**# Market Brief — March 28, 2026**

**# Market Brief — March 28, 2026**

**## Top Mover** The primary market movement today came from the featured "Iran x Israel/US conflict ends by June 30?" market on Polymarket. Prices increased 2.5 percentage points to 64% YES (36% NO), with $15K in 24-hour volume. Selected by PolyMCP as the Market of the Day for its high superforecaster disagreement (42.2pp gap) and trending activity (score 12.5), this geopolitical market now has 93 days until resolution. The upward shift signals growing trader interest, though the market remains near the upper probability range, indicating genuine uncertainty about a de-escalation by mid-year.

**## Crowd vs Experts** The Iran/Israel conflict market also shows the largest expert-crowd gap. Polymarket participants assign 64% probability to a resolution by June 30, while Metaculus superforecasters—who have a demonstrated forecasting edge—value it near 22% YES. The 42.2 percentage point divergence is both sizable and persistent, suggesting retail optimism may be overstating the likelihood. Such gaps can linger for weeks, providing an opportunity for contrarian traders to side with the experts. With three months until settlement, the market still has ample time for convergence.

**## Arbitrage Alert** No cross-venue divergences exceeded the 5% alert threshold today. Prices across major prediction markets remained tightly coupled, indicating efficient price discovery with few immediate arbitrage plays. Traders seeking spread opportunities may need to await heightened volatility from upcoming events or earnings.

**## Markets to Watch** - **Illinois vs. Iowa** (closes Mar 28, 22:09 UTC). High-volume sports market ($2.9M) as the NCAA basketball game concludes. Current odds: 73.5% YES for Illinois. Closing tonight, it offers quick resolution and deep liquidity. - **Bitcoin $65K dip in March?** (closes Apr 1, 04:00 UTC). Crypto traders are watching: 60.4% probability BTC falls to $65K before April. Volume stands at $658K. Month-end price action could determine the final outcome. - **Pistons vs. Timberwolves** (closes Mar 28, 21:30 UTC). This NBA matchup sees $571K in volume, with the Pistons at 44.5% YES. Ending tonight, it's another short-duration sports market with decent liquidity.