Bitcoin Slips Below $78K at Midday as SOL Funding Flips Negative; IBIT Downside Puts Dominate Open Interest

Bitcoin traded at $77,919 near midday Tuesday, down 0.9% over 24 hours, with Solana leading crypto majors lower at $101.86 as its perpetual funding rate flipped to an annualized -9.6%. Options positioning on BlackRock's IBIT showed 166,388 contracts of open interest concentrated at the $20 put strike — well below the $44.50 underlying — pointing to persistent tail-risk hedging rather than directional conviction.

Market Pulse

Spot majors traded softer across the board at midday. Bitcoin sat at $77,919 -0.9% ↓, with an intraday range of 2.15%. Ether tracked lower to $2,446.88 -0.9% ↓, and Solana printed the session's largest decline at $101.86 -1.2% ↓. XRP held up better at $1.3768, off just 0.4%.

Funding rates told a more nuanced story than the tape. Binance perpetual funding for BTC ran at an annualized +4.2% and ETH at +1.2% — modest long lean, not stretched. SOL funding, however, flipped to an annualized -9.6% ↓, consistent with short pressure building into the slide from $103 handle.

Options Positioning

The most striking signal sits in IBIT. With the ETF at $44.50, open interest is stacked heaviest at the $20 put strike (166,388 contracts) — a deep out-of-the-money position that dwarfs the top call strike at $48 (68,448 contracts). The P/C open-interest ratio of 0.73 sits in neutral territory, but the strike concentration points to institutional tail-hedging rather than balanced two-way flow. IV30d prints at 37.1%.

ETHA carries a call-lean intraday flow (P/C volume 0.38) but a heavier put book by open interest, with 73,572 contracts at the $16 strike against the $18.63 underlying. FBTC mirrors the IBIT pattern: puts concentrated at $40 (16,815 contracts) below the $68.61 underlying. BSOL IV30d at 61.1% and XRPC at 64.3% continue to price the widest expected moves in the ETF complex.

Narrative

The tape is trading against a mixed news backdrop. Strategy disclosed a fresh bitcoin purchase after a two-month pause, providing a corporate-treasury bid narrative, while separately pushing back on MSCI's index-eligibility review of MSTR. On the flow side, InflowScan data referenced in third-party coverage showed +$310M ↑ across BTC, ETH, and XRP ETFs in the prior settled session, with BlackRock products driving the demand. Set against a soft spot tape, the divergence is consistent with continued allocator accumulation into weakness rather than momentum chasing.

Afternoon Watch

SOL funding print at next 8-hour cycle — a further slide deeper into negative territory would historically be associated with capitulation-style positioning rather than sustained short conviction.
IBIT $20-strike put open interest — any material unwind would ease the defensive-hedge read on the largest bitcoin ETF book.
Stablecoin supply: USDC contracted $380M and USDT $147M over 24 hours per InflowScan data, a modest net drawdown in dry powder worth monitoring into the EOD prints.