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HowShorted

AOSL short interest Nasdaq Global Market

Alpha and Omega Semiconductor. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
2,922,868
vs previous settlement
+302,056 (+11.5%)
days to cover
5.83
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for AOSL shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for AOSL days to cover

Fails to deliver

The SEC's fails-to-deliver figure for AOSL: 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
163
28 Aug 2026
Highest in window
13,618
26 Sep 2025
Days with a balance
49
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Alpha and Omega Semiconductor 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 14K shares.

History

Every FINRA settlement we hold for AOSL, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20262,922,868+302,0565.83
31 Aug 20262,620,812โˆ’435,8024.41
14 Aug 20263,056,614โˆ’255,3035.08
31 Jul 20263,311,917+753,0945.31
15 Jul 20262,558,823+118,9593.95
30 Jun 20262,439,864+340,1332.64
15 Jun 20262,099,731+9,4222.26
29 May 20262,090,309+350,7012.09
15 May 20261,739,608โˆ’145,2141.33
30 Apr 20261,884,822+448,2691.41
15 Apr 20261,436,553โˆ’4,8713.40
31 Mar 20261,441,424โˆ’110,9175.46
13 Mar 20261,552,341+70,0344.70
27 Feb 20261,482,307+19,8336.62
13 Feb 20261,462,474+80,1712.57
30 Jan 20261,382,303โˆ’355,5914.28
15 Jan 20261,737,894โˆ’68,5836.53
31 Dec 20251,806,477+261,6875.13
15 Dec 20251,544,790โˆ’36,4945.48
28 Nov 20251,581,284+311,4333.36
14 Nov 20251,269,851+48,1002.58
31 Oct 20251,221,751โˆ’112,4715.58
15 Oct 20251,334,222โˆ’18,7044.71
30 Sep 20251,352,926โˆ’54,5725.46
15 Sep 20251,407,498+52,4156.43
29 Aug 20251,355,083โˆ’1,3786.87
15 Aug 20251,356,461+26,1725.20
31 Jul 20251,330,289โˆ’4,1976.65
15 Jul 20251,334,486โˆ’169,8826.25
30 Jun 20251,504,368โˆ’162,3944.86
13 Jun 20251,666,762โˆ’57,1054.28
30 May 20251,723,867โˆ’101,6484.80
15 May 20251,825,515โˆ’59,4464.89
30 Apr 20251,884,961โˆ’332,3362.78
15 Apr 20252,217,297+318,1873.42
31 Mar 20251,899,110โˆ’58,0204.99
14 Mar 20251,957,130+173,5213.15
28 Feb 20251,783,609โˆ’138,6363.24
14 Feb 20251,922,245+19,2171.99
31 Jan 20251,903,028+138,1952.93
15 Jan 20251,764,833+133,5263.98
31 Dec 20241,631,307โˆ’302,6091.90
13 Dec 20241,933,916+319,9401.85
29 Nov 20241,613,976+542,3161.57
15 Nov 20241,071,660+207,4092.07
31 Oct 2024864,251โˆ’40,7856.13
15 Oct 2024905,036โˆ’1,4255.70
30 Sep 2024906,461โˆ’88,1173.61
13 Sep 2024994,578+28,4792.70
30 Aug 2024966,099+178,0292.84
15 Aug 2024788,070+25,9522.37
31 Jul 2024762,118โˆ’174,9651.54
15 Jul 2024937,083โˆ’65,8871.84
28 Jun 20241,002,970+66,3461.73
14 Jun 2024936,624โˆ’14,9536.04
