ShortInterestHistory.com

CATX Short Interest History

CATX Short Interest (July 31, 2026 Update)
Short interest for CATX was 23.5M as of July 31, 2026, +3.0% from the prior report.
This page tracks CATX short interest over time, including historical values, changes between reports, and days to cover.

Perspective Therapeutics, Inc. | CATX | AMEX | Latest report: July 31, 2026

Current Short Interest23.5M
Prior Short Interest22.8M
Change Shares689.4K
Change %+3.0%
Average Daily Volume915.0K
Days to Cover25.65

At the latest settlement date of July 31, 2026, Perspective Therapeutics, Inc. (CATX) showed reported short interest of 23,472,935 shares. That compared with 22,783,577 shares in the prior report, a change of 689.4K shares, or +3.0%. The latest reported days to cover was 25.65, based on average daily volume of 915.0K.

The historical data currently tracked for CATX includes 80 reported entries from February 28, 2023 to July 31, 2026. Over that span, reported short interest has ranged from 257.5K to 29.8M 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 CATX

Settlement DateShort InterestPrior Short InterestChange SharesChange %Average Daily VolumeDays to Cover
July 31, 202623,472,93522,783,577689.4K+3.0%915.0K25.65
July 15, 202622,783,57722,724,26559.3K+0.3%2.3M10.01
June 30, 202622,724,26513,633,7089.1M+66.7%3.1M7.28
June 15, 202613,633,70812,763,401870.3K+6.8%1.5M8.99
May 29, 202612,763,40112,615,884147.5K+1.2%1.1M11.31
May 15, 202612,615,88412,997,351-381.5K-2.9%1.6M7.96
April 30, 202612,997,35113,672,045-674.7K-4.9%1.5M8.43
April 15, 202613,672,04514,123,380-451.3K-3.2%759.9K17.99
March 31, 202614,123,38010,094,0624.0M+39.9%1.9M7.26
March 13, 202610,094,0629,644,608449.5K+4.7%1.3M7.83
February 27, 20269,644,6089,610,82633.8K+0.4%2.1M4.53
February 13, 20269,610,8269,540,24270.6K+0.7%4.9M1.97
January 30, 20269,540,2428,211,1851.3M+16.2%9.5M1.01
January 15, 20268,211,1858,542,582-331.4K-3.9%1.5M5.33
December 31, 20258,542,5828,541,7418410.0%1.1M8.08
December 15, 20258,541,7417,152,4241.4M+19.4%1.7M5.01
November 28, 20257,152,4246,720,024432.4K+6.4%2.0M3.59
November 14, 20256,720,0246,582,745137.3K+2.1%2.0M3.31
October 31, 20256,582,7456,492,93889.8K+1.4%1.8M3.66
October 15, 20256,492,9386,776,377-283.4K-4.2%1.4M4.73
September 15, 20256,671,6936,373,501298.2K+4.7%817.3K8.16
August 29, 20256,373,5016,285,16888.3K+1.4%598.7K10.65
August 15, 20256,285,1686,496,317-211.1K-3.3%670.4K9.38
July 31, 20256,496,3176,347,204149.1K+2.3%769.3K8.44
July 15, 20256,347,2046,242,706104.5K+1.7%1.2M5.38
June 30, 20256,242,7065,616,516626.2K+11.1%1.7M3.76
June 13, 20255,616,5165,278,241338.3K+6.4%2.1M2.7
May 30, 20255,278,2415,654,023-375.8K-6.6%884.2K5.97
May 15, 20255,654,0235,266,566387.5K+7.4%590.4K9.58
April 30, 20255,266,5665,022,843243.7K+4.9%688.4K7.65
