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HowShorted

CNI short interest NYSE

Canadian National Railway. 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
5,402,423
vs previous settlement
โˆ’1,329,856 (-19.8%)
days to cover
3.25
Settlement date
15 Sep 2026

Shares short over time

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

Fails to deliver

The SEC's fails-to-deliver figure for CNI: 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
2,458
14 Sep 2026
Highest in window
383,368
17 Feb 2026
Days with a balance
122
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Canadian National Railway 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 383K shares.

History

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

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 20265,402,423โˆ’1,329,8563.25
31 Aug 20266,732,279+1,912,2066.48
14 Aug 20264,820,073+168,0783.69
31 Jul 20264,651,995+1,636,0632.55
15 Jul 20263,015,932+209,7682.18
30 Jun 20262,806,164โˆ’3,237,9551.69
15 Jun 20266,044,119โˆ’1,289,5793.07
29 May 20267,333,698+2,246,9666.15
15 May 20265,086,732+2,868,7584.48
30 Apr 20262,217,974+71,8991.36
15 Apr 20262,146,075+65,9131.62
31 Mar 20262,080,162โˆ’3,156,8651.19
13 Mar 20265,237,027โˆ’1,065,1372.67
27 Feb 20266,302,164+2,782,6943.29
13 Feb 20263,519,470+1,293,1021.62
30 Jan 20262,226,368โˆ’1,792,9481.38
15 Jan 20264,019,316โˆ’198,6283.65
31 Dec 20254,217,944+705,1214.27
15 Dec 20253,512,823โˆ’409,7591.92
28 Nov 20253,922,582สณ+110,5482.79
14 Nov 20253,812,034+1,072,4102.92
31 Oct 20252,739,624โˆ’1,605,7781.86
15 Oct 20254,345,402โˆ’904,5313.25
30 Sep 20255,249,933โˆ’4,894,1923.22
15 Sep 202510,144,125+1,024,0805.05
29 Aug 20259,120,045+4,009,8985.56
15 Aug 20255,110,147โˆ’1,075,8603.06
31 Jul 20256,186,007+235,7492.82
15 Jul 20255,950,258โˆ’373,6425.23
30 Jun 20256,323,900+852,1874.23
13 Jun 20255,471,713+2,119,3133.56
30 May 20253,352,400+1,045,6393.10
15 May 20252,306,761+417,0341.45
30 Apr 20251,889,727โˆ’330,3091.55
15 Apr 20252,220,036+232,9241.22
31 Mar 20251,987,112โˆ’1,077,5761.67
14 Mar 20253,064,688โˆ’170,7241.65
28 Feb 20253,235,412+1,104,0742.40
14 Feb 20252,131,338+531,6771.38
31 Jan 20251,599,661โˆ’633,6581.11
15 Jan 20252,233,319+94,4021.85
31 Dec 20242,138,917โˆ’403,2772.19
13 Dec 20242,542,194+640,6131.53
29 Nov 20241,901,581โˆ’254,9151.50
15 Nov 20242,156,496โˆ’109,6761.74
31 Oct 20242,266,172โˆ’76,2861.68
15 Oct 20242,342,458โˆ’245,4471.89
30 Sep 20242,587,905โˆ’616,2192.48
13 Sep 20243,204,124+84,2852.12
30 Aug 20243,119,839+844,5273.54
15 Aug 20242,275,312โˆ’92,3552.16
31 Jul 20242,367,667โˆ’1,391,1361.86
15 Jul 20243,758,803โˆ’716,7413.66
28 Jun 20244,475,544โˆ’1,670,4912.21
14 Jun 20246,146,035โˆ’1,724,5735.57
31 May 20247,870,608+1,639,55710.46
15 May 20246,231,051+69,8976.59
30 Apr 20246,161,154โˆ’623,1215.23
15 Apr 20246,784,275โˆ’218,2417.24