31 May 2024951,577โˆ’11,0515.81
15 May 2024962,628+49,0944.70
30 Apr 2024913,534โˆ’22,3099.16
15 Apr 2024935,843+55,29710.09
28 Mar 2024880,546โˆ’38,3568.23
15 Mar 2024918,902+30,0827.18
29 Feb 2024888,820+22,9156.33
15 Feb 2024865,905+105,2614.19
31 Jan 2024760,644โˆ’24,0815.81
12 Jan 2024784,725+72,3944.02
29 Dec 2023712,331+5,0885.26
15 Dec 2023707,243โˆ’82,7833.57
30 Nov 2023790,026+1,7776.78
15 Nov 2023788,249+83,9744.93
31 Oct 2023704,275โˆ’34,6924.28
13 Oct 2023738,967+38,7278.09
29 Sep 2023700,240โˆ’60,0675.91
15 Sep 2023760,307โˆ’2,2464.41
31 Aug 2023762,553โˆ’75,5405.86
15 Aug 2023838,093+25,0104.08
31 Jul 2023813,083โˆ’3,2345.60
14 Jul 2023816,317โˆ’121,8215.57
30 Jun 2023938,138โˆ’197,1002.59
15 Jun 20231,135,238โˆ’66,4765.41
31 May 20231,201,714โˆ’60,1755.11
15 May 20231,261,889โˆ’119,5085.42
28 Apr 20231,381,397+14,7617.62
14 Apr 20231,366,636โˆ’7,8069.75
31 Mar 20231,374,442โˆ’259,4015.97
15 Mar 20231,633,843โˆ’24,3136.95
28 Feb 20231,658,156สณโˆ’47,9966.72
15 Feb 20231,706,152+65,4743.89
31 Jan 20231,640,678+15,1229.44
13 Jan 20231,625,556โˆ’281,1428.10
30 Dec 20221,906,698+26,7807.53
15 Dec 20221,879,918โˆ’156,8028.83
30 Nov 20222,036,720โˆ’240,9428.75
15 Nov 20222,277,662โˆ’185,3318.24
31 Oct 20222,462,993โˆ’81,79311.57
14 Oct 20222,544,786โˆ’13,54410.59
30 Sep 20222,558,330+309,7226.89
15 Sep 20222,248,608+361,3786.56
31 Aug 20221,887,230+74,4685.78
15 Aug 20221,812,762+116,8323.83
29 Jul 20221,695,930โˆ’156,9796.40
15 Jul 20221,852,909โˆ’75,8795.00
30 Jun 20221,928,788+104,6213.96
15 Jun 20221,824,167โˆ’149,5864.58
31 May 20221,973,753+814,0911.64
13 May 20221,159,662โˆ’115,7431.39
29 Apr 20221,275,405+110,0443.67
14 Apr 20221,165,361+40,3781.88
31 Mar 20221,124,983+91,4401.13
15 Mar 20221,033,543+96,6561.83
28 Feb 2022936,887โˆ’29,6791.58
15 Feb 2022966,566+107,1901.45
31 Jan 2022859,376+196,2031.29
14 Jan 2022663,173โˆ’85,3821.00
31 Dec 2021748,555+145,3221.41
15 Dec 2021603,233+57,6301.00
30 Nov 2021545,603โˆ’10,0641.02
15 Nov 2021555,667โˆ’73,0401.23
29 Oct 2021628,707+59,0192.71
15 Oct 2021569,688โˆ’115,8693.26
30 Sep 2021685,557+34,0222.49
15 Sep 2021651,535+15,7643.62
31 Aug 2021635,771+26,1122.86
13 Aug 2021609,659โˆ’7,4652.44
30 Jul 2021617,124โˆ’16,2573.36
15 Jul 2021633,381+149,3163.34
30 Jun 2021484,065โˆ’35,3881.21
15 Jun 2021519,453สณโˆ’8,2453.12
28 May 2021527,698โˆ’36,0691.94
14 May 2021563,767+38,5702.13
30 Apr 2021525,197โˆ’1,0982.08
15 Apr 2021526,295โˆ’63,2543.02
31 Mar 2021589,549+9,9501.87
15 Mar 2021579,599+31,7921.92
26 Feb 2021547,807+44,4721.34
12 Feb 2021503,335+28,8401.20
29 Jan 2021474,495โˆ’4632.09
15 Jan 2021474,958+46,9221.61
