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S&P 500   4,002.87
DOW   32,560.60
QQQ   310.34
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S&P 500   4,002.87
DOW   32,560.60
QQQ   310.34
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NASDAQ:BIIB

Biogen - BIIB Short Interest Ratio & Short Volume

$266.15
-1.76 (-0.66%)
(As of 03/21/2023 12:00 AM ET)
Add
Compare
Today's Range
$264.14
$268.99
50-Day Range
$256.56
$292.34
52-Week Range
$187.16
$311.88
Volume
621,036 shs
Average Volume
1.03 million shs
Market Capitalization
$38.46 billion
P/E Ratio
12.72
Dividend Yield
N/A
Price Target
$315.38

Biogen Short Interest Data

Current Short Volume
1,850,000 shares
Previous Short Volume
1,710,000 shares
Change Vs. Previous Month
+8.19%
Dollar Volume Sold Short
$499.24 million
Short Interest Ratio / Days to Cover
1.8
Last Record Date
February 28, 2023
Outstanding Shares
144,490,000 shares
Float Size
143,830,000 shares
Short Percent of Float
1.29%
Today's Trading Volume
621,036 shares
Average Trading Volume
1,028,614 shares
Today's Volume Vs. Average
-39.62%
cover of A Guide to High-Short-Interest Stocks and How to Trade Them ebook
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BIIB Short Interest Over Time

BIIB Days to Cover Over Time

BIIB Percentage of Float Shorted Over Time

Biogen (NASDAQ:BIIB) Short Interest History

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
2/28/20231,850,000 shares $499.24 million +8.2%1.3%1.8 $269.86
2/15/20231,710,000 shares $477.06 million -8.6%1.2%1.5 $278.98
1/31/20231,870,000 shares $543.98 million -1.1%1.3%1.6 $290.90
1/15/20231,890,000 shares $544.40 million +10.5%1.3%1.5 $288.04
12/30/20221,710,000 shares $473.53 million -18.6%1.2%1.2 $276.92
12/15/20222,100,000 shares $595.22 million -15.7%1.5%1.2 $283.44
11/30/20222,490,000 shares $759.87 million +2.5%1.7%1.4 $305.17
11/15/20222,430,000 shares $728.47 million -1.6%N/A1.5 $299.78
10/31/20222,470,000 shares $700.10 million -1.2%1.7%1.6 $283.44
10/15/20222,500,000 shares $661.58 million -7.8%1.7%1.7 $264.63
9/30/20222,710,000 shares $723.57 million +30.9%1.9%2.1 $267.00
9/15/20222,070,000 shares $427.91 million +9.5%1.4%2.2 $206.72
8/31/20221,890,000 shares $369.27 million -5.5%1.3%2 $195.38
8/15/20222,000,000 shares $444.76 million +3.1%1.4%2.1 $222.38
7/31/20221,940,000 shares $417.22 million -7.2%1.3%1.8 $215.06
7/15/20222,090,000 shares $453.55 million -17.1%1.4%1.9 $217.01
6/30/20222,520,000 shares $513.93 million -5.3%1.7%2.3 $203.94
6/15/20222,660,000 shares $524.71 million +10.4%1.8%2.4 $197.26
5/31/20222,410,000 shares $482 million +9.6%1.7%2.2 $200.00
5/15/20222,200,000 shares $438.04 million +7.8%1.5%2 $199.11
4/30/20222,040,000 shares $423.18 million +5.7%1.4%1.9 $207.44
4/15/20221,930,000 shares $410.22 million No Change1.3%1.7 $212.55
3/31/20221,930,000 shares $406.46 million -12.3%1.3%1.4 $210.60
3/15/20222,200,000 shares $434.19 million -11.3%1.5%1.4 $197.36
2/28/20222,480,000 shares $523.30 million -2.4%1.7%1.6 $211.01
2/15/20222,540,000 shares $552.12 million -13.9%1.7%1.6 $217.37
1/31/20222,950,000 shares $666.70 million +2.1%2.0%1.8 $226.00
1/15/20222,890,000 shares $691.58 million +17.5%2.0%1.9 $239.30
12/31/20212,460,000 shares $590.20 million +5.6%1.7%1.8 $239.92
12/15/20212,330,000 shares $549.60 million -2.5%1.6%2 $235.88
11/30/20212,390,000 shares $563.42 million +16.6%1.6%2.1 $235.74
11/15/20212,050,000 shares $557.23 million -13.9%1.4%2 $271.82
10/29/20212,380,000 shares $634.70 million -0.8%1.6%2.3 $266.68
10/15/20212,400,000 shares $674.86 million -3.6%1.6%2.4 $281.19
9/30/20212,490,000 shares $704.65 million +2.1%1.7%2.4 $282.99
9/15/20212,440,000 shares $730.07 million +2.5%1.6%2.1 $299.21
8/31/20212,380,000 shares $806.61 million +9.2%1.6%1.7 $338.91
8/13/20212,180,000 shares $746.11 million +21.8%1.5%1.1 $342.25
7/30/20211,790,000 shares $584.85 million -4.3%1.2%0.9 $326.73
7/15/20211,870,000 shares $613.66 million -2.6%1.2%1 $328.16













