RTTNews | Oct 13, 2021 10:06AM EDT

10:06 Wednesday, October 13, 2021 (RTTNews.com) - Shares of Koss Corporation (KOSS) gained over 6% on Wednesday morning. The Wisconsin-based headphone maker's stock had surged almost 25% after 3:30 p.m. ET on Tuesday, before being halted for volatility.

According to Bloomberg, Koss rose after the Patent Trial and Appeal Board declined to institute reviews of two of its patents challenged by Apple Inc. (AAPL).

KOSS is currently trading at $20.44, up $1.26 or 6.60%, on the Nasdaq, on a volume of 5.8 million shares, far above average volume of 347 thousand. The stock has traded between $2.02 and $127.45 in the 52-week period.

Read the original article on RTTNews ( https://www.rttnews.com/3232427/koss-shares-gain-6.aspx)

For comments and feedback: contact editorial@rttnews.com

Copyright(c) 2021 RTTNews.com All Rights Reserved