Three crypto accounts report today, Oct 21, that Ripple launched 24/7 institutional stock trading via Ripple Prime with RLUSD accepted as collateral, led by CoinDesk at 08:56 UTC, then cryptorover at 09:18 UTC and cryptodotnews at 10:14 UTC. The wording is near identical across reposts: round the clock access for institutional clients through its prime brokerage, RLUSD as collateral. One variant adds detail that it is swaps tied to 100 plus stock, ETF, commodity and FX markets, tradable on weekends with RLUSD usable as collateral. Ripple's own feed shows no such launch post today. Its closest prior posts are Oct 15 about RWA swaps against over 100 reference markets, cross margined 24/7 and Oct 14 about a DriveWealth partnership across RLUSD settlement, payments, custody and prime brokerage. Separately, the Solana address in the question is not official RLUSD. GeckoTerminal lists EzCsmiyeJMhY6nu7bCYxTy3XdPnQmZucwb6cEKRpump as "Ripple USD" (RLUSD) priced near $0.00000189 with about $281k in 24h volume, supply near 999.7M, migrated from pump, so treat any claimed returns on it as a memecoin, not the regulated stablecoin. No Telegram or news wire confirmation of the stock trading launch was found, only a same day Binance RLUSD holdings sharing 600,000 XRP notice.