The SEC is developing a plan to allow blockchain-based stock trading, which could significantly impact traditional financial markets. Coinbase supports this move, advocating for speedy regulatory relief, while Citadel Securities opposes it, suggesting potential disruption to their established market structure. If the plan moves forward, investors could buy tokens representing shares of companies like Tesla or Nvidia on crypto exchanges, potentially increasing liquidity and accessibility for tokenized stocks, which saw $465 million in volume and 136% growth in 30 days.