BIIB Short Interest - Frequently Asked Questions

What is Biogen's current short interest?

Short interest is the volume of Biogen shares that have been sold short but have not yet been covered or closed out. As of February 28th, investors have sold 1,850,000 shares of BIIB short. 1.29% of Biogen's shares are currently sold short. Learn More on Biogen's current short interest.

What is a good short interest ratio for Biogen?

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. BIIB shares currently have a short interest ratio of 2.0. Learn More on Biogen's short interest ratio.

Which institutional investors are shorting Biogen?

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Biogen: Parallax Volatility Advisers L.P., Natixis, Point72 Middle East FZE, Jane Street Group LLC, Belvedere Trading LLC, Squarepoint Ops LLC, Millennium Management LLC, Maven Securities LTD, Centiva Capital LP, Jefferies Financial Group Inc., SG3 Management LLC, Point72 Hong Kong Ltd, Susquehanna International Group LLP, Clear Street LLC, Natixis, Twin Tree Management LP, Barclays PLC, Capital Fund Management S.A., JPMorgan Chase & Co., Bank of America Corp DE, Capstone Investment Advisors LLC, BTG Pactual Global Asset Management Ltd, Group One Trading L.P., IMC Chicago LLC, Cowen AND Company LLC, Citigroup Inc., Banco BTG Pactual S.A., UBS Group AG, Cutler Group LLC CA, Simplex Trading LLC, Bank of Montreal Can, Concourse Financial Group Securities Inc., and XR Securities LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

What is a good short interest percentage for Biogen?

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 Biogen's floating shares are currently sold short.

Is Biogen's short interest increasing or decreasing?

Biogen saw a increase in short interest in February. As of February 28th, there was short interest totaling 1,850,000 shares, an increase of 8.2% from the previous total of 1,710,000 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.

What is Biogen's float size?

Biogen currently has issued a total of 144,490,000 shares. Some of Biogen's outstanding shares are available for trading, while others are subject to various restrictions. The public float, also referred to as floating shares or "the float", are shares that publicly owned, unrestricted and available to trade on the open market. Biogen currently has a public float of 143,830,000 shares.

How does Biogen's short interest compare to its competitors?

1.29% of Biogen's shares are currently sold short. Here is how the short interest of companies in the sector of "medical" compare to Biogen: Seagen Inc. (1.76%), Repligen Co. (8.01%), Gilead Sciences, Inc. (1.26%), Amgen Inc. (1.38%), BioNTech SE (0.81%), argenx SE (1.64%), Moderna, Inc. (4.67%), Bio-Techne Co. (1.63%), Qiagen (2.29%), and Illumina, Inc. (2.75%).

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: Suncor Energy Inc. ($3.27 billion), Occidental Petroleum Co. ($2.77 billion), Coinbase Global, Inc. ($2.25 billion), T. Rowe Price Group, Inc. ($2.23 billion), Paramount Global ($1.92 billion), Etsy, Inc. ($1.75 billion), Voya Financial, Inc. ($1.74 billion), CarMax, Inc. ($1.62 billion), Old Dominion Freight Line, Inc. ($1.62 billion), and Royal Caribbean Cruises Ltd. ($1.39 billion). View all of the most shorted stocks.

What does it mean to sell short Biogen stock?

Short selling BIIB is an investing strategy that aims to generate trading profit from Biogen as its price is falling. BIIB shares are trading down $1.76 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.

How does a short squeeze work against Biogen?

A short squeeze for Biogen 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 BIIB, which in turn drives the price of the stock up even further.

How often is Biogen's short interest reported?

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including BIIB, twice per month. The most recent reporting period available is February, 28 2023.



This page (NASDAQ:BIIB) was last updated on 3/22/2023 by MarketBeat.com Staff