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HowShorted

How shorted is Watsco, Inc.? WSO

#719most shorted US stockof 3,805 ranked stocks, more shorted than 81%

9.70%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
+0.15
5 reports (~10 weeks)
+2.28
days to cover
9.57
Aggregate net short position time series for Watsco, 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 Watsco, 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
29 Jul 20268.33% 15 Jul 20268.70% 31 Jul 2026+0.37
28 Apr 20269.03% 15 Apr 20268.10% 30 Apr 2026−0.93
17 Feb 20268.67% 13 Feb 20267.59% 27 Feb 2026−1.08
29 Oct 20256.59% 15 Oct 20257.19% 31 Oct 2025+0.60
30 Jul 20256.18% 15 Jul 20256.12% 31 Jul 2025−0.06
23 Apr 20256.54% 15 Apr 20255.98% 30 Apr 2025−0.56
18 Feb 20255.77% 14 Feb 20255.98% 28 Feb 2025+0.21
23 Oct 20247.22% 15 Oct 20246.53% 31 Oct 2024−0.69

Fails to deliver

The SEC's fails-to-deliver figure for WSO: 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
470
14 Sep 2026
Highest in window
72,434
13 Aug 2026
Days with a balance
81
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Watsco, 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 72K shares.

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Sector: Consumer retail

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20269.70%+0.15
31 Aug 20269.55%+0.73
14 Aug 20268.82%+0.12
31 Jul 20268.70%+0.37
15 Jul 20268.33%+0.91
30 Jun 20267.42%+0.03
15 Jun 20267.39%+0.05
29 May 20267.34%+0.05
15 May 20267.29%−0.81
30 Apr 20268.10%−0.93
15 Apr 20269.03%+1.84
31 Mar 20267.19%−0.09
13 Mar 20267.28%−0.31
27 Feb 20267.59%−1.08
13 Feb 20268.67%+0.12
30 Jan 20268.55%+0.46
15 Jan 20268.09%+0.26
31 Dec 20257.83%−0.12
15 Dec 20257.95%+0.09
28 Nov 20257.86%+0.31
14 Nov 20257.55%+0.36
31 Oct 20257.19%+0.60
15 Oct 20256.59%−0.31
30 Sep 20256.90%+0.49
15 Sep 20256.41%+0.31
29 Aug 20256.10%−0.15
15 Aug 20256.25%+0.13
31 Jul 20256.12%−0.06
15 Jul 20256.18%+0.42
30 Jun 20255.76%−0.16
13 Jun 20255.92%+0.01
30 May 20255.91%+0.18
15 May 20255.73%−0.25
30 Apr 20255.98%−0.56
15 Apr 20256.54%+0.58
31 Mar 20255.96%−0.10
14 Mar 20256.06%+0.08
28 Feb 20255.98%+0.21
14 Feb 20255.77%+0.08
31 Jan 20255.69%−0.06
15 Jan 20255.75%−0.10
31 Dec 20245.85%−0.23
13 Dec 20246.08%−0.03
29 Nov 20246.11%−0.16
15 Nov 20246.27%−0.26
31 Oct 20246.53%−0.69
15 Oct 20247.22%−0.44
30 Sep 20247.66%−0.20
13 Sep 20247.86%−0.34
30 Aug 20248.20%+0.36
15 Aug 20247.84%+0.26
31 Jul 20247.58%−0.22
15 Jul 20247.80%+0.19
28 Jun 20247.61%−1.00
14 Jun 20248.61%+0.09
31 May 20248.52%−0.11
15 May 20248.63%−0.65
30 Apr 20249.28%−1.32
15 Apr 202410.60%+0.83
28 Mar 20249.77%−0.73
15 Mar 202410.50%+0.71
29 Feb 20249.79%+0.15
15 Feb 20249.64%+0.09
31 Jan 20249.55%−0.18
12 Jan 20249.73%−0.09
29 Dec 20239.82%−0.19