31 Dec 2020428,036โˆ’7,9151.67
15 Dec 2020435,951โˆ’26,2981.36
30 Nov 2020462,249+75,9421.37
13 Nov 2020386,307โˆ’4,0472.87
30 Oct 2020390,354โˆ’42,5235.40
15 Oct 2020432,877+187,3772.20
30 Sep 2020245,500โˆ’103,7742.71
15 Sep 2020349,274โˆ’29,9052.95
31 Aug 2020379,179+34,6836.01
14 Aug 2020344,496+3,8212.46
31 Jul 2020340,675โˆ’25,1966.48
15 Jul 2020365,871+15,4895.53
30 Jun 2020350,382โˆ’9,0162.77
15 Jun 2020359,398โˆ’93,5883.64
29 May 2020452,986+36,0494.57
15 May 2020416,937สณโˆ’96,0213.00
30 Apr 2020512,958+10,8083.07
15 Apr 2020502,150โˆ’1,8593.91
31 Mar 2020504,009โˆ’39,4413.30
13 Mar 2020543,450+156,7494.38
28 Feb 2020386,701+100,7502.53
14 Feb 2020285,951+103,1881.77
31 Jan 2020182,763โˆ’44,1842.23
15 Jan 2020226,947โˆ’39,6132.83
31 Dec 2019266,560โˆ’51,8682.12
13 Dec 2019318,428+7,0354.35
29 Nov 2019311,393โˆ’22,3054.45
15 Nov 2019333,698+92,0152.39
31 Oct 2019241,683โˆ’3,5333.05
15 Oct 2019245,216+27,1131.80
30 Sep 2019218,103โˆ’169,7841.87
13 Sep 2019387,887โˆ’124,4822.95
30 Aug 2019512,369โˆ’53,2423.33
15 Aug 2019565,611โˆ’9,5524.19
31 Jul 2019575,163โˆ’53,3887.66
15 Jul 2019628,551โˆ’5,27214.26
28 Jun 2019633,823+88,5129.46
14 Jun 2019545,311+43,1957.45
31 May 2019502,116+39,0135.84
15 May 2019463,103+58,3395.20
30 Apr 2019404,764โˆ’24,2624.66
15 Apr 2019429,026โˆ’44,5245.56
29 Mar 2019473,550+14,9954.37
15 Mar 2019458,555+15,5584.80
28 Feb 2019442,997โˆ’22,1818.57
15 Feb 2019465,178โˆ’34,4205.35
31 Jan 2019499,598โˆ’27,4784.95
15 Jan 2019527,076โˆ’17,1496.50
31 Dec 2018544,225โˆ’2,8294.51
14 Dec 2018547,054+4,9825.36
30 Nov 2018542,072+20,3885.66
15 Nov 2018521,684+64,0114.36
31 Oct 2018457,673+86,3315.61
15 Oct 2018371,342+54,6264.12
28 Sep 2018316,716+91,2562.93
14 Sep 2018225,460+16,2982.51
31 Aug 2018209,162+32,7902.85
15 Aug 2018176,372+14,9411.84
31 Jul 2018161,431+9,4382.72
13 Jul 2018151,993สณ+3,3012.39
29 Jun 2018148,692โˆ’6,8171.00
15 Jun 2018155,509โˆ’72,8771.51
31 May 2018228,386+103,0811.90
15 May 2018125,305+21,7901.00
30 Apr 2018103,515โˆ’18,6801.00
13 Apr 2018122,195+11,0731.54
29 Mar 2018111,122โˆ’11,0301.00
15 Mar 2018122,152โˆ’21,0391.47
28 Feb 2018143,191โˆ’3041.00
15 Feb 2018143,495+28,2321.00
31 Jan 2018115,263โˆ’6,4171.89
12 Jan 2018121,680+2,6521.70
29 Dec 2017119,028โ€“2.38

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is AOSL's short interest?
2,922,868 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 302,056 from the previous settlement.
Why is there no percentage for AOSL?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is AOSL's days to cover?
5.83 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

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