Best Mid Cap Stocks To Watch Now – October 8th

Posted by Brenda Bartman on Oct 8th, 2026

ProShares UltraPro Short QQQ, Applied Optoelectronics, and Applied Digital are the three Mid Cap stocks to watch today, according to MarketBeat’s stock screener tool. Mid-cap stocks are shares of companies with a medium-sized market capitalization, typically larger than small-cap companies but smaller than large-cap companies. They may offer a balance between the growth potential of smaller companies and the relative stability of larger, established firms, though they can still carry substantial investment risk. These companies had the highest dollar trading volume of any Mid Cap stocks within the last several days.

ProShares UltraPro Short QQQ (SQQQ)

ProShares UltraPro Short QQQ (the Fund) seeks daily investment results, which corresponds to three times the inverse of the daily performance of the NASDAQ-100 Index (the Index). The Index includes 100 of the non-financial domestic and international issues listed on National Association of Securities Dealers Automated Quotation (NASDAQ) Stock Market.

Read Our Latest Research Report on SQQQ

Applied Optoelectronics (AAOI)

Applied Optoelectronics, Inc. designs, manufactures, and sells fiber-optic networking products in the United States, Taiwan, and China. It offers optical modules, optical filters, lasers, laser components, subassemblies, transmitters and transceivers, turn-key equipment, headend, node, distribution equipment, and amplifiers.

Read Our Latest Research Report on AAOI

Applied Digital (APLD)

Applied Digital Corporation designs, develops, and operates datacenters in North America. Its datacenters provide digital infrastructure solutions to the high-performance computing industry. The company also provides artificial intelligence cloud services, high performance computing datacenter hosting, and crypto datacenter hosting services.

Read Our Latest Research Report on APLD