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Hydro One (HRNNF) Short Interest Ratio & Short Volume

Hydro One logo
$37.23 0.00 (0.00%)
As of 10/19/2026 03:50 PM Eastern
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Hydro One Short Interest Overview

As of September 30, 2026, Hydro One (HRNNF) had a short interest of 9.02 million shares sold short, representing 1.50% of the public float. This marks a -12.45% decrease in short interest since the prior report. The short interest ratio (days to cover) is 38.6, meaning it would take 38.6 days of the average trading volume of 156,360 shares to cover all short positions.

Current Short Interest
9,018,041 shares
Previous Short Interest
10,300,676 shares
Change Vs. Previous Month
-12.45%
Dollar Volume Sold Short
$322.63 million
Short Interest Ratio
38.6 Days to Cover
Last Record Date
September 30, 2026
Outstanding Shares
600,100,000 shares
Short Percent of Float
1.50%
Today's Trading Volume
34,498 shares
Average Trading Volume
156,360 shares
Today's Volume Vs. Average
22%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

HRNNF Short Interest Over Time

HRNNF Days to Cover Over Time

HRNNF Percentage of Float Shorted Over Time

Hydro One Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
9/30/20269,018,041 shares $322.63 million -12.5%1.5%38.59 $35.78
9/15/202610,300,676 shares $375.15 million +26.0%1.7%28.03 $36.42
8/31/20268,177,366 shares $312.87 million +32.2%1.4%53.86 $38.26
8/14/20266,183,971 shares $252.92 million +12.4%1.0%88.08 $40.90
7/31/20265,501,421 shares $229.79 million -4.0%0.9%149.89 $41.77
7/15/20265,728,613 shares $239.63 million -4.1%1.0%179.28 $41.83
6/30/20265,975,449 shares $246.79 million -4.2%1.0%56.28 $41.30
6/15/20266,236,863 shares $252.59 million +12.9%1.0%92.77 $40.50
5/29/20265,524,830 shares $227.46 million +12.6%0.9%41.02 $41.17
5/15/20264,904,849 shares $204.73 million +29.9%0.8%45.43 $41.74
4/30/20263,776,085 shares $162.30 million +11.6%0.6%26.62 $42.98
4/15/20263,384,056 shares $143.48 million -0.9%0.6%52.02 $42.40
3/31/20263,415,379 shares $140.68 million -39.3%0.6%48.18 $41.19
3/13/20265,622,000 shares $245.57 million +23.4%0.9%53.24 $43.68
2/27/20264,556,025 shares $195.23 million +14.1%0.8%23.11 $42.85
2/13/20263,992,397 shares $165.44 million +64.0%0.7%60.92 $41.44
1/30/20262,434,872 shares $96.01 million -6.2%0.4%36.93 $39.43
1/15/20262,594,304 shares $97.78 million +15.7%0.4%36.74 $37.69
12/31/20252,241,526 shares $88.87 million -23.6%0.4%39.5 $39.65
12/15/20252,934,850 shares $112.38 million +21.8%0.5%40.19 $38.29
11/28/20252,409,137 shares $94.44 million +24.9%0.4%28.63 $39.20
11/14/20252,766,699 shares $106.19 million +3.1%0.5%51.16 $38.38
10/31/20252,684,675 shares $98.64 million +6.0%N/A68.15 $36.74
10/15/20252,533,500 shares $93.54 million -29.6%N/A59.3 $36.92
9/30/20253,600,800 shares $127.18 million -22.0%N/A54.6 $35.32
9/15/20254,617,500 shares $163.64 million +3.2%N/A77.3 $35.44
8/31/20254,474,300 shares $162.28 million +11.1%N/A58 $36.27
8/15/20254,028,600 shares $148.09 million -19.2%N/A4028.6 $36.76
7/31/20254,987,700 shares $176.46 million -3.5%N/A978 $35.38
7/15/20255,169,000 shares $184.84 million -6.2%N/A1260.7 $35.76
6/30/20255,512,100 shares $195.96 million +3.3%N/A217.9 $35.55
6/15/20255,334,000 shares $192.60 million +12.0%N/A592.7 $36.11
5/31/20254,761,500 shares $174.41 million -0.8%N/A680.2 $36.63
5/15/20254,798,500 shares $166.89 million +4.7%N/A98.1 $34.78
4/30/20254,582,100 shares $171.60 million -4.3%N/A143.2 $37.45
4/15/20254,786,400 shares $165.99 million -6.2%N/A503.8 $34.68
3/31/20255,099,900 shares $171.92 million -13.0%N/A653.8 $33.71
3/15/20255,860,500 shares $193.81 million +29.8%N/A302.1 $33.07
2/28/20254,516,100 shares $143.66 million -6.0%N/A79.1 $31.81
2/15/20254,802,100 shares $151.94 million -1.6%N/A271.3 $31.64
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1/31/20254,880,800 shares $152.72 million -12.1%N/A460.5 $31.29
1/15/20255,549,500 shares $165.49 million +15.0%N/A1132.6 $29.82
12/31/20244,826,500 shares $147.54 million -3.6%N/A2098.5 $30.57
12/15/20245,006,600 shares $156.90 million +10.9%N/A162 $31.34
11/30/20244,515,600 shares $145.72 million -9.4%N/A49.4 $32.27
11/15/20244,982,600 shares $155.76 million -6.9%N/A5536.2 $31.26
10/31/20245,350,100 shares $173.72 million -7.8%N/A17833.7 $32.47
10/15/20245,803,800 shares $191.12 million -11.1%N/A5803.8 $32.93
9/30/20246,529,300 shares $226.04 million -30.1%N/A10882.2 $34.62
