The S&P 500 reached a new record high during the US-Israeli war with Iran and elevated oil prices. The market for the S&P 500 opening higher on April 17 sits at 100% YES, unchanged over the past 24 hours.
Market reaction
The April 17 market at 100% YES prices in full confidence that the index will open higher. Oil prices have pulled back slightly to $96, and a temporary truce has eased tensions, which likely explains the bullish positioning. In the past 24 hours, the April 17 market saw $1,351 in USDC traded, with a $1,352 face value. The April 16 market also sits at 100% YES, though it has $0 in face value and no actual USDC traded, meaning no active trading data backs those odds.
Why it matters
The S&P 500 hitting a record high while a military conflict involving Iran is ongoing and oil is near $96 is unusual. Markets at 100% with only $1,351 in volume are thin enough that a single large opposing bet could move the price. The April 16 market having zero volume at 100% YES means the odds there are effectively untested.
What to watch
Sudden geopolitical developments, particularly any breakdown of the temporary truce, could shift sentiment quickly. Federal Reserve statements and further oil price moves are the other main variables. At 100¢ per share, a YES pays $1 if the S&P 500 opens higher on April 17, meaning there is no upside left for new buyers at current prices.
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Spx Opens Up Or Down On April 17 2026| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 17 | 100% | — | — | Trade → |
| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 16 | 100% | — | — | Trade → |
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