In a surprise move, the SEC is leaning toward a decision to allow the trading of tokens that do not have the backing or consent of the public companies whose shares they track, the people said. These “third party” tokens — effectively a novel way to speculate on the direction of the share price — would be tradeable on decentralized crypto platforms, though not all such instruments necessarily carry the same benefits as normal stocks, such as voting rights or dividends. Under the SEC’s proposal, platforms that fail to provide those benefits would lose the right to list the tokens.