9/15/20249,346,500 shares $326.38 million +19.4%N/A2832.3 $34.92
8/31/20247,826,100 shares $264.05 million +2.0%N/A5590.1 $33.74
8/15/20247,673,400 shares $248.23 million +4.7%N/A6394.5 $32.35
7/31/20247,327,800 shares $230.31 million -0.8%N/A7327.8 $31.43
7/15/20247,389,300 shares $217.65 million -1.3%N/A5278.1 $29.46
6/30/20247,489,500 shares $218.24 million -4.3%N/A5349.6 $29.14
6/15/20247,822,600 shares $224.20 million +6.3%N/A547 $28.66
5/31/20247,357,800 shares $211.02 million -1.6%N/A1936.3 $28.68
5/15/20247,474,500 shares $223.19 million +4.7%N/A437.1 $29.86
4/30/20247,140,200 shares $200.07 million -1.1%N/A1983.4 $28.02
4/15/20247,218,300 shares $199.08 million +4.1%N/A255.1 $27.58
3/31/20246,936,400 shares $202.68 million -23.3%N/A88.4 $29.22
3/15/20249,044,200 shares $274.58 million +31.1%N/A132.2 $30.36
2/29/20246,898,800 shares $206.21 million +8.0%N/A157.9 $29.89
2/15/20246,388,400 shares $188.90 million +10.5%N/A144.9 $29.57
1/15/20245,240,800 shares $152.56 million -26.3%N/A111 $29.11
12/31/20237,114,000 shares $209.81 million -17.7%N/A191 $29.49
12/15/20238,644,500 shares $254.84 million +19.1%N/A136.6 $29.48
11/30/20237,256,700 shares $200.36 million +23.7%N/A258.2 $27.61
11/15/20235,866,300 shares $163.73 million -7.2%N/A103.3 $27.91
10/31/20236,321,800 shares $162.34 million -30.2%N/A63.7 $25.68
10/15/20239,060,900 shares $237.03 million +8.1%N/A90 $26.16
9/30/20238,384,900 shares $215.93 million +5.1%N/A131.8 $25.75
9/15/20237,980,400 shares $208.69 million +0.6%N/A156.2 $26.15
8/31/20237,933,900 shares $207.47 million +4.6%N/A652.4 $26.15
8/15/20237,582,800 shares $204.58 million +10.3%N/A8425.3 $26.98
7/31/20236,875,700 shares $195.06 million +18.4%N/A7639.7 $28.37
7/15/20235,805,600 shares $167.75 million +0.1%N/A29028 $28.89
6/30/20235,801,600 shares $163.20 million -10.8%N/A19338.7 $28.13
6/15/20236,505,500 shares $180.68 million +11.0%N/A32527.5 $27.77
5/31/20235,859,000 shares $165.72 million -1.6%N/A9765 $28.28
5/15/20235,953,300 shares $169.67 million +3.6%N/A19844.3 $28.50
4/30/20235,746,500 shares $168.81 million +5.7%N/A19155 $29.38
4/15/20235,436,500 shares $162.28 million -8.2%N/A310.7 $29.85
3/31/20235,919,700 shares $169.30 million +4.3%N/A445.1 $28.60
3/15/20235,673,700 shares $148.63 million +27.6%N/A7092.1 $26.20
2/28/20234,445,200 shares $117.92 million +6.1%N/A182.2 $26.53
2/15/20234,189,200 shares $112.91 million -38.5%N/A654.6 $26.95
1/31/20236,809,600 shares $185.77 million -2.0%N/A472.9 $27.28
1/15/20236,947,400 shares $193.14 million -4.6%N/A23158 $27.80
12/30/20227,278,600 shares $176.87 million -8.4%N/A1025.2 $24.30
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12/15/20227,947,000 shares $220.61 million +10.3%N/A13245 $27.76
11/30/20227,202,400 shares $200.08 million -9.8%N/A496.7 $27.78
11/15/20227,987,900 shares $205.99 million -1.7%N/A2576.7 $25.79
10/31/20228,123,600 shares $201.55 million +15.4%N/A576.1 $24.81
10/15/20227,042,400 shares $158.39 million +24.6%N/A7824.9 $22.49
9/30/20225,651,500 shares $138.24 million +11.1%N/A2018.4 $24.46
9/15/20225,088,500 shares $136.98 million -1.3%N/A1696.2 $26.92
8/31/20225,154,700 shares $140.21 million -5.3%N/A1610.8 $27.20
8/15/20225,444,100 shares $150.42 million -5.6%N/A4187.8 $27.63
7/31/20225,763,700 shares $161.67 million +5.4%N/A3202.1 $28.05
7/15/20225,469,800 shares $147.19 million +36.7%N/A1519.4 $26.91
6/30/20224,000,300 shares $107.53 million +66.8%N/A1290.4 $26.88
6/15/20222,397,800 shares $62.61 million -1.3%N/A436 $26.11
5/31/20222,429,100 shares $67.36 million -12.7%N/A1156.7 $27.73
5/15/20222,781,000 shares $74.48 million +67.9%N/A869.1 $26.78
4/30/20221,656,700 shares $44.73 million +32.3%N/A376.5 $27.00
4/15/20221,252,400 shares $34.59 million -11.7%N/A2504.8 $27.62
3/31/20221,419,000 shares $38.65 million -64.4%N/A308.5 $27.24
3/15/20223,988,800 shares $102.63 million -19.6%N/A356.1 $25.73
2/28/20224,961,100 shares $122.34 million -3.9%N/A318 $24.66
2/15/20225,164,200 shares $129.26 million +212.5%N/A727.4 $25.03
1/31/20221,652,800 shares $42.71 million +5.2%N/A403.1 $25.84
1/15/20221,570,900 shares $39.57 million +4.9%N/A785.5 $25.19
12/31/20211,497,600 shares $38.41 million -2.4%N/A788.2 $25.65
12/15/20211,534,000 shares $37.35 million +103.4%N/A189.4 $24.35
11/30/2021754,100 shares $18.41 million +53.7%N/A290 $24.41
11/15/2021490,800 shares $11.82 million -67.2%N/A129.2 $24.09
10/29/20211,495,700 shares $35.75 million +2.6%N/A515.8 $23.90

