Among other "meme" stocks, Koss Corp KOSS.O and AMC Entertainment AMC.N climbed 52% and 14%. By Medha Singh and Shashank Nayar March 10 (Reuters) - U.S. stocks jumped on Wednesday with the Dow hitting a record high, as data showed underlying consumer prices remained tepid in February, easing concerns about a spike in inflation. The 10-year U.S. Treasury yield US10YT=TWEB slipped from its session highs as data showed core consumer prices index, which excludes volatile items such as food and energy, rose less than expected last month.