From Nasdaq Corporation. May 21, 2025 3:23:00 pm:

Today, MicroStrategy Inc. (MSTR) saw a high options trading volume of 507,971 contracts, representing 50.8 million shares, with a focus on the $420 strike call option expiring on May 23, 2025. Zoom Communications Inc (ZM) also experienced high volume with 37,004 contracts and a focus on the $87 strike call option. Medical Properties Trust Inc (MPW) saw 132,821 contracts traded, with emphasis on the $4.50 strike put option expiring on August 15, 2025. For more information on options for these companies, visit StockOptionsChannel.com.

Read more at NASDAQ: Noteworthy Wednesday Option Activity: MSTR, ZM, MPW