Bitcoin ETFs see $823M inflows this week, boosting market odds

Bitcoin ETFs received $823M in net inflows this week, with daily increases. The Polymarket contract for Bitcoin reaching a new all-time high by June 30 sits at 3.4% YES, up from 3% yesterday.

Market reaction

The $823M weekly inflow pushed odds higher across all Bitcoin all-time high markets. The September 30 and December 31 contracts trade at 10.5% and 18.5% YES, respectively.

Why it matters

The term structure shows an 8-point jump from September to December, which means traders expect meaningful catalysts in that window. With 67 days until the June 30 resolution, the low odds on that contract likely reflect skepticism about near-term triggers.

Actual USDC trading volume is thin: only $26 moved the June 30 odds. That makes the market sensitive to small buying pressure. The largest recent move was a 2-point spike in the September contract, pointing to a reactive but shallow trading environment.

What to watch

Sustained ETF inflows, Federal Reserve rate signals, and major corporate Bitcoin announcements could all shift these contracts. Jerome Powell’s next FOMC communication is the most obvious near-term catalyst. Traders betting on a new all-time high by June 30 would pay 3¢ per YES share for a potential 29.4x return.

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