Gilead Sciences, Inc. (NASDAQ:GILD) climbed on Wednesday, even as the S&P 500 ended the day with losses.
On CNBC's "Options Action," Tony Zhang said that Gilead Sciences traded nearly 2.5 times its average daily volume on Thursday.
Check out other stocks making big moves in the premarket.
There was a buyer of more than 11,000 of the September 62.5 calls at $2.43 per contract on average, Zhang mentioned. The trader “clearly sees very limited upside for Gilead,” he added. The seller expects shares of Gilead Sciences to remain below $62.50 by September expiration.
