RBLX is trading at 3.7% down now at $97.94 after Cathie Wood’s ARK Invest made a significant purchase of 78,096 shares worth $7.9 million on November 18, 2025, as disclosed in daily ETF filings. Despite this high-profile buy, Roblox shares are underperforming the broader market, which is trading higher with the S&P 500 up 0.81% and NASDAQ up 1.44%. No major negative company-specific news or earnings releases have been reported today, suggesting the decline may reflect profit-taking or rotation out of the stock following recent gains, even as institutional investors like ARK increase their holdings. Trading activity appears elevated due to the notable ETF transaction.