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How shorted was Cornerstone Building Brands, Inc.? CNR

Cornerstone Building Brands, Inc. left the US market in 2022. This page is a frozen archive of its reported short interest, ending 15 Jul 2022. The ticker CNR no longer refers to this company; it currently belongs to Core Natural Resources, Inc..
5.29%
of shares outstanding reported short · settlement date 15 Jul 2022
vs previous report
−1.66
5 reports (~10 weeks)
−1.75
days to cover
5.32
Aggregate net short position time series for Cornerstone Building Brands, 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 Cornerstone Building Brands, 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
3 May 20227.04% 29 Apr 20227.67% 13 May 2022+0.63
1 Mar 20223.83% 28 Feb 20225.95% 15 Mar 2022+2.12
9 Nov 20211.81% 29 Oct 20211.38% 15 Nov 2021−0.43
4 Aug 20212.61% 30 Jul 20212.86% 13 Aug 2021+0.25
11 May 20213.25% 30 Apr 20213.51% 14 May 2021+0.26
4 Mar 20212.28% 26 Feb 20212.21% 15 Mar 2021−0.07
10 Nov 20201.88% 30 Oct 20201.96% 13 Nov 2020+0.08
11 Aug 20201.28% 31 Jul 20201.23% 14 Aug 2020−0.05

Fails to deliver

The SEC's fails-to-deliver figure for CNR: 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
2,669
28 Aug 2026
Highest in window
63,874
13 Nov 2025
Days with a balance
56
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Cornerstone Building Brands, 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 64K shares.

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Sector: Industrials

History

Full reported short interest history
Settlement dateShort %Change
15 Jul 20225.29%−1.66
30 Jun 20226.95%+0.58
15 Jun 20226.37%−1.34
31 May 20227.71%+0.04
13 May 20227.67%+0.63
29 Apr 20227.04%0.00
14 Apr 20227.04%+0.98
31 Mar 20226.06%+0.11
15 Mar 20225.95%+2.12
28 Feb 20223.83%+0.77
15 Feb 20223.06%+1.47
31 Jan 20221.59%+0.15
14 Jan 20221.44%−0.12
31 Dec 20211.56%+0.22
15 Dec 20211.34%−0.05
30 Nov 20211.39%+0.01
15 Nov 20211.38%−0.43
29 Oct 20211.81%−0.18
15 Oct 20211.99%−0.21
30 Sep 20212.20%−0.19
15 Sep 20212.39%−0.30
31 Aug 20212.69%−0.17
13 Aug 20212.86%+0.25
30 Jul 20212.61%−0.06
15 Jul 20212.67%+0.06
30 Jun 20212.61%−0.50
15 Jun 20213.11%+0.02
28 May 20213.09%−0.42
14 May 20213.51%+0.26
30 Apr 20213.25%+0.26
15 Apr 20212.99%+0.02
31 Mar 20212.97%+0.76
15 Mar 20212.21%−0.07
26 Feb 20212.28%+0.25
12 Feb 20212.03%−0.09
29 Jan 20212.12%−0.07
15 Jan 20212.19%−0.15
31 Dec 20202.34%+0.11
15 Dec 20202.23%+0.07
30 Nov 20202.16%+0.20
13 Nov 20201.96%+0.08
30 Oct 20201.88%+0.48
15 Oct 20201.40%+0.03
30 Sep 20201.37%−0.28
15 Sep 20201.65%+0.23
31 Aug 20201.42%+0.19
14 Aug 20201.23%−0.05
31 Jul 20201.28%+0.03
15 Jul 20201.25%−0.19
30 Jun 20201.44%+0.40
15 Jun 20201.04%−0.19
29 May 20201.23%−0.04
15 May 20201.27%+0.07
30 Apr 20201.20%−0.22
15 Apr 20201.42%−0.09
31 Mar 20201.51%−1.39
13 Mar 20202.90%+0.20
28 Feb 20202.70%−0.07
14 Feb 20202.77%−0.11
31 Jan 20202.88%−0.30
15 Jan 20203.18%+0.21
31 Dec 20192.97%−0.59
13 Dec 20193.56%+0.04
29 Nov 20193.52%−0.32
15 Nov 20193.84%−0.22
31 Oct 20194.06%−0.15
15 Oct 20194.21%+2.43
15 May 20191.78%+0.01
30 Apr 20191.77%−0.01
15 Apr 20191.78%+0.18
29 Mar 20191.60%+0.19
15 Mar 20191.41%+0.13
28 Feb 20191.28%+0.27
15 Feb 20191.01%+0.01
31 Jan 20191.00%−0.02
15 Jan 20191.02%+0.20
31 Dec 20180.82%−0.08
14 Dec 20180.90%−2.60
30 Nov 20183.50%+0.19
15 Nov 20183.31%+0.51
31 Oct 20182.80%+0.56
15 Oct 20182.24%+0.07
28 Sep 20182.17%−0.14
14 Sep 20182.31%+0.45
31 Aug 20181.86%+0.77
15 Aug 20181.09%−0.15
31 Jul 20181.24%+0.07
13 Jul 20181.17%−0.06
29 Jun 20181.23%+0.40
15 Jun 20180.83%−0.13
31 May 20180.96%−0.24
15 May 20181.20%−0.01
30 Apr 20181.21%+0.41
13 Apr 20180.80%−0.20
29 Mar 20181.00%+0.25
15 Mar 20180.75%0.00
28 Feb 20180.75%−0.47
15 Feb 20181.22%+0.42
31 Jan 20180.80%−0.16
12 Jan 20180.96%−0.18
29 Dec 20171.14%–

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

Frequently asked questions

How shorted was Cornerstone Building Brands, Inc.?
Cornerstone Building Brands, Inc. left the US market in 2022. Its final reported figure was 5.29% of shares outstanding for settlement date 15 Jul 2022, per FINRA's consolidated short interest report; this page preserves its full history.
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 CNR'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 CNR's days to cover?
5.32 days for settlement date 15 Jul 2022: 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.