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Tourmaline Oil (TRMLF) Short Interest Ratio & Short Volume

Tourmaline Oil logo
$45.44 +0.30 (+0.66%)
As of 11/11/2026 03:59 PM Eastern
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Tourmaline Oil Short Interest Overview

As of October 30, 2026, Tourmaline Oil (TRMLF) had a short interest of 15.60 million shares sold short, representing 4.03% of the public float. This marks an 11.42% decrease in short interest since the prior report. The short interest ratio (days to cover) is 54.3, meaning it would take 54.3 days of the average trading volume of 236,049 shares to cover all short positions.

Current Short Interest
15,600,418 shares
Previous Short Interest
17,610,784 shares
Change Vs. Previous Report
-11.42%
Dollar Volume Sold Short
$767.38 million
Short Interest Ratio
54.3 Days to Cover
Last Record Date
October 30, 2026
Outstanding Shares
387,570,000 shares
Short Percent of Float
4.03%
Today's Trading Volume
55,573 shares
Average Trading Volume
236,049 shares
Today's Volume Vs. Average
24%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

TRMLF Short Interest Over Time

TRMLF Days to Cover Over Time

TRMLF Percentage of Float Shorted Over Time

Tourmaline Oil 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
10/30/202615,600,418 shares $767.38 million -11.4%4.0%54.32 $49.19
10/15/202617,610,784 shares $801.82 million +1.3%4.5%64.57 $45.53
9/30/202617,383,673 shares $743.67 million -14.0%4.5%57.26 $42.78
9/15/202620,222,470 shares $926.80 million +7.2%5.2%95.87 $45.83
8/31/202618,597,886 shares $847.51 million +18.5%4.8%154.51 $45.57
8/14/202615,695,074 shares $672.38 million -5.2%4.0%71.6 $42.84
7/31/202616,547,255 shares $730.89 million +10.7%4.3%90.34 $44.17
7/15/202614,955,022 shares $655.18 million +9.1%3.8%47.45 $43.81
6/30/202613,702,526 shares $572.88 million -26.3%3.5%55.87 $41.81
6/15/202618,591,864 shares $815.81 million +4.2%4.8%78.07 $43.88
5/29/202617,835,881 shares $814.74 million +7.2%4.6%59.21 $45.68
5/15/202616,637,442 shares $815.07 million +26.5%4.3%60.67 $48.99
4/30/202613,156,458 shares $637.04 million +46.2%3.4%41.44 $48.42
4/15/20269,001,180 shares $398.37 million -21.1%2.3%24.87 $44.26
3/31/202611,409,636 shares $545.38 million -28.2%2.9%45.27 $47.80
3/13/202615,884,658 shares $776.23 million +25.9%4.1%35.44 $48.87
2/27/202612,619,272 shares $592.22 million +0.6%3.2%93.29 $46.93
2/13/202612,548,033 shares $569.30 million +5.2%3.2%33.36 $45.37
1/30/202611,925,412 shares $564.67 million -4.2%3.1%50.35 $47.35
1/15/202612,451,785 shares $529.61 million +3.7%3.2%35.04 $42.53
12/31/202512,007,761 shares $540.11 million -47.0%3.1%56.28 $44.98
12/15/202522,643,296 shares $1.03 billion +84.5%5.8%100.28 $45.50
11/28/202512,273,388 shares $563.35 million +6.0%3.2%28.17 $45.90
11/14/202512,194,166 shares $535.20 million +22.0%3.2%49.72 $43.89
10/31/20259,994,544 shares $439.26 million +3.0%2.6%48.12 $43.95
10/15/20259,699,900 shares $417.48 million -10.7%2.5%71.4 $43.04
9/30/202510,858,600 shares $468.66 million -20.8%N/A41.5 $43.16
9/15/202513,716,100 shares $589.66 million +13.7%N/A69.9 $42.99
8/31/202512,064,700 shares $512.63 million -0.4%3.1%70.6 $42.49
8/15/202512,114,600 shares $504.33 million +42.1%N/A78 $41.63
7/31/20258,528,200 shares $363.13 million -11.7%2.2%67.3 $42.58
7/15/20259,660,000 shares $438.76 million -3.4%N/A53.3 $45.42
6/30/20259,995,000 shares $481.88 million -15.1%2.6%121.7 $48.21
6/15/202511,774,600 shares $574.95 million -3.9%3.0%148.9 $48.83
5/31/202512,248,900 shares $555.30 million -0.3%3.2%409.7 $45.34
5/15/202512,285,600 shares $554.41 million +30.9%3.3%132.4 $45.13
4/30/20259,384,400 shares $414.70 million -2.0%N/A219.8 $44.19
4/15/20259,575,800 shares $418.84 million -37.7%2.6%79.4 $43.74
3/31/202515,358,700 shares $740.90 million -48.1%4.1%364.8 $48.24
3/15/202529,587,500 shares $1.32 billion +126.0%7.9%245.9 $44.69
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2/28/202513,091,200 shares $603.50 million +36.4%3.5%98.4 $46.10
2/15/20259,596,100 shares $458.31 million -2.4%2.6%85.8 $47.76
1/31/20259,830,500 shares $448.17 million -0.6%N/A92 $45.59
1/15/20259,889,100 shares $466.37 million -1.9%N/A68.4 $47.16
12/31/202410,079,700 shares $466.09 million -4.4%N/A76.8 $46.24
12/15/202410,548,100 shares $468.60 million -2.3%N/A170.4 $44.43
11/30/202410,800,300 shares $508.80 million -18.2%N/A74.7 $47.11
11/15/202413,202,000 shares $586.04 million +6.3%N/A146.7 $44.39
10/31/202412,422,100 shares $572.66 million +52.0%N/A153.7 $46.10
