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Rockwell Medical (RMTI) Short Interest Ratio & Short Volume

Rockwell Medical logo
$0.74 -0.02 (-2.26%)
As of 03:23 PM Eastern
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Rockwell Medical Short Interest Overview

As of May 15, 2026, Rockwell Medical (RMTI) had a short interest of 491,297 shares sold short, representing 1.29% of the public float. This marks a 26.80% increase in short interest since the prior report. The short interest ratio (days to cover) is 1.7, meaning it would take 1.7 days of the average trading volume of 521,910 shares to cover all short positions.

Current Short Interest
491,297 shares
Previous Short Interest
387,448 shares
Change Vs. Previous Month
26.80%
Dollar Volume Sold Short
$389.16 thousand
Short Interest Ratio
1.7 Days to Cover
Last Record Date
May 15, 2026
Outstanding Shares
39,470,000 shares
Short Percent of Float
1.29%
Today's Trading Volume
196,658 shares
Average Trading Volume
521,910 shares
Today's Volume Vs. Average
38%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

RMTI Short Interest Over Time

RMTI Days to Cover Over Time

RMTI Percentage of Float Shorted Over Time

Rockwell Medical 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
5/15/2026491,297 shares $389.16 thousand +26.8%1.3%1.65 $0.79
4/30/2026387,448 shares $339.75 thousand -60.9%1.0%1.83 $0.88
4/15/2026990,637 shares $908.51 thousand +33.3%2.6%5.97 $0.92
3/31/2026743,232 shares $663.85 thousand -19.0%2.0%2.18 $0.89
3/13/2026917,373 shares $822.06 thousand +7.3%2.4%3.46 $0.90
2/27/2026854,903 shares $769.93 thousand +4.4%2.2%3.46 $0.90
2/13/2026818,620 shares $826.81 thousand +19.3%2.1%2.94 $1.01
1/30/2026686,242 shares $734.28 thousand +18.2%1.8%0.24 $1.07
1/15/2026580,562 shares $551.65 thousand -32.0%1.5%2.84 $0.95
12/31/2025853,816 shares $711.66 thousand +44.1%2.2%3.26 $0.83
12/15/2025592,459 shares $511.11 thousand -33.4%1.5%2.87 $0.86
11/28/2025888,853 shares $872.85 thousand -6.5%2.3%3.54 $0.98
11/14/2025950,566 shares $873.67 thousand -8.0%2.9%2.05 $0.92
10/31/20251,033,506 shares $1.15 million -4.4%3.1%2.63 $1.11
10/15/20251,080,000 shares $1.30 million -18.2%3.7%0.8 $1.20
9/30/20251,320,000 shares $1.58 million -14.8%4.6%0.9 $1.20
9/15/20251,550,000 shares $2.57 million +52.0%5.4%1.1 $1.66
8/31/20251,020,000 shares $1.74 million +482.5%3.5%0.9 $1.71
8/15/2025175,100 shares $178.60 thousand +72.2%0.6%0.4 $1.02
7/31/2025101,700 shares $94.56 thousand -33.2%0.4%0.4 $0.93
7/15/2025152,300 shares $166.01 thousand -11.2%0.5%0.5 $1.09
6/30/2025171,500 shares $145.43 thousand +1.5%0.6%0.6 $0.85
6/15/2025169,000 shares $158.86 thousand +3.9%0.6%0.7 $0.94
5/31/2025162,600 shares $158.73 thousand -15.0%0.6%0.6 $0.98
5/15/2025191,200 shares $187.32 thousand -1.5%0.7%0.8 $0.98
4/30/2025194,100 shares $209.63 thousand -45.9%0.7%0.8 $1.08
4/15/2025358,500 shares $372.84 thousand -27.4%1.2%1.4 $1.04
3/31/2025493,800 shares $557.99 thousand -5.1%1.7%1.8 $1.13
3/15/2025520,300 shares $884.51 thousand +13.1%1.8%1.7 $1.70
2/28/2025460,000 shares $768.20 thousand +4.8%1.6%1.4 $1.67
2/15/2025438,800 shares $811.78 thousand -13.0%1.6%1.1 $1.85
1/31/2025504,200 shares $1.03 million -12.2%1.8%0.8 $2.04
1/15/2025574,100 shares $1.20 million -7.0%2.1%0.8 $2.09
12/31/2024617,500 shares $1.26 million -28.5%2.2%0.9 $2.04
12/15/2024863,900 shares $1.76 million -12.4%3.1%1.2 $2.04
11/30/2024985,800 shares $2.26 million -12.0%3.5%1.2 $2.29
11/15/20241,120,000 shares $2.64 million +25.3%4.0%1.4 $2.36
10/31/2024893,900 shares $3.26 million +8.6%3.3%1.5 $3.65
10/15/2024823,400 shares $2.83 million +56.2%3.0%1.6 $3.44
9/30/2024527,000 shares $2.09 million +32.6%1.9%1.1 $3.97
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9/15/2024397,500 shares $1.54 million +23.6%1.5%1 $3.88
8/31/2024321,500 shares $919.49 thousand -25.2%1.2%0.9 $2.86
8/15/2024429,500 shares $1.10 million -11.5%1.6%1.8 $2.56
7/31/2024485,400 shares $888.28 thousand -18.7%1.6%2.8 $1.83
7/15/2024596,800 shares $1.28 million -19.4%2.0%3.6 $2.15
6/30/2024740,100 shares $1.30 million +5.7%2.5%4.5 $1.76
6/15/2024699,900 shares $1.29 million +3.9%2.4%3.7 $1.85
5/31/2024673,800 shares $1.18 million +6.5%2.3%3.2 $1.76
5/15/2024632,600 shares $1.08 million +2.5%2.1%3.1 $1.71
