20232.06%−0.21
15 Jun 20232.27%−0.61
31 May 20232.88%+0.10
15 May 20232.78%+0.20
28 Apr 20232.58%−0.45
14 Apr 20233.03%−0.04
31 Mar 20233.07%+0.08
15 Mar 20232.99%+0.78
28 Feb 20232.21%−0.30
15 Feb 20232.51%+0.04
31 Jan 20232.47%−0.11
13 Jan 20232.58%+0.44
30 Dec 20222.14%−0.05
15 Dec 20222.19%+0.08
30 Nov 20222.11%−0.30
15 Nov 20222.41%−0.15
31 Oct 20222.56%−0.30
14 Oct 20222.86%−0.39
30 Sep 20223.25%+0.24
15 Sep 20223.01%+0.17
31 Aug 20222.84%+0.34
15 Aug 20222.50%−0.34
29 Jul 20222.84%−0.23
15 Jul 20223.07%−0.47
30 Jun 20223.54%−0.04
15 Jun 20223.58%+0.59
31 May 20222.99%−0.58
13 May 20223.57%+0.03
29 Apr 20223.54%−0.06
14 Apr 20223.60%+0.23
31 Mar 20223.37%−0.88
15 Mar 20224.25%+0.72
28 Feb 20223.53%+1.51
15 Feb 20222.02%+0.51
31 Jan 20221.51%−0.49
14 Jan 20222.00%+0.03
31 Dec 20211.97%+0.55
15 Dec 20211.42%+0.30
30 Nov 20211.12%−0.18
15 Nov 20211.30%−0.39
29 Oct 20211.69%−0.19
15 Oct 20211.88%+0.18
30 Sep 20211.70%+0.22
15 Sep 20211.48%+0.12
31 Aug 20211.36%−0.30
13 Aug 20211.66%−0.03
30 Jul 20211.69%+0.02
15 Jul 20211.67%−0.11
30 Jun 20211.78%+0.35
15 Jun 20211.43%+0.12
28 May 20211.31%−0.15
14 May 20211.46%−0.15
30 Apr 20211.61%−0.15
15 Apr 20211.76%+0.42
31 Mar 20211.34%−0.24
15 Mar 20211.58%+0.55
26 Feb 20211.03%−0.41
12 Feb 20211.44%−0.21
29 Jan 20211.65%−0.42
15 Jan 20212.07%+0.40
31 Dec 20201.67%−0.55
15 Dec 20202.22%+0.80
30 Nov 20201.42%+0.11
13 Nov 20201.31%−1.03
30 Oct 20202.34%+0.39
15 Oct 20201.95%+0.30
30 Sep 20201.65%−0.24
15 Sep 20201.89%−0.16
31 Aug 20202.05%−0.02
14 Aug 20202.07%+0.06
31 Jul 20202.01%+0.08
15 Jul 20201.93%−0.57
30 Jun 20202.50%+0.20
15 Jun 20202.30%−0.53
29 May 20202.83%−0.43
15 May 20203.26%+0.29
30 Apr 20202.97%−0.73
15 Apr 20203.70%+0.40
31 Mar 20203.30%−0.71
13 Mar 20204.01%−0.03
28 Feb 20204.04%+0.11
14 Feb 20203.93%−0.49
31 Jan 20204.42%+0.22
15 Jan 20204.20%−0.25
31 Dec 20194.45%+0.97
13 Dec 20193.48%+0.18
29 Nov 20193.30%−0.26
15 Nov 20193.56%+0.17
31 Oct 20193.39%+0.19
15 Oct 20193.20%−0.37
30 Sep 20193.57%+0.09
13 Sep 20193.48%−0.30
30 Aug 20193.78%−0.28
15 Aug 20194.06%+1.06
31 Jul 20193.00%−0.25
15 Jul 20193.25%+0.39
28 Jun 20192.86%+0.47
14 Jun 20192.39%+0.09
31 May 20192.30%+0.31
15 May 20191.99%+0.65
30 Apr 20191.34%−0.37
15 Apr 20191.71%+0.06
29 Mar 20191.65%+0.09
15 Mar 20191.56%−0.26
28 Feb 20191.82%+0.18
15 Feb 20191.64%−0.05
31 Jan 20191.69%−0.23
15 Jan 20191.92%−0.01
31 Dec 20181.93%−0.53
14 Dec 20182.46%+0.04
30 Nov 20182.42%0.00
15 Nov 20182.42%+0.10
31 Oct 20182.32%−0.67
15 Oct 20182.99%+0.19
28 Sep 20182.80%−0.03
14 Sep 20182.83%+0.12
31 Aug 20182.71%−0.33
15 Aug 20183.04%+0.06
31 Jul 20182.98%−0.43
13 Jul 20183.41%−0.04
29 Jun 20183.45%−0.64
15 Jun 20184.09%+0.38
31 May 20183.71%+0.29
15 May 20183.42%0.00
30 Apr 20183.42%−0.06
13 Apr 20183.48%+0.01
29 Mar 20183.47%−0.38
15 Mar 20183.85%−0.44
28 Feb 20184.29%+0.33
15 Feb 20183.96%−0.33
31 Jan 20184.29%−0.57
12 Jan 20184.86%+0.52
29 Dec 20174.34%–

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

Frequently asked questions

How shorted is The Mosaic Company right now?
9.72% of The Mosaic Company's (MOS) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 717th 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 MOS'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 MOS's days to cover?
3.54 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.