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HowShorted

CSAN short interest NYSE

Cosan S.A. American Depositary. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings).

Shares short
4,352,659
vs previous settlement
+736,405 (+20.4%)
days to cover
1.36
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for CSAN: 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
31,769
10 Sep 2026
Highest in window
867,337
7 Nov 2025
Days with a balance
145
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Cosan S.A. American Depositary 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 867K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20264,352,659+736,4051.36
31 Aug 20263,616,254โˆ’109,6011.15
14 Aug 20263,725,855+1,321,5402.86
31 Jul 20262,404,315+169,7972.45
15 Jul 20262,234,518โˆ’1,875,2812.17
30 Jun 20264,109,799+130,2572.41
15 Jun 20263,979,542+802,5341.40
29 May 20263,177,008+1,271,2681.09
15 May 20261,905,740+275,7591.02
30 Apr 20261,629,981โˆ’1,951,1631.00
15 Apr 20263,581,144+612,1162.04
31 Mar 20262,969,028+1,938,2501.06
13 Mar 20261,030,778+207,0821.00
27 Feb 2026823,696โˆ’1,292,7881.00
13 Feb 20262,116,484+1,316,5761.00
30 Jan 2026799,908โˆ’2,190,4541.00
15 Jan 20262,990,362โˆ’4,363,7361.01
31 Dec 20257,354,098โˆ’2,707,4243.02
15 Dec 202510,061,522โˆ’595,3366.14
28 Nov 202510,656,858โˆ’397,3387.30
14 Nov 202511,054,196+6,252,3552.77
31 Oct 20254,801,841+868,8112.95
15 Oct 20253,933,030+1,272,0462.74
30 Sep 20252,660,984+620,5131.00
15 Sep 20252,040,471โˆ’354,9691.00
29 Aug 20252,395,440โˆ’329,8471.88
15 Aug 20252,725,287โˆ’22,7302.15
31 Jul 20252,748,017+745,5171.86
15 Jul 20252,002,500โˆ’142,6511.33
30 Jun 20252,145,151+159,4471.21
13 Jun 20251,985,704โˆ’158,8711.45
30 May 20252,144,575+65,5321.10
15 May 20252,079,043+95,0401.75
30 Apr 20251,984,003+620,9571.52
15 Apr 20251,363,046โˆ’1,529,6881.00
31 Mar 20252,892,734+122,6612.99
14 Mar 20252,770,073+57,7363.01
28 Feb 20252,712,337+490,4882.91
14 Feb 20252,221,849+505,6131.80
31 Jan 20251,716,236โˆ’163,4161.27
15 Jan 20251,879,652โˆ’170,8631.77
31 Dec 20242,050,515+579,5751.65
13 Dec 20241,470,940+559,5221.16
29 Nov 2024911,418โˆ’517,6181.00
15 Nov 20241,429,036โˆ’37,4152.74
31 Oct 20241,466,451โˆ’215,1402.95
15 Oct 20241,681,591+53,1132.74
30 Sep 20241,628,478+587,2342.61
13 Sep 20241,041,244+518,5401.81
30 Aug 2024522,704โˆ’637,5681.26
15 Aug 20241,160,272+629,2521.91
31 Jul 2024531,020+44,6921.08
15 Jul 2024486,328โˆ’218,7001.19
28 Jun 2024705,028โˆ’172,4291.54
14 Jun 2024877,457+5,1032.08
31 May 2024872,354โˆ’48,0582.57
15 May 2024920,412+273,7852.60
30 Apr 2024646,627โˆ’51,9601.25
15 Apr 2024698,587โˆ’16,6401.01
28 Mar 2024715,227โˆ’53,2343.13
15 Mar 2024768,461+60,2553.63
29 Feb 2024708,206โˆ’9,7283.71
15 Feb 2024717,934โˆ’37,5752.72
31 Jan 2024755,509+83,5663.59
12 Jan 2024671,943+36,1743.50
29 Dec 2023635,769โˆ’19,8551.62
15 Dec 2023655,624โˆ’98,8412.13
30 Nov 2023754,465+28,5593.20
15 Nov 2023725,906+126,1012.25
