Backpack Securities is officially live, this video is pretty high-end: Real U.S. stocks, supports broker-to-broker transfers, includes dividends and voting rights, and offers 24/5 trading; Includes U.S. stocks as well as ETFs from emerging markets like Europe and South Korea; Accessible with a single account, can be used for lending, collateral, etc., maximizing capital efficiency. Zero fees for the first month, go check it out.