The S&P 500 ended June on a strong note, capping off its best quarter since 2020, but Polymarket traders are betting the benchmark index could start the second half of the year on a weaker footing.
The S&P 500 gained 0.79% to close at 7,499.36 on Tuesday. However, the July 1 Polymarket contract implies just a 27% probability that the index will open higher on Wednesday.