4/30/2024617,300 shares $901.26 thousand -3.3%2.1%3 $1.46
4/15/2024638,500 shares $973.71 thousand -5.5%2.4%3 $1.53
3/31/2024675,700 shares $1.12 million +18.7%2.5%2.9 $1.66
3/15/2024569,500 shares $797.30 thousand -9.4%2.2%2.3 $1.40
2/29/2024628,700 shares $886.47 thousand +1.7%2.5%2.7 $1.41
2/15/2024618,500 shares $859.72 thousand +14.7%2.5%2.7 $1.39
1/31/2024539,400 shares $712.01 thousand -10.2%2.2%2.2 $1.32
1/15/2024600,900 shares $925.39 thousand +2.1%2.4%2.4 $1.54
12/31/2023588,700 shares $1.11 million -23.2%2.4%2.2 $1.89
12/15/2023766,700 shares $1.34 million -5.6%3.1%3 $1.75
11/30/2023811,800 shares $1.45 million -8.2%3.3%3 $1.79
11/15/2023884,600 shares $1.95 million -11.2%3.6%3.2 $2.21
10/31/2023996,200 shares $1.77 million +8.4%4.0%2.8 $1.78
10/15/2023918,800 shares $1.81 million +12.9%3.7%1.9 $1.97
9/30/2023813,600 shares $1.69 million -8.5%3.3%1 $2.08
9/15/2023888,800 shares $1.84 million -20.6%3.6%0.8 $2.08
8/31/20231,120,000 shares $2.61 million -13.2%5.3%1 $2.33
8/15/20231,290,000 shares $3.56 million -15.7%6.1%1 $2.76
7/31/20231,530,000 shares $5.46 million +16.8%15.0%1.3 $3.57
7/15/20231,310,000 shares $4.18 million +81.6%12.8%1.3 $3.19
6/30/2023721,200 shares $3.94 million +156.8%7.1%1.1 $5.46
6/15/2023280,800 shares $1.20 million +621.9%2.7%0.8 $4.28
5/31/202338,900 shares $129.15 thousand -35.8%0.4%0.2 $3.32
5/15/202360,600 shares $146.05 thousand -8.2%0.6%0.4 $2.41
4/30/202366,000 shares $182.16 thousand -38.3%0.7%0.3 $2.76
4/15/2023106,900 shares $212.73 thousand -24.4%1.1%0.4 $1.99
3/31/2023141,400 shares $255.93 thousand -24.4%1.4%0.5 $1.81
3/15/2023187,000 shares $239.36 thousand +21.9%2.1%0.6 $1.28
2/28/2023153,400 shares $251.58 thousand -17.4%1.7%0.5 $1.64
2/15/2023185,600 shares $486.27 thousand +108.3%2.0%0.7 $2.62
1/31/202389,100 shares $132.76 thousand +15.6%0.8%0.4 $1.49
1/15/202377,100 shares $145.72 thousand +2.9%0.7%0.8 $1.89
12/30/202274,900 shares $76.02 thousand -0.7%0.7%1.1 $1.02
12/15/202275,400 shares $76.91 thousand -0.7%0.7%1.3 $1.02
11/30/202275,900 shares $82.73 thousand -40.6%0.7%1.3 $1.09
11/15/2022127,800 shares $168.70 thousand +29.6%1.2%1.9 $1.32
10/31/202298,600 shares $96.30 thousand +0.6%1.0%1.4 $0.98
10/15/202298,000 shares $110.74 thousand +11.0%1.0%1.2 $1.13
9/30/202288,300 shares $116.56 thousand -22.5%0.9%1 $1.32
9/15/2022114,000 shares $182.40 thousand +13.6%1.2%1.2 $1.60
8/31/2022100,400 shares $181.72 thousand -55.9%1.0%1.1 $1.81
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8/15/2022227,400 shares $479.81 thousand +44.5%2.3%2.4 $2.11
7/31/2022157,400 shares $223.51 thousand -19.9%1.8%1.8 $1.42
7/15/2022196,600 shares $239.85 thousand -4.9%2.3%2.6 $1.22
6/30/2022206,800 shares $266.77 thousand -25.2%2.6%3.1 $1.29
6/15/2022276,400 shares $364.85 thousand +14.0%3.5%4.1 $1.32
5/31/2022242,400 shares $397.54 thousand -40.6%3.1%3.9 $1.64
5/15/2022408,100 shares $824.36 thousand -79.2%5.7%8.1 $2.02
4/30/20221,960,000 shares $642.88 thousand -8.0%2.5%4.7 $0.33
4/15/20222,130,000 shares $807.91 thousand -1.4%2.7%4.2 $0.38
3/31/20222,160,000 shares $1.02 million +0.9%2.5%1.3 $0.47
3/15/20222,140,000 shares $710.48 thousand -3.6%2.5%1.3 $0.33
2/28/20222,220,000 shares $748.14 thousand -3.9%2.6%1.3 $0.34
2/15/20222,310,000 shares $808.73 thousand -1.3%2.7%1.3 $0.35
1/31/20222,340,000 shares $962.21 thousand +48.1%2.7%1 $0.41
1/15/20221,580,000 shares $739.44 thousand -12.7%2.4%0.7 $0.47
12/31/20211,810,000 shares $742.10 thousand -17.4%2.8%1.5 $0.41
12/15/20212,190,000 shares $886.95 thousand +2.3%3.4%1.9 $0.41
11/30/20212,140,000 shares $909.50 thousand -7.4%3.3%2 $0.43
11/15/20212,310,000 shares $1.18 million -2.5%3.6%2.2 $0.51
10/29/20212,370,000 shares $1.27 million -13.2%3.7%4.4 $0.54
10/15/20212,730,000 shares $1.64 million -22.4%4.2%5 $0.60
9/30/20213,520,000 shares $2.10 million -17.6%5.5%6.4 $0.60
9/15/20214,270,000 shares $2.64 million -10.7%6.6%5.2 $0.62
8/31/20214,780,000 shares $3.17 million +2.8%7.4%5.1 $0.66
8/13/20214,650,000 shares $3.03 million +3.8%7.2%4.7 $0.65
7/30/20214,480,000 shares $3.27 million -15.2%7.0%4.3 $0.73
7/15/20215,280,000 shares $4.07 million +5.0%8.2%4 $0.77
6/30/20215,030,000 shares $4.58 million -38.7%7.8%3.6 $0.91
6/15/20218,200,000 shares $7.52 million +6.9%12.7%6.3 $0.92

