 UBS Group AG lessened its holdings in Zynex Inc. OTCMKTS:ZYXI by 47.0 during the 1st quarter, according to its most recent disclosure with the Securities and Exchange Commission SEC. The fund owned 10,965 shares of the companys stock after selling 9,736 shares during the quarter. UBS Group AGs holdings in Zynex were worth 121,000 at ... 