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HowShorted

How shorted is Main Street Capital CORP? MAIN

#671most shorted US stockof 3,805 ranked stocks, more shorted than 82%

10.02%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.07
5 reports (~10 weeks)
−0.71
days to cover
20.97
Aggregate net short position time series for Main Street Capital CORP

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 Main Street Capital CORP 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 202610.49% 31 Jul 202610.07% 14 Aug 2026−0.42
16 Jul 202611.01% 15 Jul 202610.49% 31 Jul 2026−0.52
9 Jul 202610.73% 30 Jun 202611.01% 15 Jul 2026+0.28
7 May 202610.14% 30 Apr 202610.56% 15 May 2026+0.42
16 Apr 20269.77% 15 Apr 202610.14% 30 Apr 2026+0.37
9 Apr 20269.16% 31 Mar 20269.77% 15 Apr 2026+0.61
26 Feb 20267.39% 13 Feb 20267.71% 27 Feb 2026+0.32
15 Jan 20266.62% 31 Dec 20256.80% 30 Jan 2026+0.18

Fails to deliver

The SEC's fails-to-deliver figure for MAIN: 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
12,579
14 Sep 2026
Highest in window
617,108
22 Sep 2025
Days with a balance
183
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Main Street Capital CORP 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 617K shares.

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Sector: Financials

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 202610.02%−0.07
31 Aug 202610.09%+0.02
14 Aug 202610.07%−0.42
31 Jul 202610.49%−0.52
15 Jul 202611.01%+0.28
30 Jun 202610.73%−0.02
15 Jun 202610.75%+0.11
29 May 202610.64%+0.08
15 May 202610.56%+0.42
30 Apr 202610.14%+0.37
15 Apr 20269.77%+0.61
31 Mar 20269.16%+0.56
13 Mar 20268.60%+0.89
27 Feb 20267.71%+0.32
13 Feb 20267.39%+0.59
30 Jan 20266.80%+0.02
15 Jan 20266.78%+0.16
31 Dec 20256.62%−0.17
15 Dec 20256.79%−0.21
28 Nov 20257.00%+0.38
14 Nov 20256.62%+0.55
31 Oct 20256.07%+0.32
15 Oct 20255.75%+0.04
30 Sep 20255.71%+0.13
15 Sep 20255.58%+0.04
29 Aug 20255.54%−0.40
15 Aug 20255.94%−0.05
31 Jul 20255.99%+0.33
15 Jul 20255.66%+0.16
30 Jun 20255.50%−0.34
13 Jun 20255.84%+0.31
30 May 20255.53%−0.25
15 May 20255.78%+1.53
30 Apr 20254.25%+0.17
15 Apr 20254.08%+0.24
31 Mar 20253.84%+0.06
14 Mar 20253.78%+0.06
28 Feb 20253.72%−0.41
14 Feb 20254.13%−0.09
31 Jan 20254.22%−0.46
15 Jan 20254.68%−0.07
31 Dec 20244.75%+0.72
13 Dec 20244.03%−0.03
29 Nov 20244.06%+0.02
15 Nov 20244.04%−0.29
31 Oct 20244.33%−0.15
15 Oct 20244.48%−0.30
30 Sep 20244.78%+0.07
13 Sep 20244.71%+0.44
30 Aug 20244.27%+0.22
15 Aug 20244.05%+0.07
31 Jul 20243.98%−0.05
15 Jul 20244.03%−0.01
28 Jun 20244.04%−0.02
14 Jun 20244.06%+0.22
31 May 20243.84%−0.11
15 May 20243.95%−0.07
30 Apr 20244.02%+0.08
15 Apr 20243.94%−0.15
28 Mar 20244.09%+0.05
15 Mar 20244.04%−0.01
29 Feb 20244.05%0.00
15 Feb 20244.05%−0.12
31 Jan 20244.17%−0.08
12 Jan 20244.25%+0.09
29 Dec 20234.16%−0.21
15 Dec 20234.37%−0.08
30 Nov 20234.45%+0.27
15 Nov 20234.18%−0.22
31 Oct 20234.40%+0.33
13 Oct 20234.07%+0.24
29 Sep 20233.83%+0.12
15 Sep 20233.71%+0.01
31 Aug 20233.70%+0.03
15 Aug 20233.67%+0.02
31 Jul 20233.65%+0.04
14 Jul 20233.61%−0.12
30 Jun 20233.73%+0.28
15 Jun 20233.45%+0.22
31 May 20233.23%+0.26
15 May 20232.97%+0.08
28 Apr 20232.89%−0.04
14 Apr 20232.93%−0.05
31 Mar 20232.98%+0.36
15 Mar 20232.62%+0.09
28 Feb 20232.53%+0.08
15 Feb 20232.45%−0.09
31 Jan 20232.54%−0.15
13 Jan 20232.69%+0.10
30 Dec 20222.59%+0.06
15 Dec 20222.53%+0.10
30 Nov 20222.43%+0.02
15 Nov 20222.41%+0.11
31 Oct 20222.30%−0.01
14 Oct 20222.31%+0.09
30 Sep 20222.22%−0.02
15 Sep 20222.24%−0.13
31 Aug 20222.37%−0.24
15 Aug 20222.61%–

Newest first. Scroll inside the table for earlier dates, back to 15 Aug 2022.

Frequently asked questions

How shorted is Main Street Capital CORP right now?
10.02% of Main Street Capital CORP's (MAIN) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 671st 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 MAIN'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 MAIN's days to cover?
20.97 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.