BTC ETFs see $2.2B inflows in 10 days, ETH ETFs $663M

BTC ETFs have attracted $2.2B in net inflows over the past 10 trading days, while ETH ETFs saw $663M. On Polymarket, Bitcoin reaching a new all-time high by June 30, 2026, sits at 3% YES.

Market reaction

The BTC ETF inflows have kept the June 30 market flat at 3%, unchanged over the past week. The September 30 market ticked up to 12%, from 10% yesterday. The December 31 market is at 18%.

Why it matters

The Ethereum inflows are a bullish signal for ETH price predictions in April, though specific market odds for ETH reaching $4,000 in April are unavailable. The 8-point gap between the June and September BTC markets (3% vs. 12%) suggests traders expect a catalyst in the next few months, whether from institutional positioning or macroeconomic shifts.

Combined 24h USDC volume across BTC markets is $3,208, and liquidity is thin: only $1,540 would shift the June 30 market by 5 percentage points. The odds are real but easy to move.

What to watch

Sustained ETF inflows or dovish Federal Reserve signals could push the all-time-high odds higher. YES shares at 3¢ on the June 30 market offer a large payout if Bitcoin breaks through, but that depends on continued inflow momentum and regulatory developments. Watch for moves from Michael Saylor and Grayscale, along with any Fed policy shifts.

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