The Nasdaq stock exchange is planning to list binary options tied to its flagship stock indexes, allowing traders to bet on the direction of major equity benchmarks like the Nasdaq-100. The move follows the rapid growth of platforms like Polymarket and Kalshi that allow users to trade on the outcomes of events. The proposed contracts would be priced between 1 cent and $1, reflecting the market's view of the probability that a specific outcome will occur. This move follows a surge in interest in event-based trading.