15 Dec 202310.01%−0.56
30 Nov 202310.57%+0.13
15 Nov 202310.44%+0.09
31 Oct 202310.35%−0.70
13 Oct 202311.05%−0.36
29 Sep 202311.41%+0.01
15 Sep 202311.40%+0.10
31 Aug 202311.30%+0.15
15 Aug 202311.15%0.00
31 Jul 202311.15%−0.15
14 Jul 202311.30%+0.27
30 Jun 202311.03%−0.33
15 Jun 202311.36%+1.00
31 May 202310.36%+0.23
15 May 202310.13%+0.69
28 Apr 20239.44%−0.50
14 Apr 20239.94%+0.55
31 Mar 20239.39%+0.14
15 Mar 20239.25%−0.39
28 Feb 20239.64%−0.08
15 Feb 20239.72%−0.02
31 Jan 20239.74%−0.34
13 Jan 202310.08%+0.48
30 Dec 20229.60%−0.11
15 Dec 20229.71%+0.75
30 Nov 20228.96%+0.60
15 Nov 20228.36%+0.99
31 Oct 20227.37%+0.79
14 Oct 20226.58%+0.99
30 Sep 20225.59%+0.15
15 Sep 20225.44%−0.13
31 Aug 20225.57%+0.23
15 Aug 20225.34%+0.31
29 Jul 20225.03%−0.68
15 Jul 20225.71%+0.20
30 Jun 20225.51%+1.10
15 Jun 20224.41%−0.27
31 May 20224.68%−0.10
13 May 20224.78%+0.73
29 Apr 20224.05%+0.59
14 Apr 20223.46%+0.43
31 Mar 20223.03%−0.40
15 Mar 20223.43%+0.17
28 Feb 20223.26%+0.06
15 Feb 20223.20%−0.08
31 Jan 20223.28%−0.10
14 Jan 20223.38%0.00
31 Dec 20213.38%−0.14
15 Dec 20213.52%+0.26
30 Nov 20213.26%+0.08
15 Nov 20213.18%−0.03
29 Oct 20213.21%+0.10
15 Oct 20213.11%−0.09
30 Sep 20213.20%−0.01
15 Sep 20213.21%−0.02
31 Aug 20213.23%−0.10
13 Aug 20213.33%−0.04
30 Jul 20213.37%−0.48
15 Jul 20213.85%+0.05
30 Jun 20213.80%−0.24
15 Jun 20214.04%+0.11
28 May 20213.93%+0.18
14 May 20213.75%−0.03
30 Apr 20213.78%−0.33
15 Apr 20214.11%−0.08
31 Mar 20214.19%−0.18
15 Mar 20214.37%−0.35
26 Feb 20214.72%+0.19
12 Feb 20214.53%−0.21
29 Jan 20214.74%−0.45
15 Jan 20215.19%−0.01
31 Dec 20205.20%−0.03
15 Dec 20205.23%−0.06
30 Nov 20205.29%−0.13
13 Nov 20205.42%−0.09
30 Oct 20205.51%−0.15
15 Oct 20205.66%+0.29
30 Sep 20205.37%−0.10
15 Sep 20205.47%−0.07
31 Aug 20205.54%−0.34
14 Aug 20205.88%+0.01
31 Jul 20205.87%−0.34
15 Jul 20206.21%+0.27
30 Jun 20205.94%+0.38
15 Jun 20205.56%−0.14
29 May 20205.70%+0.37
15 May 20205.33%−0.22
30 Apr 20205.55%+0.06
15 Apr 20205.49%+0.76
31 Mar 20204.73%+0.14
13 Mar 20204.59%+0.22
28 Feb 20204.37%+0.33
14 Feb 20204.04%+0.55
31 Jan 20203.49%−0.22
15 Jan 20203.71%−0.30
31 Dec 20194.01%−0.22
13 Dec 20194.23%−0.09
29 Nov 20194.32%−0.28
15 Nov 20194.60%−0.04
31 Oct 20194.64%−0.43
15 Oct 20195.07%+0.65
30 Sep 20194.42%−0.41
13 Sep 20194.83%+0.23
30 Aug 20194.60%+0.44
15 Aug 20194.16%–

Newest first. Scroll inside the table for earlier dates, back to 15 Aug 2019.

Frequently asked questions

How shorted is Watsco, Inc. right now?
9.70% of Watsco, Inc.'s (WSO) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 719th 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 WSO'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 WSO's days to cover?
9.57 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.