Alo Options Expiry Triggers Record Gamma Pin as Dealers Hedge Into Weekend

The clock, not the chart, drove price this week. July 11 options expiry put $6.8 billion in BTC and $2.4 billion in ETH notional on the table, with max pain at $69,500 and $3,600. As the 12:00 GMT cut neared, dealers sold spot to flatten books, pushing BTC to $69,480 before buying it back within 40 minutes. The move was pure mechanics: gamma was long above $70k and short below, so the book pinned itself to the level where exposure flipped.

Data shows the shift. Open interest in BTC $70k calls dropped 31,000 contracts after expiry, while $75k calls for July 25 added 18,000. That means players rolled long bets higher instead of closing, a bullish tell masked by the pin. ETH told a similar story. Put/call ratio reset from 0.61 to 0.48 post-expiry, and skew on 30-day options moved from +2% to -3%, showing traders paid for upside again.

On-chain flows matched the book. Exchanges saw net outflows of 14,200 BTC in the 6 hours after the cut, with two wallets tagged as prime brokers pulling 9,100 BTC to cold storage. That is typical post-expiry inventory clearing, but the size was 2.1x the June average.

Risk now sits with volatility sellers. Realized 7-day vol fell to 38%, yet 1-week implied holds at 51%. If spot drifts above $71k, dealers flip short gamma and must buy dips, creating a tailwind. Below $68k, they sell rallies. The expiry reset the board. Next week’s range is set by those hedge flows, not headlines.
: #Bitcoin #Options #Volatility #CryptoTrading #Derivatives