Zai Lab (ZLAB) Short Interest Ratio & Short Volume

Short interest is the volume of Zai Lab shares that have been sold short but have not yet been closed out or covered. As of June 30th, traders have sold 49,400 shares of ZLAB short. 1.31% of Zai Lab's shares are currently sold short. Learn More on Zai Lab's current short interest.

As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Zai Lab: Jane Street Group LLC, and Jefferies Financial Group Inc.. 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. 1.31% of Zai Lab's floating shares are currently sold short.

Zai Lab saw a drop in short interest during the month of June. As of June 30th, there was short interest totaling 49,400 shares, a drop of 98.9% from the previous total of 4,390,000 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.

Zai Lab currently has issued a total of 111,080,000 shares. Some of Zai Lab'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. Zai Lab currently has a public float of 3,760,000 shares.

1.31% of Zai Lab's shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Zai Lab: Intra-Cellular Therapies, Inc. (2.58%), Genmab A/S Sponsored ADR (0.28%), Moderna, Inc. (19.15%), Dr. Reddy's Laboratories Ltd (1.34%), Viatris Inc. (3.51%), Qiagen N.V. (2.51%), Ascendis Pharma A/S (6.16%), BridgeBio Pharma, Inc. (14.05%), Verona Pharma PLC American Depositary Share (0.60%), Blueprint Medicines Corporation (5.95%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($72.10 billion), Invesco QQQ ($26.89 billion), iShares Russell 2000 ETF ($19.61 billion), MicroStrategy Incorporated ($9.52 billion), iShares 20+ Year Treasury Bond ETF ($8.70 billion), WD-40 Company ($7.66 billion), Technology Select Sector SPDR Fund ($6.10 billion), Invesco S&P 500 Equal Weight ETF ($5.80 billion), Invesco S&P 500 Top 50 ETF ($5.53 billion), and Vanguard Large-Cap ETF ($5.35 billion). View all of the most shorted stocks.

Short selling ZLAB is an investing strategy that aims to generate trading profit from Zai Lab as its price is falling. ZLAB shares are trading down $2.44 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 Zai Lab 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 ZLAB, 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 ZLAB, twice per month. The most recent reporting period available is June, 30 2025.