Riot Blockchain and ServiceSource among Tech gainers; Virtusa and CSP among losers

Gainers: Riot Blockchain (RIOT) +20%. ServiceSource (SREV) +16%. ACM Research (ACMR) +14%. Vuzix (VUZI) +12%. Atomera (ATOM) +11%.Losers: Virtusa (VRTU) -25%. CSP (CSPI) -19%. Cambium Networks (CMBM) -14%. Genasys (GNSS) -11%. PowerFleet (PWFL) -10%.