RMTI Short Interest - Frequently Asked Questions

Short interest is the volume of Rockwell Medical shares that have been sold short but have not yet been covered or closed out. As of May 15th, investors have sold 491,297 shares of RMTI short. 1.29% of Rockwell Medical's shares are currently sold short. Learn More on Rockwell Medical'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. RMTI shares currently have a short interest ratio of 1.7. Learn More on Rockwell Medical'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. 1.29% of Rockwell Medical's floating shares are currently sold short.

Rockwell Medical saw a increase in short interest in May. As of May 15th, there was short interest totaling 491,297 shares, an increase of 26.8% from the previous total of 387,448 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.

1.29% of Rockwell Medical's shares are currently sold short. Here is how the short interest of companies compare to Rockwell Medical: Accuray Incorporated (5.80%), Intuitive Surgical, Inc. (1.91%), Abbott Laboratories (1.34%), Stryker Corporation (1.57%), Medtronic PLC (1.14%), Boston Scientific Corporation (2.12%), Edwards Lifesciences Corporation (1.99%), IDEXX Laboratories, Inc. (2.58%), Becton, Dickinson and Company (3.07%), ResMed Inc. (9.38%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($80.71 billion), Invesco QQQ ($47.96 billion), iShares Russell 2000 ETF ($22.13 billion), Western Digital Corporation ($14.35 billion), Sandisk Corporation ($12.86 billion), Salesforce Inc. ($10.89 billion), Nebius Group N.V. ($9.92 billion), SPDR S&P Biotech ETF ($9.72 billion), Lumentum Holdings Inc. ($8.89 billion), and iShares 20+ Year Treasury Bond ETF ($8.18 billion). View all of the most shorted stocks.

Short selling RMTI is an investing strategy that aims to generate trading profit from Rockwell Medical as its price is falling. RMTI shares are trading down $0.01 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 Rockwell Medical 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 RMTI, 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 RMTI, twice per month. The most recent reporting period available is May, 15 2026.

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

  • 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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This page (NASDAQ:RMTI) was last updated on 5/29/2026 by MarketBeat.com Staff.
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