Union Pacific (UNP) Short Interest Ratio & Short Volume

Short interest is the volume of Union Pacific shares that have been sold short but have not yet been covered or closed out. As of July 31st, investors have sold 9,090,000 shares of UNP short. 1.54% of Union Pacific's shares are currently sold short. Learn More on Union Pacific'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. UNP shares currently have a short interest ratio of 2.0. Learn More on Union Pacific's short interest ratio.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Union Pacific: LMR Partners LLP, Hudson Bay Capital Management LP, Group One Trading LLC, Cubist Systematic Strategies LLC, BNP Paribas Financial Markets, Balyasny Asset Management L.P., Bank of America Corp DE, Jane Street Group LLC, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Maven Securities LTD, Capula Management Ltd, Walleye Capital LLC, Walleye Trading LLC, Delta Accumulation LLC, Hsbc Holdings PLC, Capital Fund Management S.A., Eisler Capital Management Ltd., JPMorgan Chase & Co., Citigroup Inc., Creative Planning, SG Americas Securities LLC, Garda Capital Partners LP, Marathon Trading Investment Management LLC, Simplex Trading LLC, Bank of Montreal Can, Wolverine Asset Management LLC, Portman Square Capital LLP, Allianz Asset Management GmbH, IMC Chicago LLC, CenterStar Asset Management LLC, Quaker Wealth Management LLC, and Jane Street Group LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission.

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. 1.54% of Union Pacific's floating shares are currently sold short.

Union Pacific saw a increase in short interest during the month of July. As of July 31st, there was short interest totaling 9,090,000 shares, an increase of 54.6% from the previous total of 5,880,000 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.

Union Pacific currently has issued a total of 593,040,000 shares. Some of Union Pacific'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. Union Pacific currently has a public float of 592,030,000 shares.

1.54% of Union Pacific's shares are currently sold short. Here is how the short interest of companies in the sector of "transportation" compare to Union Pacific: American Airlines Group Inc. (9.52%), CSX Corporation (1.35%), J.B. Hunt Transport Services, Inc. (4.20%), Canadian National Railway Company (1.03%), Canadian Pacific Kansas City Limited (1.35%), Norfolk Southern Corporation (1.22%), United Parcel Service, Inc. (2.15%), Rail Vision Ltd. (1.18%), FedEx Corporation (1.71%), Delta Air Lines, Inc. (2.88%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.87 billion), Invesco QQQ ($30.12 billion), iShares Russell 2000 ETF ($19.85 billion), iShares 20+ Year Treasury Bond ETF ($10.34 billion), MicroStrategy Incorporated ($8.98 billion), iShares iBoxx $ Investment Grade Corporate Bond ETF ($7.61 billion), SPDR S&P Biotech ETF ($6.81 billion), Invesco S&P 500 Equal Weight ETF ($6.14 billion), Palo Alto Networks, Inc. ($5.97 billion), and Super Micro Computer, Inc. ($5.28 billion). View all of the most shorted stocks.

Short selling UNP is an investing strategy that aims to generate trading profit from Union Pacific as its price is falling. UNP shares are trading down $0.97 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 Union Pacific 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 UNP, 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 UNP, twice per month. The most recent reporting period available is July, 31 2025.