10/15/20248,172,100 shares $375.18 million -24.1%N/A38.1 $45.91
9/30/202410,762,400 shares $500.34 million -65.7%N/A69.1 $46.49
9/15/202431,411,900 shares $1.37 billion +46.9%N/A543.5 $43.48
8/31/202421,384,300 shares $972.17 million -7.7%N/A219.8 $45.46
8/15/202423,173,300 shares $1.07 billion +107.1%N/A470 $45.98
7/31/202411,192,100 shares $492.34 million +92.9%N/A476.3 $43.99
7/15/20245,803,500 shares $261.37 million +2.7%N/A257.9 $45.04
6/30/20245,652,100 shares $256.21 million -63.9%N/A123.4 $45.33
6/15/202415,673,600 shares $720.05 million +54.1%N/A413.6 $45.94
5/31/202410,174,600 shares $502.83 million -32.7%N/A215.6 $49.42
5/15/202415,124,100 shares $729.48 million +62.2%N/A302.5 $48.23
4/30/20249,322,200 shares $461.45 million +66.9%N/A493.2 $49.50
4/15/20245,585,100 shares $261.83 million -11.0%N/A153.4 $46.88
3/31/20246,274,500 shares $293.65 million -5.1%N/A243.2 $46.80
3/15/20246,611,000 shares $300.40 million +0.5%N/A74 $45.44
2/29/20246,576,900 shares $297.34 million -44.9%N/A161.6 $45.21
2/15/202411,945,700 shares $501.12 million -43.4%N/A238.9 $41.95
1/15/202414,209,300 shares $660.98 million +98.9%N/A94.2 $46.52
12/31/20237,142,800 shares $321.85 million -37.5%N/A45.2 $45.06
12/15/202311,420,700 shares $500.00 million +13.9%N/A83.4 $43.78
11/30/202310,026,400 shares $486.88 million -25.8%N/A101.8 $48.56
11/15/202313,517,300 shares $669.82 million -10.1%N/A87.3 $49.55
10/31/202315,027,500 shares $792.81 million +31.7%N/A137.5 $52.76
10/15/202311,414,000 shares $579.83 million +4.1%N/A128.1 $50.80
9/30/202310,964,600 shares $553.82 million -31.9%N/A101.4 $50.51
9/15/202316,106,400 shares $833.51 million -28.6%N/A258.5 $51.75
8/31/202322,559,800 shares $1.16 billion -43.6%N/A266 $51.40
8/15/202340,009,200 shares $2.02 billion +57.5%N/A808.3 $50.55
7/31/202325,396,000 shares $1.31 billion +121.7%N/A829.9 $51.74
7/15/202311,456,000 shares $559.74 million +43.4%N/A208.3 $48.86
6/30/20237,989,600 shares $376.79 million -26.3%N/A201.8 $47.16
6/15/202310,842,500 shares $502.44 million -32.6%N/A330.6 $46.34
5/31/202316,086,100 shares $673.53 million -47.3%N/A412.5 $41.87
5/15/202330,542,700 shares $1.32 billion +90.3%N/A543.5 $43.12
4/30/202316,049,100 shares $720.85 million +133.8%N/A302.8 $44.92
4/15/20236,871,800 shares $310.88 million -1.5%N/A81.7 $45.24
3/31/20236,974,800 shares $290.36 million +9.4%N/A48.1 $41.63
3/15/20236,377,400 shares $246.74 million +23.6%N/A59.9 $38.69
2/28/20235,160,700 shares $225.73 million -32.6%N/A46.5 $43.74
2/15/20237,659,700 shares $353.04 million -7.9%N/A111 $46.09
1/31/20238,316,000 shares $387.69 million +60.6%N/A58.5 $46.62
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1/15/20235,179,600 shares $255.51 million -8.2%N/A72.8 $49.33
12/30/20225,639,800 shares $284.81 million -51.1%N/A119.2 $50.50
12/15/202211,528,200 shares $624.94 million -1.1%N/A171.6 $54.21
11/30/202211,654,700 shares $707.11 million -44.4%N/A298.1 $60.67
11/15/202220,952,700 shares $1.27 billion +51.6%N/A182 $60.45
10/31/202213,824,500 shares $782.47 million +79.3%N/A275.4 $56.60
10/15/20227,709,700 shares $424.50 million +23.5%N/A143.8 $55.06
9/30/20226,244,800 shares $324.11 million +97.1%N/A81.1 $51.90
9/15/20223,169,100 shares $196.45 million -5.1%N/A30.4 $61.99
8/31/20223,338,800 shares $196.92 million -67.2%N/A34.9 $58.98
8/15/202210,169,900 shares $598.60 million -5.1%N/A88.5 $58.86
7/31/202210,716,200 shares $671.03 million +48.7%N/A186 $62.62
7/15/20227,204,800 shares $354.55 million +34.3%N/A119.1 $49.21
6/30/20225,363,900 shares $278.65 million +16.4%N/A55.5 $51.95
6/15/20224,608,600 shares $259.14 million -26.2%N/A47.2 $56.23
5/31/20226,247,800 shares $385.52 million -4.9%N/A43.7 $61.71
5/15/20226,566,000 shares $349.38 million +51.3%N/A50.7 $53.21
4/30/20224,340,700 shares $222.33 million +41.8%N/A29.4 $51.22
4/15/20223,060,700 shares $155.06 million -18.1%N/A16.5 $50.66
3/31/20223,736,200 shares $172.69 million +11.4%N/A26.6 $46.22
3/15/20223,354,200 shares $128.29 million -7.3%N/A25.7 $38.25
2/28/20223,619,900 shares $142.19 million -16.9%N/A81.9 $39.28
2/15/20224,355,000 shares $160.87 million -14.0%N/A89.1 $36.94
1/31/20225,064,300 shares $180.49 million +65.0%N/A55.3 $35.64
1/15/20223,069,800 shares $110.88 million -19.9%N/A31.8 $36.12
12/31/20213,833,500 shares $123.82 million -3.9%N/A119.8 $32.30
12/15/20213,990,100 shares $122.58 million +47.0%N/A71.3 $30.72
11/30/20212,714,900 shares $90.92 million +16.1%N/A26.2 $33.49
11/15/20212,339,100 shares $85.45 million +31.0%N/A47.1 $36.53

