Crypto Derivatives Week 24: BTC drop, ETH bearish funding, put-skew persists
Crypto derivatives markets (Week 24) showed a defensive shift after a near-20% BTC spot selloff. The Block Scholes Risk Appetite Index fell below 0.05, reflecting deteriorating risk sentiment.
The decline lined up with the longest outflow streak from spot Bitcoin ETFs since launch, followed by renewed outflows after a brief pause. In parallel, Strategy Inc. (the largest BTC digital asset treasury) disclosed a 32 BTC sale. Since then, BTC spot has consolidated above $60K, while Strategy announced a $103.1M BTC purchase of 1,550 bitcoins.
Despite the stabilization in price, crypto derivatives positioning remains bearish. ETH funding rates have been negative since June 5, signalling ongoing downside bias among perp traders. Options metrics also point to caution: 1-month ATM implied volatility for both BTC and ETH fell by roughly 20 percentage points, yet the term structure is mildly inverted for both assets.
Volatility smiles remain skewed toward puts. BTC 25-delta risk reversal is just shy of -9%, improving from a deeper -19% skew five days earlier when BTC crashed below $60K. ETH shows similar hedging behavior, with persistent demand for downside protection as ETH is still down about 66% from its August 2025 peak.
Overall, crypto derivatives data suggests reduced expected near-term volatility, but continued demand for downside hedges and a cautious, defensive trade setup.
Bearish
The report links a sharp BTC spot selloff to a risk-off shift in crypto derivatives, with ETH perp funding staying negative (since June 5) and put-heavy option skew persisting. Even though implied volatility fell ~20 points and BTC stabilized above $60K, the mild inversion in term structure and continued demand for downside protection suggest traders still expect tail risk rather than a clean bullish reversal.
Historically, patterns like negative funding plus persistent put skew often precede either choppy downside or slow grind higher while volatility is controlled—bull rallies tend to be delayed until funding normalizes and the skew mean-reverts (risk reversals move toward zero/positive). The renewed ETF outflow and Strategy-related trading (sale then large purchase) also fit a “volatility compression after liquidation” regime, where price may consolidate, but positioning remains defensive in the short term.