28 Mar 20247,002,516โˆ’820,6427.65
15 Mar 20247,823,158โˆ’1,303,9457.60
29 Feb 20249,127,103โˆ’404,40410.78
15 Feb 20249,531,507+214,1529.85
31 Jan 20249,317,355+3,857,3247.25
12 Jan 20245,460,031+73,6695.98
29 Dec 20235,386,362โˆ’2,593,2997.38
15 Dec 20237,979,661โˆ’3,739,4687.16
30 Nov 202311,719,129+722,58511.03
15 Nov 202310,996,544+2,244,9447.89
31 Oct 20238,751,600+581,9126.02
13 Oct 20238,169,688+336,5967.20
29 Sep 20237,833,092โˆ’162,2946.74
15 Sep 20237,995,386+332,2295.29
31 Aug 20237,663,157+2,605,18610.36
15 Aug 20235,057,971โˆ’338,2535.30
31 Jul 20235,396,224โˆ’2,268,5063.49
14 Jul 20237,664,730+28,7047.25
30 Jun 20237,636,026+31,0877.44
15 Jun 20237,604,939โˆ’242,3407.20
31 May 20237,847,279+1,601,5216.37
15 May 20236,245,758+1,093,9964.44
28 Apr 20235,151,762โˆ’1,187,9224.14
14 Apr 20236,339,684+123,3375.43
31 Mar 20236,216,347+878,7405.87
15 Mar 20235,337,607+2,674,3864.99
28 Feb 20232,663,221+562,9882.60
15 Feb 20232,100,233โˆ’263,8072.02
31 Jan 20232,364,040โˆ’3,269,8302.16
13 Jan 20235,633,870+508,1966.44
30 Dec 20225,125,674โˆ’2,020,2855.88
15 Dec 20227,145,959+1,292,7695.74
30 Nov 20225,853,190+131,8516.32
15 Nov 20225,721,339+416,2874.81
31 Oct 20225,305,052โˆ’1,713,6803.72
14 Oct 20227,018,732+673,4986.97
30 Sep 20226,345,234โˆ’8,2255.05
15 Sep 20226,353,459+916,3844.20
31 Aug 20225,437,075+137,1555.84
15 Aug 20225,299,920+122,7825.66
29 Jul 20225,177,138โˆ’448,5355.26
15 Jul 20225,625,673+305,5185.45
30 Jun 20225,320,155+1,435,4864.14
15 Jun 20223,884,669โˆ’1,005,9412.46
31 May 20224,890,610+3,040,5762.79
13 May 20221,850,034โˆ’1,012,5181.00
29 Apr 20222,862,552+792,7752.08
14 Apr 20222,069,777โˆ’119,5861.84
31 Mar 20222,189,363+319,1992.06
15 Mar 20221,870,164โˆ’623,2031.14
28 Feb 20222,493,367โˆ’1,695,0932.18
15 Feb 20224,188,460+878,6423.25
31 Jan 20223,309,818+396,1531.78
14 Jan 20222,913,665โˆ’1,300,2902.90
31 Dec 20214,213,955โˆ’540,1583.08
15 Dec 20214,754,113+601,2902.90
30 Nov 20214,152,823+1,220,3444.88
15 Nov 20212,932,479โˆ’469,4853.66
29 Oct 20213,401,964โˆ’235,1001.99
15 Oct 20213,637,064โˆ’1,257,4283.41
30 Sep 20214,894,492โˆ’2,297,9272.34
15 Sep 20217,192,419โˆ’5,885,5091.49
31 Aug 202113,077,928โˆ’1,849,2775.32
13 Aug 202114,927,205โˆ’505,67112.05
30 Jul 202115,432,876+513,1758.94
15 Jul 202114,919,701โˆ’344,0529.14
30 Jun 202115,263,753+387,9059.85
15 Jun 202114,875,848สณ+2,233,7527.67
28 May 202112,642,096+6,843,2403.54
14 May 20215,798,856+1,394,6066.01
30 Apr 20214,404,250+2,820,4902.13
15 Apr 20211,583,760โˆ’308,0092.97
31 Mar 20211,891,769+768,7521.91
15 Mar 20211,123,017โˆ’888,3291.14
26 Feb 20212,011,346โˆ’320,3082.71
12 Feb 20212,331,654+1,038,3102.79
29 Jan 20211,293,344โˆ’249,0461.56
15 Jan 20211,542,390+7,2272.30
31 Dec 20201,535,163+198,1852.79
15 Dec 20201,336,978โˆ’388,2992.41
30 Nov 20201,725,277โˆ’25,8352.74
13 Nov 20201,751,112โˆ’186,2332.17
