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ASPI Short Interest History

ASPI Short Interest (July 15, 2026 Update)
Short interest for ASPI was 24.2M as of July 15, 2026, +2.0% from the prior report.
This page tracks ASPI short interest over time, including historical values, changes between reports, and days to cover.

ASP Isotopes Inc. Common Stock | ASPI | Nasdaq | Latest report: July 15, 2026

Current Short Interest24.2M
Prior Short Interest23.8M
Change Shares480.4K
Change %+2.0%
Average Daily Volume3.5M
Days to Cover6.83

At the latest settlement date of July 15, 2026, ASP Isotopes Inc. Common Stock (ASPI) showed reported short interest of 24,237,238 shares. That compared with 23,756,842 shares in the prior report, a change of 480.4K shares, or +2.0%. The latest reported days to cover was 6.83, based on average daily volume of 3.5M.

The historical data currently tracked for ASPI includes 86 reported entries from November 15, 2022 to July 15, 2026. Over that span, reported short interest has ranged from 203 to 25.5M shares.

Short Interest Over Time

Days to Cover Over Time

Extreme edge-case readings may reflect unusually low reported average volume.

Short Interest History for ASPI

Settlement DateShort InterestPrior Short InterestChange SharesChange %Average Daily VolumeDays to Cover
July 15, 202624,237,23823,756,842480.4K+2.0%3.5M6.83
June 30, 202623,756,84223,093,270663.6K+2.9%5.0M4.8
June 15, 202623,093,27022,580,613512.7K+2.3%5.8M4
May 29, 202622,580,61323,082,673-502.1K-2.2%7.0M3.24
May 15, 202623,082,67324,948,729-1.9M-7.5%4.2M5.48
April 30, 202624,948,72925,332,791-384.1K-1.5%3.8M6.6
April 15, 202625,332,79125,469,515-136.7K-0.5%4.3M5.87
March 31, 202625,469,51522,437,2043.0M+13.5%5.2M4.87
March 13, 202622,437,20424,326,781-1.9M-7.8%5.6M4.01
February 27, 202624,326,78122,658,5151.7M+7.4%2.8M8.63
February 13, 202622,658,51520,587,1242.1M+10.1%4.8M4.74
January 30, 202620,587,12421,212,899-625.8K-2.9%6.9M2.99
January 15, 202621,212,89920,658,615554.3K+2.7%6.4M3.29
December 31, 202520,658,61520,400,115258.5K+1.3%5.1M4.03
December 15, 202520,400,11518,807,4611.6M+8.5%5.6M3.67
November 28, 202518,807,46118,685,049122.4K+0.7%7.1M2.64
November 14, 202518,685,04917,543,5191.1M+6.5%6.9M2.7
October 31, 202517,543,51915,818,7011.7M+10.9%9.0M1.96
October 15, 202515,818,70116,080,150-261.4K-1.6%11.6M1.36
September 15, 202516,456,05615,452,4601.0M+6.5%4.2M3.9
August 29, 202515,452,46014,219,5871.2M+8.7%4.8M3.24
August 15, 202514,219,58713,168,7951.1M+8.0%4.2M3.4
July 31, 202513,168,79516,337,928-3.2M-19.4%5.9M2.23
July 15, 202516,337,92815,291,7131.0M+6.8%3.2M5.15
June 30, 202515,291,71314,717,499574.2K+3.9%3.8M4.07
June 13, 202514,717,49914,173,425544.1K+3.8%4.4M3.35
May 30, 202514,173,42516,459,891-2.3M-13.9%6.1M2.32
May 15, 202516,459,89115,944,918515.0K+3.2%1.7M9.59
April 30, 202515,944,91816,303,310-358.4K-2.2%1.6M9.98
