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HowShorted

CMPS short interest Nasdaq Global Market

COMPASS Pathways Plc American. 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
15,235,260
vs previous settlement
+766,242 (+5.3%)
days to cover
5.60
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for CMPS 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 CMPS days to cover

Fails to deliver

The SEC's fails-to-deliver figure for CMPS: 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.

Latest balance
8,724
14 Sep 2026
Highest in window
990,545
6 Feb 2026
Days with a balance
96
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for COMPASS Pathways Plc American 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 991K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202615,235,260+766,2425.60
31 Aug 202614,469,018+369,3376.48
14 Aug 202614,099,681+458,7884.53
31 Jul 202613,640,893+797,3273.57
15 Jul 202612,843,566+2,669,8852.60
30 Jun 202610,173,681+1,815,6353.10
15 Jun 20268,358,046+1,028,0642.20
29 May 20267,329,982โˆ’368,1151.71
15 May 20267,698,097โˆ’2,068,4472.05
30 Apr 20269,766,544โˆ’1,246,8981.15
15 Apr 202611,013,442+2,120,8477.38
31 Mar 20268,892,595+2,515,9003.88
13 Mar 20266,376,695+89,0192.47
27 Feb 20266,287,676+823,1441.00
13 Feb 20265,464,532โˆ’743,5734.31
30 Jan 20266,208,105+1,174,2535.02
15 Jan 20265,033,852+76,6782.97
31 Dec 20254,957,174โˆ’626,5715.67
15 Dec 20255,583,745โˆ’660,3633.09
28 Nov 20256,244,108โˆ’2,0244.95
14 Nov 20256,246,132+1,533,3662.12
31 Oct 20254,712,766โˆ’759,9403.95
15 Oct 20255,472,706โˆ’1,096,9062.84
30 Sep 20256,569,612โˆ’158,8584.51
15 Sep 20256,728,470โˆ’1,046,7933.57
29 Aug 20257,775,263โˆ’788,6474.47
15 Aug 20258,563,910+126,3575.67
31 Jul 20258,437,553โˆ’343,4713.36
15 Jul 20258,781,024โˆ’709,5373.44
30 Jun 20259,490,561+4,198,9551.27
13 Jun 20255,291,606+456,2393.08
30 May 20254,835,367โˆ’265,6283.21
15 May 20255,100,995+114,6319.03
30 Apr 20254,986,364+144,2044.39
15 Apr 20254,842,160โˆ’387,8655.04
31 Mar 20255,230,025โˆ’407,5034.92
14 Mar 20255,637,528โˆ’534,5815.55
28 Feb 20256,172,109+732,6245.45
14 Feb 20255,439,485+969,0324.35
31 Jan 20254,470,453+161,8394.04
15 Jan 20254,308,614+413,8692.77
31 Dec 20243,894,745+19,7345.89
13 Dec 20243,875,011+21,7045.21
29 Nov 20243,853,307โˆ’319,7906.08
15 Nov 20244,173,097โˆ’1,274,9962.69
31 Oct 20245,448,093โˆ’359,5564.86
15 Oct 20245,807,649โˆ’577,4589.04
30 Sep 20246,385,107+515,95415.02
13 Sep 20245,869,153+271,95013.72
30 Aug 20245,597,203+919,0499.07
15 Aug 20244,678,154+831,0529.84
31 Jul 20243,847,102โˆ’519,1729.82
15 Jul 20244,366,274+81,69612.46
28 Jun 20244,284,578+44,07113.87
14 Jun 20244,240,507+628,2377.15
31 May 20243,612,270+194,07412.52
15 May 20243,418,196+10,0869.07
30 Apr 20243,408,110+68,9246.98
15 Apr 20243,339,186+209,3735.43
28 Mar 20243,129,813โˆ’20,5794.36
15 Mar 20243,150,392โˆ’585,3134.07
29 Feb 20243,735,705โˆ’188,4954.75
15 Feb 20243,924,200+374,7546.51
31 Jan 20243,549,446+60,3424.63
12 Jan 20243,489,104+427,0285.57
29 Dec 20233,062,076โˆ’1,285,3184.77