HRNNF Short Interest - Frequently Asked Questions

Short interest is the volume of Hydro One shares that have been sold short but have not yet been covered or closed out. As of September 30th, investors have sold 9,018,041 shares of HRNNF short. 1.50% of Hydro One's shares are currently sold short. Learn More on Hydro One's current short interest.

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. HRNNF shares currently have a short interest ratio of 38.6. Learn More on Hydro One's short interest ratio.

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 1.50% of Hydro One's floating shares are currently sold short.

Hydro One saw a decline in short interest during the month of September. As of September 30th, there was short interest totaling 9,018,041 shares, a decline of 12.5% from the previous total of 10,300,676 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

1.50% of Hydro One's shares are currently sold short. Here is how the short interest of companies in the industry of "electric utilities" compare to Hydro One: American Electric Power Company, Inc. (5.42%), ENGIE - Sponsored ADR (0.00%), Endesa S.A. - Unsponsored ADR (0.00%), Entergy Corporation (3.83%), RWE AG (0.01%), Xcel Energy Inc. (7.90%), Exelon Corporation (3.25%), Sse Plc (0.00%), Pacific Gas & Electric Co. (1.36%), Ameren Corporation (5.16%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($75.10 billion), Invesco QQQ ($52.12 billion), iShares Russell 2000 ETF ($25.28 billion), SPDR S&P Biotech ETF ($11.70 billion), Nebius Group N.V. ($10.54 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($9.69 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($9.22 billion), iShares 20+ Year Treasury Bond ETF ($8.80 billion), Financial Select Sector SPDR Fund ($7.65 billion), and Lumentum Holdings Inc. ($7.23 billion). View all of the most shorted stocks.

Short selling HRNNF is an investing strategy that aims to generate trading profit from Hydro One as its price is falling. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

A short squeeze for Hydro One occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of HRNNF, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including HRNNF, twice per month. The most recent reporting period available is September, 30 2026.

Understanding short interest metrics can help you assess how traders are positioning around a stock like HRNNF:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.


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Short Interest Tools

Short interest data for OTCMKTS:HRNNF is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 10/9/2026. FINRA publishes updated short interest twice a month.
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