April 15, 202516,303,31016,717,757-414.4K-2.5%2.6M6.35
March 31, 202516,717,75716,261,895455.9K+2.8%1.4M12.24
February 28, 202515,916,17215,963,087-46.9K-0.3%1.9M8.28
February 14, 202515,963,08715,298,452664.6K+4.3%2.0M7.8
January 31, 202515,298,4527,492,4617.8M+104.2%2.6M5.93
January 15, 20257,492,4616,774,769717.7K+10.6%1.9M3.88
December 31, 20246,774,7695,954,519820.2K+13.8%2.5M2.74
December 13, 20245,954,5196,449,025-494.5K-7.7%3.6M1.66
November 29, 20246,449,0255,573,898875.1K+15.7%8.5M1
November 15, 20245,573,89810,804,893-5.2M-48.4%7.0M1
October 31, 202410,804,8939,926,482878.4K+8.8%8.0M1.35
October 15, 20249,926,4829,574,903351.6K+3.7%823.8K12.05
September 30, 20249,574,9038,186,3771.4M+17.0%1.0M9.38
September 13, 20248,186,3778,113,02373.4K+0.9%649.8K12.6
August 30, 20248,113,0237,307,678805.3K+11.0%833.8K9.73
August 15, 20247,307,6786,731,811575.9K+8.6%811.3K9.01
July 31, 20246,731,8115,470,5011.3M+23.1%1.0M6.48
July 15, 20245,470,5012,838,4752.6M+92.7%1.5M3.65
June 28, 20242,838,4751,523,6091.3M+86.3%1.6M1.75
June 14, 20241,523,6091,110,142413.5K+37.2%738.1K2.06
May 31, 20241,110,142920,261189.9K+20.6%1.1M1
May 15, 2024920,261908,91311.3K+1.2%558.6K1.65
April 30, 2024908,913722,038186.9K+25.9%564.5K1.61
April 15, 2024722,038474,594247.4K+52.1%947.2K1
March 28, 2024474,594277,291197.3K+71.2%797.3K1
March 15, 2024277,291241,10736.2K+15.0%394.7K1
February 29, 2024241,10776,265164.8K+216.1%792.0K1
February 15, 202476,265168,593-92.3K-54.8%428.1K1
January 31, 2024168,593109,27259.3K+54.3%481.0K1
December 29, 202390,84080,66110.2K+12.6%182.4K1
December 15, 202380,66177,4553.2K+4.1%343.8K1
November 30, 202377,45589,352-11.9K-13.3%285.1K1
November 15, 202389,35258,40730.9K+53.0%253.2K1
October 31, 202358,40756,3722.0K+3.6%100.9K1
October 13, 202356,37259,587-3.2K-5.4%212.6K1
September 29, 202359,587268,464-208.9K-77.8%234.0K1
September 15, 2023268,464298,379-29.9K-10.0%163.7K1.64
August 31, 2023298,379214,43183.9K+39.1%107.5K2.78
August 15, 2023214,431162,60351.8K+31.9%335.6K1
July 31, 2023162,60360,777101.8K+167.5%318.3K1
July 14, 202360,77792,545-31.8K-34.3%218.9K1
June 30, 202392,545110,438-17.9K-16.2%224.4K1
June 15, 2023110,438181,883-71.4K-39.3%183.6K1
May 31, 2023181,883203181.7K+89497.5%1.6M1
May 15, 202320357,598-57.4K-99.6%276.0K1
April 28, 202357,59820,37837.2K+182.6%61.5K1
April 14, 202320,37856,678-36.3K-64.0%68.4K1
March 31, 202356,67891,521-34.8K-38.1%74.6K1
March 15, 202391,521107,560-16.0K-14.9%50.1K1.83
February 28, 2023107,560102,0815.5K+5.4%23.6K4.56
February 15, 2023102,081101,943138+0.1%40.1K2.55
January 31, 2023101,943110,774-8.8K-8.0%15.8K6.45
January 13, 2023110,774128,298-17.5K-13.7%16.3K6.8
December 30, 2022128,29894,38733.9K+35.9%33.0K3.89
December 15, 202294,3871,94692.4K+4750.3%63.9K1.48
November 30, 20221,946101,480-99.5K-98.1%648.6K1
November 15, 2022101,4800101.5K+100.0%192.4K1

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