April 15, 20255,022,8435,710,412-687.6K-12.0%1.2M4.32
March 31, 20255,710,4125,939,698-229.3K-3.9%639.7K8.93
February 28, 20255,909,5005,480,817428.7K+7.8%644.2K9.17
February 14, 20255,480,8175,417,50563.3K+1.2%553.7K9.9
January 31, 20255,417,5057,633,209-2.2M-29.0%1.1M4.98
January 15, 20257,633,2098,931,987-1.3M-14.5%1.2M6.37
December 31, 20248,931,9879,912,952-981.0K-9.9%1.3M6.89
December 13, 20249,912,95210,445,797-532.8K-5.1%1.4M6.86
November 29, 202410,445,7978,277,0332.2M+26.2%4.4M2.37
November 15, 20248,277,0338,022,108254.9K+3.2%907.1K9.12
October 31, 20248,022,1087,881,299140.8K+1.8%598.6K13.4
October 15, 20247,881,2999,589,415-1.7M-17.8%1.2M6.69
September 30, 20249,589,4157,141,5412.4M+34.3%1.3M7.45
September 13, 20247,141,5416,422,919718.6K+11.2%817.6K8.74
August 30, 20246,422,9196,951,430-528.5K-7.6%709.0K9.06
August 15, 20246,951,4306,782,317169.1K+2.5%572.9K12.13
July 31, 20246,782,3176,633,966148.4K+2.2%624.6K10.86
July 15, 20246,633,9664,306,5552.3M+54.0%857.4K7.74
June 28, 20244,306,55529,826,776-25.5M-85.6%2.0M2.1
June 14, 202429,826,77623,435,4596.4M+27.3%6.9M4.31
May 31, 202423,435,45915,259,1048.2M+53.6%7.4M3.17
May 15, 202415,259,10413,594,0411.7M+12.2%6.3M2.44
April 30, 202413,594,04110,432,6953.2M+30.3%4.8M2.84
April 15, 202410,432,6958,092,7362.3M+28.9%8.0M1.31
March 28, 20248,092,7361,880,6666.2M+330.3%3.7M2.18
March 15, 20241,880,6661,872,3508.3K+0.4%4.4M1
February 29, 20241,872,3503,005,886-1.1M-37.7%1.4M1.33
February 15, 20243,005,8862,053,847952.0K+46.4%2.8M1.09
January 31, 20242,053,8471,934,411119.4K+6.2%2.8M1
December 29, 20231,932,8771,808,113124.8K+6.9%1.5M1.31
December 15, 20231,808,1131,840,409-32.3K-1.8%373.5K4.84
November 30, 20231,840,4091,932,984-92.6K-4.8%242.3K7.59
November 15, 20231,932,9842,048,452-115.5K-5.6%314.8K6.14
October 31, 20232,048,4521,928,051120.4K+6.2%313.0K6.55
October 13, 20231,928,0512,029,917-101.9K-5.0%305.8K6.31
September 29, 20232,029,9171,583,665446.3K+28.2%4.7M1
September 15, 20231,583,6651,567,23416.4K+1.0%282.6K5.6
August 31, 20231,567,2341,779,798-212.6K-11.9%382.2K4.1
August 15, 20231,779,7981,694,49385.3K+5.0%386.5K4.6
July 31, 20231,694,4931,642,99651.5K+3.1%187.5K9.04
July 14, 20231,642,9961,700,565-57.6K-3.4%162.4K10.12
June 30, 20231,700,5651,556,066144.5K+9.3%481.0K3.54
June 15, 20231,556,0661,788,222-232.2K-13.0%236.8K6.57
May 31, 20231,788,2221,921,902-133.7K-7.0%475.3K3.76
May 15, 20231,921,9022,541,069-619.2K-24.4%375.0K5.13
April 28, 20232,541,0692,506,13734.9K+1.4%502.2K5.06
April 14, 20232,506,1372,452,33353.8K+2.2%548.3K4.57
March 31, 20232,452,333257,4982.2M+852.4%1.5M1.65
March 15, 2023257,498371,218-113.7K-30.6%600.0K1
February 28, 2023371,218272,41698.8K+36.3%172.5K2.15

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