XOOMAR
Get a free API key

Canadian National Railway (CNI)

Canadian National Railway on one page: short interest, daily short volume, fails to deliver, planned sales and 13F holders. Listed on NYSE, classified by the SEC as railroads, line-haul operating.

Download CSV

6.4M

Short interest

settlement 2026-09-30

5.0

Days to cover

+1.8 days vs prior

72.5%

Short share of volume

2026-10-09

2,458

Fails to deliver

settlement 2026-09-14

As of 2026-10-09.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in CNI is 6,384,869 shares, down 347,410 shares over the last month. Over the last 48 readings it ranged from 1,599,661 shares (31 January 2025) to 10,144,125 shares (15 September 2025). At the reported average volume of 1.3M shares a day that is 5.0 days to cover.

Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/cni" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
PreviewDark previewAdd ?theme=dark to the src for a dark chart.
SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-306,384,869+18.2%1,264,2615.05
2026-09-155,402,423-19.8%1,662,0543.25
2026-08-316,732,279+39.7%1,038,2016.48
2026-08-144,820,073+3.6%1,305,7113.69
2026-07-314,651,995+54.3%1,822,5882.55
2026-07-153,015,932+7.5%1,381,4942.18
2026-06-302,806,164-53.6%1,658,9881.69
2026-06-156,044,119-17.6%1,965,8343.07
2026-05-297,333,698+44.2%1,191,6986.15
2026-05-155,086,732+129.3%1,134,3694.48
2026-04-302,217,974+3.4%1,626,8061.36
2026-04-152,146,075+3.2%1,322,0811.62
2026-03-312,080,162-60.3%1,743,6251.19
2026-03-135,237,027-16.9%1,959,8292.67
2026-02-276,302,164+79.1%1,912,8673.29
2026-02-133,519,470+58.1%2,172,4911.62
2026-01-302,226,368-44.6%1,618,0841.38
2026-01-154,019,316-4.7%1,100,5103.65
2025-12-314,217,944+20.1%988,7574.27
2025-12-153,512,823-10.4%1,827,4491.92
2025-11-283,922,582+6.3%1,405,0772.79
2025-11-143,812,034+39.1%1,304,7802.92
2025-10-312,739,624-37.0%1,471,2061.86
2025-10-154,345,402-17.2%1,336,3163.25

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 9 October 2026, the short share of CNI volume is 72.5%, down 2.3 points over the last five sessions. Over the last 30 readings it ranged from 44.0% (22 September 2026) to 98.3% (4 September 2026). The latest reading is 5.5 points above the 30-session average of 67.0%, on 272K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-09197K272K72.5%0
2026-10-08165K238K69.5%28
2026-10-07198K305K64.9%9
2026-10-06262K357K73.4%30
2026-10-05293K362K81.0%2,959
2026-10-02208K278K74.9%1
2026-10-01250K325K77.1%127
2026-09-30290K365K79.3%0
2026-09-29225K289K78.0%0
2026-09-28351K651K53.8%0
2026-09-25412K590K69.9%137
2026-09-24249K495K50.4%453
2026-09-23238K387K61.5%8
2026-09-22178K404K44.0%3,554
2026-09-21232K386K60.0%94
2026-09-18171K223K76.5%0
2026-09-17358K502K71.2%29
2026-09-16426K565K75.5%76
2026-09-15147K204K72.0%0
2026-09-14175K234K74.7%26
2026-09-11206K290K71.0%924
2026-09-10191K334K57.0%94
2026-09-09243K367K66.1%3,009
2026-09-08145K284K50.9%1,042
2026-09-044.8M4.9M98.3%0
2026-09-03290K443K65.5%3
2026-09-02223K324K68.9%490
2026-09-01207K386K53.7%629
2026-08-31190K365K52.2%322
2026-08-28125K266K47.0%0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 14 September 2026, the fails-to-deliver balance in CNI is 2,458 shares, down 9,068 shares over the last settlement date. Over the last 30 readings it ranged from 10 shares (2 July 2026) to 76,419 shares (6 July 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-142,458$122.25$300K
2026-09-1111,526$121.16$1.4M
2026-09-1015$121.84$2K
2026-09-0235,320$120.42$4.3M
2026-08-3119$126.01$2K
2026-08-27126$127.54$16K
2026-08-26600$127.12$76K
2026-08-241,008$129.84$131K
2026-08-20634$127.64$81K
2026-08-191,315$126.55$166K
2026-08-18175$126.59$22K
2026-08-17463$126.84$59K
2026-08-1411,447$127.70$1.5M
2026-08-1327,768$126.32$3.5M
2026-08-12455$126.28$57K
2026-08-1168$125.14$9K
2026-08-1015,190$126.60$1.9M
2026-08-0749$126.40$6K
2026-08-053,200$127.30$407K
2026-08-032,379$127.21$303K
2026-07-3058$129.84$8K
2026-07-2916,975$129.52$2.2M
2026-07-23155$127.91$20K
2026-07-204,200$129.03$542K
2026-07-17191$128.22$24K
2026-07-13462$124.40$57K
2026-07-101,400$124.34$174K
2026-07-083,113$122.78$382K
2026-07-0676,419$121.56$9.3M
2026-07-0210$119.82$1K

