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HowShorted

How shorted is WESTERN DIGITAL CORP? WDC

#1,752most shorted US stockof 3,805 ranked stocks, more shorted than 53%

4.79%
of shares outstanding reported short · settlement date 15 Sep 2026
vs previous report
−0.73
5 reports (~10 weeks)
−1.70
days to cover
3.13
Aggregate net short position time series for WESTERN DIGITAL 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 WESTERN DIGITAL 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
5 Aug 20267.14% 31 Jul 20265.63% 14 Aug 2026−1.51
30 Apr 20267.89% 15 Apr 20268.64% 15 May 2026+0.75
29 Jan 20269.80% 15 Jan 20269.30% 30 Jan 2026−0.50
30 Oct 20259.85% 15 Oct 20259.35% 31 Oct 2025−0.50
30 Jul 20259.46% 15 Jul 20259.48% 31 Jul 2025+0.02
30 Apr 20258.76% 15 Apr 20259.15% 15 May 2025+0.39
29 Jan 20256.33% 15 Jan 20256.96% 31 Jan 2025+0.63
16 Jan 20256.33% 15 Jan 20256.96% 31 Jan 2025+0.63

Fails to deliver

The SEC's fails-to-deliver figure for WDC: 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
1,179
10 Sep 2026
Highest in window
420,591
9 Jun 2026
Days with a balance
99
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for WESTERN DIGITAL 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 421K shares.

