SPY (SPY) Up or Down on May 28?
Market price history
Rolling 7-day window of market NO price with the OU fair-price range overlay.
Not enough history yet for a chart.
New points land on each refresh — check back shortly.
New points land on each refresh — check back shortly.
Market price
YES48¢ (48%)
NO52¢ (52%)
Latest refresh · prices in cents
Polymarket • Volume: $42.2K • Updated 19m agoCloses: 2026-05-28
Polymarket · Financials
OU's Pick
NO at 53¢ · pays 1.9×
Price gap
Polymarket53¢
→OU's fair53¢
Confidence
Low
Historical data shows a slight upward bias for the S&P 500 on any given day but no specific news for May 28 2026 exists to predict a daily move.
High volume$42k
Closes in12h
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