TRMLF Short Interest - Frequently Asked Questions

Short interest is the volume of Tourmaline Oil shares that have been sold short but have not yet been closed out or covered. As of October 30th, investors have sold 15,600,418 shares of TRMLF short. 4.03% of Tourmaline Oil's shares are currently sold short. Learn More on Tourmaline Oil'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. TRMLF shares currently have a short interest ratio of 54.3. Learn More on Tourmaline Oil'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. 4.03% of Tourmaline Oil's floating shares are currently sold short.

Tourmaline Oil saw a drop in short interest since the prior report. As of October 30th, there was short interest totaling 15,600,418 shares, a drop of 11.4% from the previous total of 17,610,784 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.

4.03% of Tourmaline Oil's shares are currently sold short. Here is how the short interest of companies in the industry of "oil & gas exploration & production" compare to Tourmaline Oil: Occidental Petroleum Corporation (2.71%), Diamondback Energy, Inc. (2.57%), Devon Energy Corporation (2.55%), Woodside Energy Group Ltd (0.17%), EQT Corporation (3.92%), Expand Energy Corporation (5.07%), Texas Pacific Land Corporation (6.18%), Permian Resources Corporation (3.73%), Ovintiv Inc. (4.18%), APA Corporation (6.96%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($77.66 billion), Invesco QQQ ($57.17 billion), iShares Russell 2000 ETF ($21.91 billion), SPDR S&P Biotech ETF ($10.53 billion), Union Pacific Corporation ($9.26 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($9.05 billion), Nebius Group N.V. ($7.85 billion), iShares 20+ Year Treasury Bond ETF ($7.81 billion), Moderna, Inc. ($7.36 billion), and iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.20 billion). View all of the most shorted stocks.

Short selling TRMLF is an investing strategy that aims to generate trading profit from Tourmaline Oil as its price is falling. TRMLF shares are trading up $0.30 today. 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 Tourmaline Oil occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of TRMLF, 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 TRMLF, twice per month. The most recent reporting period available is October, 30 2026.

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

  • 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:TRMLF is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 11/10/2026. FINRA publishes updated short interest twice a month.
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