15 Dec 20234,347,394+488,3584.89
30 Nov 20233,859,036โˆ’50,27013.11
15 Nov 20233,909,306สณโˆ’177,67011.09
31 Oct 20234,086,976+19,73710.67
13 Oct 20234,067,239โˆ’41,3596.07
29 Sep 20234,108,598+171,6976.49
15 Sep 20233,936,901+6,9839.91
31 Aug 20233,929,918+115,6438.52
15 Aug 20233,814,275+134,87414.41
31 Jul 20233,679,401+217,40512.06
14 Jul 20233,461,996+1,066,4384.87
30 Jun 20232,395,558โˆ’30,17410.67
15 Jun 20232,425,732โˆ’85,95313.47
31 May 20232,511,685โˆ’214,30814.06
15 May 20232,725,993โˆ’18,87113.52
28 Apr 20232,744,864โˆ’25,01813.22
14 Apr 20232,769,882โˆ’1,504,1524.97
31 Mar 20234,274,034โˆ’289,40815.81
15 Mar 20234,563,442โˆ’24,53321.13
28 Feb 20234,587,975+127,64518.35
15 Feb 20234,460,330+350,03920.05
31 Jan 20234,110,291+100,69113.09
13 Jan 20234,009,600+135,41711.91
30 Dec 20223,874,183โˆ’23,43216.18
15 Dec 20223,897,615โˆ’4,40115.85
30 Nov 20223,902,016โˆ’60,45120.94
15 Nov 20223,962,467+54,52910.58
31 Oct 20223,907,938+9,05813.54
14 Oct 20223,898,880+40,36510.47
30 Sep 20223,858,515+3,81810.73
15 Sep 20223,854,697+213,82111.87
31 Aug 20223,640,876+251,8739.64
15 Aug 20223,389,003โˆ’86,6797.53
29 Jul 20223,475,682โˆ’149,4828.22
15 Jul 20223,625,164+178,42610.68
30 Jun 20223,446,738+484,87611.79
15 Jun 20222,961,862โˆ’99,86310.87
31 May 20223,061,725+40,31110.08
13 May 20223,021,414+232,6836.77
29 Apr 20222,788,731+78,39810.12
14 Apr 20222,710,333+226,91610.73
31 Mar 20222,483,417+211,2827.98
15 Mar 20222,272,135โˆ’93011.89
28 Feb 20222,273,065+204,7897.91
15 Feb 20222,068,276+242,9708.50
31 Jan 20221,825,306+258,0704.72
14 Jan 20221,567,236+50,6662.98
31 Dec 20211,516,570+615,1332.60
15 Dec 2021901,437+92,7851.23
30 Nov 2021808,652โˆ’161,3731.23
15 Nov 2021970,025โˆ’151,7241.00
29 Oct 20211,121,749+347,5531.87
15 Oct 2021774,196+213,9222.58
30 Sep 2021560,274โˆ’1,0201.94
15 Sep 2021561,294+154,4051.87
31 Aug 2021406,889โˆ’222,3101.36
13 Aug 2021629,199+86,9471.56
30 Jul 2021542,252+75,1321.67
15 Jul 2021467,120โˆ’835,4471.17
30 Jun 20211,302,567โˆ’186,0412.26
15 Jun 20211,488,608สณโˆ’146,3793.36
28 May 20211,634,987โˆ’234,5604.77
14 May 20211,869,547+76,2224.63
30 Apr 20211,793,325โˆ’44,8115.26
15 Apr 20211,838,136+223,6345.80
31 Mar 20211,614,502+94,8144.63
15 Mar 20211,519,688+336,3774.55
26 Feb 20211,183,311+235,9882.01
12 Feb 2021947,323โˆ’52,7942.62
29 Jan 20211,000,117+40,9554.48
15 Jan 2021959,162+13,8692.96
31 Dec 2020945,293+2,4894.03
15 Dec 2020942,804โˆ’122,5692.37
30 Nov 20201,065,373+24,1693.25
13 Nov 20201,041,204+142,7233.22
30 Oct 2020898,481+107,5491.92
15 Oct 2020790,932+417,2331.00
30 Sep 2020373,699โ€“1.00

Scroll inside the table for earlier settlements, back to 30 Sep 2020.

Questions

Frequently asked questions

What is CMPS's short interest?
15,235,260 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 766,242 from the previous settlement.
Why is there no percentage for CMPS?
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 CMPS's days to cover?
5.60 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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