Planned sales (Form 144)

Newest first. JSON

1 Form 144 notice on file for CNI worth $643K at the prices reported; 0 in the last 90 days worth $0. Latest: DEREK M. TAYLOR filed on 2025-12-23 to sell 6,540 shares ($643K) from 2025-12-23.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2025-12-23DEREK M. TAYLOROFFICER7K$643K0.001%2025-12-23CITADEL SECURITIES

13F holders

Tracked managers holding CNI at their latest 13F. JSON

9 of the 30 tracked managers held CNI at their latest 13F, $6.66B in total at quarter-end prices. Gates Foundation Trust is the largest at $6.18B (18.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 5 cut.

FundQuarterSharesValueOf portfolioChange in shares
Gates Foundation Trust2026-06-3051.8M$6.18B17.95%0
AQR Capital Management2026-06-301.4M$167.7M0.06%+275K
Two Sigma Investments2026-06-301.4M$166.7M0.12%+975K
Point72 Asset Management2026-06-30502K$59.9M0.07%-278K
Millennium Management2026-06-30473K$56.4M0.02%-477K
Fisher Asset Management2026-06-30205K$24.5M0.01%-2.3M
Renaissance Technologies2026-06-3046K$5.5M0.01%-414K
Citadel Advisors2026-06-3020K$2.3M0.00%-1.5M
D. E. Shaw & Co.2026-06-308K$954K0.00%+6K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

What this page is

Canadian National Railway in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Canadian National Railway (CNI), SEC CIK 16868, listed on NYSE, classified by the SEC as railroads, line-haul operating. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-09.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-14.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2025-12-23.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Company record
EDGAR filing index for CIK 16868Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as railroads, line-haul operating

Other company pages

Datasets

Frequently Asked Questions

How much of CNI is sold short?
6,384,869 shares were held short at the 2026-09-30 settlement, 5.0 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is CNI's daily short volume?
On 2026-10-09, 197,420 of the 272,196 CNI shares reported to FINRA were sold short, 72.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does CNI have fails to deliver?
The SEC's latest file shows 2,458 CNI shares failed to deliver at settlement 2026-09-14. Fails are reported per settlement date and published twice a month with a lag.
Are CNI insiders buying or selling?
No Form 4 filings for CNI are on record.
Have CNI insiders filed to sell?
1 Form 144 notice on file for CNI worth $643K at the prices reported; 0 in the last 90 days worth $0. Latest: DEREK M. TAYLOR filed on 2025-12-23 to sell 6,540 shares ($643K) from 2025-12-23.
Which tracked 13F managers own CNI?
9 of the 30 tracked 13F managers held CNI shares at their latest filing, $6.66B in all. The largest: Bill Gates's Gates Foundation Trust (51.8M shares, $6.18B), Cliff Asness's AQR Capital Management (1.4M shares, $167.7M), Two Sigma Investments (1.4M shares, $166.7M), Steve Cohen's Point72 Asset Management (502K shares, $59.9M), Izzy Englander's Millennium Management (473K shares, $56.4M), Ken Fisher's Fisher Asset Management (205K shares, $24.5M). The table above lists all 9.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.