Bitcoin options traders are dropping their hedges going into the Fed meeting

Bitcoin's options market has turned notably less defensive over the past month, unwinding the downside protection traders built up in June just as the Federal Reserve prepares to meet.

The put/call ratio on open interest, which measures how much of the market is positioned in puts, contracts that pay off when the price falls, against calls, which pay off when it rises, has dropped to roughly 0.52 from about 0.76 in late June, according to Glassnode.

Calls are gaining share, the pattern of traders stepping back from hedging rather than adding to it. Recently, large traders have been accumulating $70,000 strike calls and bull call spreads, signaling expectations of upside in the spot price.

The 25-delta skew, the premium traders pay for downside protection relative to equivalent upside exposure, has fallen to around 4% at the one-week tenor while three- and six-month contracts hold at 11% to 12%. That indicates traders are still paying for insurance against something going wrong later this year, but have largely stopped paying for it this week.

Implied volatility, or the market's expectation for how much the price will move, is compressed across the curve, at 34.3% for one week against 40.8% for six months.

That upward slope is the market modeling the immediate future looks calmer than the distant one, which is not how the curve usually looks ahead of a scheduled macro event.

The Fed's rate decision lands Wednesday. Markets have put the odds of a July increase at roughly 15%, so the low near-term pricing is defensible on the base case.

It also leaves little cushion if the statement or the projections surprise, and positioning that thin has a way of amplifying moves rather than absorbing them.

Bitcoin held near $65,000 through most of the past week, including Thursday's selloff that took $797 billion off the largest U.S. technology stocks, and through a period in which blockchain networks Movement Labs and Storj filed for bankruptcy protection while crypto exchanges BitMEX and BitMart announced wind-downs.