The Motley Fool·19h ago·Daniel SparksCathie Wood Bets $46M on Cerebras IPO—But Valuation Warns of RiskARK Invest deploys $46.4M in Cerebras ($CBRS) following 68% IPO pop, but 120x sales valuation raises caution flags for retail investors. NVDAAMZNARKKCBRSIPOcustomer concentration