Polymarket traders are pricing a 52% probability that the S&P 500 opens higher on Thursday, October 8, 2026. The narrow odds come as Wall Street weighs 5.35% Treasury yields, potential Iran strikes, and Pepsi earnings. The market reflects elevated uncertainty around macro and geopolitical catalysts heading into the open.

Shows prediction markets pricing near-coinflip odds on a same-session equity move, a contract type that tests whether event-contract platforms can attract liquidity for ultra-short-dated macro questions.