31 Oct 2023599,805+33,3892.51
13 Oct 2023566,416โˆ’95,5751.81
29 Sep 2023661,991โˆ’112,7353.32
15 Sep 2023774,726โˆ’55,4153.04
31 Aug 2023830,141โˆ’350,2792.86
15 Aug 20231,180,420โˆ’319,4133.33
31 Jul 20231,499,833+27,0074.27
14 Jul 20231,472,826+72,3022.88
30 Jun 20231,400,524+36,7172.61
15 Jun 20231,363,807โˆ’113,3083.17
31 May 20231,477,115โˆ’12,3153.48
15 May 20231,489,430+16,0404.67
28 Apr 20231,473,390+84,1574.05
14 Apr 20231,389,233โˆ’180,6502.52
31 Mar 20231,569,883+213,8213.41
15 Mar 20231,356,062โˆ’315,0913.52
28 Feb 20231,671,153โˆ’308,6963.51
15 Feb 20231,979,849+671,0378.18
31 Jan 20231,308,812โˆ’502,2872.38
13 Jan 20231,811,099โˆ’370,2195.48
30 Dec 20222,181,318+1,020,8234.43
15 Dec 20221,160,495+85,5664.14
30 Nov 20221,074,929โˆ’104,6083.75
15 Nov 20221,179,537+198,2163.11
31 Oct 2022981,321โˆ’43,8663.50
14 Oct 20221,025,187โˆ’100,8431.57
30 Sep 20221,126,030+121,4663.67
15 Sep 20221,004,564โˆ’17,8647.92
31 Aug 20221,022,428โˆ’4,7976.36
15 Aug 20221,027,225โˆ’27,3116.27
29 Jul 20221,054,536โˆ’600,8762.98
15 Jul 20221,655,412+26,7479.34
30 Jun 20221,628,665โˆ’160,0926.49
15 Jun 20221,788,757โˆ’162,6378.26
31 May 20221,951,394+256,4538.12
13 May 20221,694,941+53,4317.20
29 Apr 20221,641,510+194,1728.45
14 Apr 20221,447,338โˆ’23,1138.67
31 Mar 20221,470,451+11,9526.55
15 Mar 20221,458,499โˆ’83,1799.26
28 Feb 20221,541,678+3,86011.10
15 Feb 20221,537,818+25,96210.59
31 Jan 20221,511,856โˆ’37,2715.89
14 Jan 20221,549,127+16,06217.09
31 Dec 20211,533,065+32,15218.55
15 Dec 20211,500,913โˆ’44,11814.31
30 Nov 20211,545,031โˆ’30,90913.04
15 Nov 20211,575,940+89,77017.21
29 Oct 20211,486,170โˆ’134,9796.03
15 Oct 20211,621,149+40,69110.82
30 Sep 20211,580,458+13,85110.14
15 Sep 20211,566,607+12,2138.80
31 Aug 20211,554,394โˆ’9,6028.51
13 Aug 20211,563,996โˆ’10,1568.78
30 Jul 20211,574,152+62,0226.59
15 Jul 20211,512,130+27,8295.26
30 Jun 20211,484,301โˆ’269,0155.18
15 Jun 20211,753,316สณ+520,6353.97
28 May 20211,232,681+139,1764.66
14 May 20211,093,505โˆ’149,4859.38
30 Apr 20211,242,990โˆ’196,1806.07
15 Apr 20211,439,170โˆ’317,7459.60
31 Mar 20211,756,915โˆ’4,322,0112.90
15 Mar 20216,078,926โ€“5.13

Scroll inside the table for earlier settlements, back to 15 Mar 2021.

Questions

Frequently asked questions

What is CSAN's short interest?
4,352,659 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 736,405 from the previous settlement.
Why is there no percentage for CSAN?
Because no defensible share count exists to divide by: no SEC filer maps to the symbol (funds, notes, preferreds, warrants and foreign listings). No SEC filer maps to this symbol in EDGAR's ticker file. That is the normal case for funds, exchange-traded notes, preferred shares, warrants, units and foreign listings, none of which file a share count we could divide by.
What is CSAN's days to cover?
1.36 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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