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HowShorted

How shorted is BlackLine, Inc.? BL

#683most shorted US stockof 3,805 ranked stocks, more shorted than 82%

9.91%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.13
5 reports (~10 weeks)
−2.45
days to cover
7.00
Aggregate net short position time series for BlackLine, 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 BlackLine, 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
4 Aug 20269.63% 31 Jul 20268.50% 14 Aug 2026−1.13
5 May 202611.08% 30 Apr 202612.00% 15 May 2026+0.92
10 Feb 20269.80% 30 Jan 202610.67% 13 Feb 2026+0.87
6 Nov 202510.37% 31 Oct 202510.32% 14 Nov 2025−0.05
5 Aug 202510.24% 31 Jul 202510.08% 15 Aug 2025−0.16
6 May 20259.17% 30 Apr 202510.36% 15 May 2025+1.19
11 Feb 20257.59% 31 Jan 20257.81% 14 Feb 2025+0.22
13 Jan 20257.62% 31 Dec 20247.39% 15 Jan 2025−0.23

Fails to deliver

The SEC's fails-to-deliver figure for BL: 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
1,347
3 Sep 2026
Highest in window
177,959
28 Oct 2025
Days with a balance
70
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for BlackLine, 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 178K shares.

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Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20269.91%−0.13
31 Aug 202610.04%+1.54
14 Aug 20268.50%−1.13
31 Jul 20269.63%−1.70
15 Jul 202611.33%−1.03
30 Jun 202612.36%+0.88
15 Jun 202611.48%+0.08
29 May 202611.40%−0.60
15 May 202612.00%+0.92
30 Apr 202611.08%+0.68
15 Apr 202610.40%+0.78
31 Mar 20269.62%−0.58
13 Mar 202610.20%+0.17
27 Feb 202610.03%−0.64
13 Feb 202610.67%+0.87
30 Jan 20269.80%+0.23
15 Jan 20269.57%+0.12
31 Dec 20259.45%−1.04
15 Dec 202510.49%−0.30
28 Nov 202510.79%+0.47
14 Nov 202510.32%−0.05
31 Oct 202510.37%+0.51
15 Oct 20259.86%−0.27
30 Sep 202510.13%−0.37
15 Sep 202510.50%+1.04
29 Aug 20259.46%−0.62
15 Aug 202510.08%−0.16
31 Jul 202510.24%−0.85
15 Jul 202511.09%−0.17
30 Jun 202511.26%+0.19
13 Jun 202511.07%+0.45
30 May 202510.62%+0.26
15 May 202510.36%+1.19
30 Apr 20259.17%+0.16
15 Apr 20259.01%+1.38
31 Mar 20257.63%+0.26
14 Mar 20257.37%+0.08
28 Feb 20257.29%−0.52
14 Feb 20257.81%+0.22
31 Jan 20257.59%+0.20
15 Jan 20257.39%−0.23
31 Dec 20247.62%+0.08
13 Dec 20247.54%+0.06
29 Nov 20247.48%−0.34
15 Nov 20247.82%+0.41
31 Oct 20247.41%−0.06
15 Oct 20247.47%−0.11
30 Sep 20247.58%+0.51
13 Sep 20247.07%−0.50
30 Aug 20247.57%−0.23
15 Aug 20247.80%+0.21
31 Jul 20247.59%−0.71
15 Jul 20248.30%+0.79
28 Jun 20247.51%+0.82
14 Jun 20246.69%−0.32
31 May 20247.01%+2.66
15 May 20244.35%−1.01
30 Apr 20245.36%−1.20
15 Apr 20246.56%−0.33
28 Mar 20246.89%+0.63
15 Mar 20246.26%+2.47
29 Feb 20243.79%+0.49
15 Feb 20243.30%−0.08