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Sector: Technology

History

Full reported short interest history
Settlement dateShort %Change
15 Sep 20264.79%−0.73
31 Aug 20265.52%−0.11
14 Aug 20265.63%−1.51
31 Jul 20267.14%+0.39
15 Jul 20266.75%+0.26
30 Jun 20266.49%−1.18
15 Jun 20267.67%−1.58
29 May 20269.25%+0.61
15 May 20268.64%+0.19
30 Apr 20268.45%+0.56
15 Apr 20267.89%+0.03
31 Mar 20267.86%−0.27
13 Mar 20268.13%−0.68
27 Feb 20268.81%−0.51
13 Feb 20269.32%+0.02
30 Jan 20269.30%−0.50
15 Jan 20269.80%−0.98
31 Dec 202510.78%+1.61
15 Dec 20259.17%+0.15
28 Nov 20259.02%−0.81
14 Nov 20259.83%+0.48
31 Oct 20259.35%−0.50
15 Oct 20259.85%−0.77
30 Sep 202510.62%−0.76
15 Sep 202511.38%+1.26
29 Aug 202510.12%+0.51
15 Aug 20259.61%+0.13
31 Jul 20259.48%+0.02
15 Jul 20259.46%−0.17
30 Jun 20259.63%−0.29
13 Jun 20259.92%+0.93
30 May 20258.99%−0.16
15 May 20259.15%+0.60
30 Apr 20258.55%−0.21
15 Apr 20258.76%−0.50
31 Mar 20259.26%−0.37
14 Mar 20259.63%+0.39
28 Feb 20259.24%+0.74
14 Feb 20258.50%+1.54
31 Jan 20256.96%+0.63
15 Jan 20256.33%+0.37
31 Dec 20245.96%−0.07
13 Dec 20246.03%−0.26
29 Nov 20246.29%+1.05
15 Nov 20245.24%+0.54
31 Oct 20244.70%−0.52
15 Oct 20245.22%−0.47
30 Sep 20245.69%+0.33
13 Sep 20245.36%+0.30
30 Aug 20245.06%−0.02
15 Aug 20245.08%−0.42
31 Jul 20245.50%−1.07
15 Jul 20246.57%−0.80
28 Jun 20247.37%−0.46
14 Jun 20247.83%+0.27
31 May 20247.56%+0.88
15 May 20246.68%−0.13
30 Apr 20246.81%+1.00
15 Apr 20245.81%+0.89
28 Mar 20244.92%+0.14
15 Mar 20244.78%−0.97
29 Feb 20245.75%+0.21
15 Feb 20245.54%+0.17
31 Jan 20245.37%+0.62
12 Jan 20244.75%+0.65
29 Dec 20234.10%−0.60
15 Dec 20234.70%+0.11
30 Nov 20234.59%−0.39
15 Nov 20234.98%+2.35
31 Oct 20232.63%+0.19
13 Oct 20232.44%+0.10
29 Sep 20232.34%−0.12
15 Sep 20232.46%+0.16
31 Aug 20232.30%+0.06
15 Aug 20232.24%+0.35
31 Jul 20231.89%+0.15
14 Jul 20231.74%−0.17
30 Jun 20231.91%−0.59
15 Jun 20232.50%+0.20
31 May 20232.30%−0.15
15 May 20232.45%−0.11
28 Apr 20232.56%+0.35
14 Apr 20232.21%−0.28
31 Mar 20232.49%+0.01
15 Mar 20232.48%−0.03
28 Feb 20232.51%−0.22
15 Feb 20232.73%+0.16
31 Jan 20232.57%+0.19
13 Jan 20232.38%−0.16
30 Dec 20222.54%+0.21
15 Dec 20222.33%−0.40
30 Nov 20222.73%+0.05
15 Nov 20222.68%+0.53
31 Oct 20222.15%−0.90
14 Oct 20223.05%+0.49
30 Sep 20222.56%−0.06
15 Sep 20222.62%+0.41
31 Aug 20222.21%+0.16
15 Aug 20222.05%−0.09
29 Jul 20222.14%−0.80
15 Jul 20222.94%0.00
30 Jun 20222.94%+0.67
15 Jun 20222.27%+0.21
31 May 20222.06%−0.46
13 May 20222.52%+0.25
29 Apr 20222.27%−0.23
14 Apr 20222.50%+0.37
31 Mar 20222.13%−0.05
15 Mar 20222.18%+0.34
28 Feb 20221.84%−0.32
15 Feb 20222.16%+0.26
31 Jan 20221.90%−0.33
14 Jan 20222.23%−0.29
31 Dec 20212.52%−0.30
15 Dec 20212.82%+0.30
30 Nov 20212.52%+0.26
15 Nov 20212.26%−0.08
29 Oct 20212.34%−0.30
15 Oct 20212.64%+0.26
30 Sep 20212.38%−0.40
15 Sep 20212.78%+0.15
31 Aug 20212.63%+0.04
13 Aug 20212.59%+0.56
30 Jul 20212.03%+0.38
15 Jul 20211.65%+0.01
30 Jun 20211.64%−0.07
15 Jun 20211.71%−0.05
28 May 20211.76%−0.18
14 May 20211.94%+0.29
30 Apr 20211.65%−0.26
15 Apr 20211.91%+0.19
31 Mar 20211.72%−0.19
15 Mar 20211.91%−0.17
26 Feb 20212.08%+0.05
12 Feb 20212.03%−0.17
29 Jan 20212.20%−0.63
15 Jan 20212.83%+0.28
31 Dec 20202.55%−0.06
15 Dec 20202.61%−0.51
30 Nov 20203.12%+0.28
13 Nov 20202.84%+0.22
30 Oct 20202.62%−0.97
15 Oct 20203.59%+0.07
30 Sep 20203.52%+0.41
15 Sep 20203.11%−0.33
31 Aug 20203.44%+0.01
14 Aug 20203.43%+0.82
31 Jul 20202.61%+0.04
15 Jul 20202.57%−0.44
30 Jun 20203.01%−0.52
15 Jun 20203.53%−0.29
29 May 20203.82%+0.50
15 May 20203.32%+0.38
30 Apr 20202.94%+0.02
15 Apr 20202.92%+0.32
31 Mar 20202.60%−0.03
13 Mar 20202.63%+0.19
28 Feb 20202.44%−0.29
14 Feb 20202.73%+0.02
31 Jan 20202.71%−0.73
15 Jan 20203.44%−0.91
31 Dec 20194.35%−0.35
13 Dec 20194.70%+0.50
29 Nov 20194.20%+0.69
15 Nov 20193.51%−0.65
31 Oct 20194.16%−0.18
15 Oct 20194.34%+0.29
30 Sep 20194.05%−0.70
13 Sep 20194.75%−0.09
30 Aug 20194.84%−0.46
15 Aug 20195.30%−0.20
31 Jul 20195.50%−1.77
15 Jul 20197.27%+0.78
28 Jun 20196.49%+0.38
14 Jun 20196.11%+0.52
31 May 20195.59%+0.04
15 May 20195.55%+0.73
30 Apr 20194.82%−0.21
15 Apr 20195.03%−1.62
29 Mar 20196.65%−0.19
15 Mar 20196.84%+0.47
28 Feb 20196.37%−0.61
15 Feb 20196.98%+0.06
31 Jan 20196.92%+0.74
15 Jan 20196.18%+0.42
31 Dec 20185.76%+1.30
14 Dec 20184.46%+0.11
30 Nov 20184.35%+0.36
15 Nov 20183.99%−0.01
31 Oct 20184.00%+0.25
15 Oct 20183.75%−0.15
28 Sep 20183.90%+0.73
14 Sep 20183.17%+0.16
31 Aug 20183.01%0.00
15 Aug 20183.01%+0.31
31 Jul 20182.70%+0.01
13 Jul 20182.69%0.00
29 Jun 20182.69%+0.06
15 Jun 20182.63%−0.38
31 May 20183.01%+0.19
15 May 20182.82%+0.81
30 Apr 20182.01%−0.75
13 Apr 20182.76%+0.19
29 Mar 20182.57%−0.26
15 Mar 20182.83%+0.05
28 Feb 20182.78%−0.13
15 Feb 20182.91%−0.30
31 Jan 20183.21%−1.25
12 Jan 20184.46%+0.84
29 Dec 20173.62%–

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

Frequently asked questions

How shorted is WESTERN DIGITAL CORP right now?
4.79% of WESTERN DIGITAL CORP's (WDC) shares outstanding were reported short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report. That makes it the 1,752nd 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 WDC'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 WDC's days to cover?
3.13 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.