30 Oct 20201,937,345โˆ’179,6802.26
15 Oct 20202,117,025โˆ’734,4684.13
30 Sep 20202,851,493+142,6355.37
15 Sep 20202,708,858โˆ’651,9864.60
31 Aug 20203,360,844+425,1145.29
14 Aug 20202,935,730+793,3134.21
31 Jul 20202,142,417+25,2492.08
15 Jul 20202,117,168+308,5472.97
30 Jun 20201,808,621โˆ’282,2662.52
15 Jun 20202,090,887โˆ’70,2112.40
29 May 20202,161,098โˆ’26,1913.06
15 May 20202,187,289สณโˆ’678,5992.12
30 Apr 20202,865,888โˆ’387,1672.44
15 Apr 20203,253,055โˆ’465,6253.48
31 Mar 20203,718,680โˆ’750,8022.47
13 Mar 20204,469,482โˆ’437,4173.11
28 Feb 20204,906,899+872,7544.78
14 Feb 20204,034,145โˆ’465,7216.22
31 Jan 20204,499,866สณ+1,509,9874.89
15 Jan 20202,989,879+63,4704.92
31 Dec 20192,926,409โˆ’496,7935.06
13 Dec 20193,423,202โˆ’639,6064.10
29 Nov 20194,062,808สณ+354,9004.12
15 Nov 20193,707,908+22,0163.79
31 Oct 20193,685,892โˆ’930,7383.71
15 Oct 20194,616,630โˆ’271,3874.74
30 Sep 20194,888,017+377,7976.52
13 Sep 20194,510,220+844,1136.00
30 Aug 20193,666,107+210,5025.70
15 Aug 20193,455,605+77,0994.12
31 Jul 20193,378,506โˆ’667,4373.58
15 Jul 20194,045,943+156,8396.30
28 Jun 20193,889,104โˆ’122,8626.52
14 Jun 20194,011,966สณโˆ’422,9094.71
31 May 20194,434,875+14,5965.83
15 May 20194,420,279+592,3316.35
30 Apr 20193,827,948โˆ’1,032,8724.22
15 Apr 20194,860,820+323,5753.54
29 Mar 20194,537,245โˆ’129,2024.93
15 Mar 20194,666,447+675,3795.37
28 Feb 20193,991,068+843,0184.42
15 Feb 20193,148,050+661,1433.13
31 Jan 20192,486,907โˆ’907,4452.20
15 Jan 20193,394,352โˆ’601,1783.68
31 Dec 20183,995,530+1,082,0144.12
14 Dec 20182,913,516โˆ’404,6532.37
30 Nov 20183,318,169+382,7253.44
15 Nov 20182,935,444โˆ’771,6952.86
31 Oct 20183,707,139โˆ’975,4542.14
15 Oct 20184,682,593สณ+920,2973.42
28 Sep 20183,762,296+323,7983.70
14 Sep 20183,438,498โˆ’656,4433.94
31 Aug 20184,094,941+369,4445.74
15 Aug 20183,725,497โˆ’1,004,9744.65
31 Jul 20184,730,471โˆ’923,8553.82
13 Jul 20185,654,326โˆ’71,1035.64
29 Jun 20185,725,429โˆ’1,260,4976.13
15 Jun 20186,985,926โˆ’987,1127.01
31 May 20187,973,038โˆ’37,0677.67
15 May 20188,010,105+750,4417.90
30 Apr 20187,259,664+410,9184.80
13 Apr 20186,848,746+664,8294.53
29 Mar 20186,183,917โˆ’498,0524.43
15 Mar 20186,681,969โˆ’2,047,4084.08
28 Feb 20188,729,377โˆ’3,8154.20
15 Feb 20188,733,192โˆ’4,1475.46
31 Jan 20188,737,339+364,5445.13
12 Jan 20188,372,795สณ+1,096,0307.79
29 Dec 20177,276,765โ€“10.20

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

Questions

Frequently asked questions

What is CNI's short interest?
5,402,423 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, down 1,329,856 from the previous settlement.
Why is there no percentage for CNI?
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 CNI's days to cover?
3.25 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.

Ranked companies with a percentage: most shorted US stocks. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.