According to H.E. Justin Sun (@justinsuntron), the Cboe BZX Exchange has officially filed a 19b-4 proposal with the SEC seeking approval to list shares of the Canary Staked TRX ETF, as reported on May 15, 2025 (cdn.cboe.com). This move would enable institutional and traditional market investors to gain regulated exposure to TRX, a key digital asset in the Tron ecosystem. The filing signals a significant advancement in institutional crypto adoption, potentially increasing TRX's liquidity and market depth. Traders should monitor SEC response timelines and potential volume inflows, as ETF approval could catalyze further mainstream participation in the crypto market.