31 Jan 20243.38%+0.64
12 Jan 20242.74%−0.39
29 Dec 20233.13%−0.29
15 Dec 20233.42%−0.09
30 Nov 20233.51%−0.02
15 Nov 20233.53%−0.15
31 Oct 20233.68%−0.20
13 Oct 20233.88%−0.40
29 Sep 20234.28%−0.41
15 Sep 20234.69%+0.06
31 Aug 20234.63%+0.49
15 Aug 20234.14%−0.43
31 Jul 20234.57%+0.40
14 Jul 20234.17%−0.30
30 Jun 20234.47%+0.39
15 Jun 20234.08%−1.23
31 May 20235.31%−0.11
15 May 20235.42%−1.05
28 Apr 20236.47%−0.44
14 Apr 20236.91%−0.61
31 Mar 20237.52%−0.14
15 Mar 20237.66%+0.13
28 Feb 20237.53%−0.02
15 Feb 20237.55%+0.50
31 Jan 20237.05%+0.57
13 Jan 20236.48%−0.20
30 Dec 20226.68%+0.08
15 Dec 20226.60%−0.26
30 Nov 20226.86%+0.01
15 Nov 20226.85%+0.19
31 Oct 20226.66%−0.08
14 Oct 20226.74%−0.07
30 Sep 20226.81%−0.45
15 Sep 20227.26%−0.41
31 Aug 20227.67%−1.04
15 Aug 20228.71%+0.01
29 Jul 20228.70%−0.75
15 Jul 20229.45%−0.09
30 Jun 20229.54%+0.18
15 Jun 20229.36%−0.01
31 May 20229.37%+1.49
13 May 20227.88%−0.63
29 Apr 20228.51%−0.06
14 Apr 20228.57%+0.15
31 Mar 20228.42%+0.26
15 Mar 20228.16%+0.36
28 Feb 20227.80%−0.34
15 Feb 20228.14%−0.08
31 Jan 20228.22%−0.81
14 Jan 20229.03%−0.58
31 Dec 20219.61%+0.11
15 Dec 20219.50%+0.62
30 Nov 20218.88%+0.02
15 Nov 20218.86%−0.35
29 Oct 20219.21%−0.27
15 Oct 20219.48%−0.11
30 Sep 20219.59%0.00
15 Sep 20219.59%+0.31
31 Aug 20219.28%−0.20
13 Aug 20219.48%+0.10
30 Jul 20219.38%+0.37
15 Jul 20219.01%+0.25
30 Jun 20218.76%−0.03
15 Jun 20218.79%−0.35
28 May 20219.14%+0.43
14 May 20218.71%+0.52
30 Apr 20218.19%+0.11
15 Apr 20218.08%+0.47
31 Mar 20217.61%−0.55
15 Mar 20218.16%+0.21
26 Feb 20217.95%−0.37
12 Feb 20218.32%−0.46
29 Jan 20218.78%+0.17
15 Jan 20218.61%0.00
31 Dec 20208.61%+0.18
15 Dec 20208.43%+0.08
30 Nov 20208.35%−0.91
13 Nov 20209.26%+0.44
30 Oct 20208.82%−0.16
15 Oct 20208.98%−0.18
30 Sep 20209.16%+0.33
15 Sep 20208.83%+0.50
31 Aug 20208.33%+0.06
14 Aug 20208.27%+0.19
31 Jul 20208.08%−0.15
15 Jul 20208.23%+0.06
30 Jun 20208.17%+0.81
15 Jun 20207.36%−0.03
29 May 20207.39%−0.17
15 May 20207.56%−0.60
30 Apr 20208.16%+0.15
15 Apr 20208.01%+0.38
31 Mar 20207.63%−0.64
13 Mar 20208.27%+0.29
28 Feb 20207.98%+0.13
14 Feb 20207.85%−2.24
31 Jan 202010.09%−0.92
15 Jan 202011.01%−0.29
31 Dec 201911.30%+0.68
13 Dec 201910.62%+0.30
29 Nov 201910.32%−0.01
15 Nov 201910.33%−0.38
31 Oct 201910.71%−0.70
15 Oct 201911.41%–

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

Frequently asked questions

How shorted is BlackLine, Inc. right now?
9.91% of BlackLine, Inc.'s (BL) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 683rd 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 BL'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 BL's days to cover?
7.00 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.