RBRK fell 4.08% as U.S. equities sold off, with the S&P 500 down 1.21% and the Nasdaq down 2.12%, while several security and cloud peers also declined. The broad risk-off move was led by a sharp semiconductor selloff, including Intel down 29%, alongside higher volatility and weaker Asian markets. Morgan Stanley's October 29 initiation at Overweight was supportive but did not prevent the market-driven decline.
Morgan Stanley initiation