ETH ETF Optimism and Short-Dated Call Buying in Option Flow

Summary

This market commentary recounts option activity around a CPI-driven rally, a subsequent reversal, and optimism about the timing of Ethereum ETF approvals. It describes call buying across Bitcoin expiries during the initial bounce, followed by call unwinds, call overwriting, put buying, and a risk-reversal trade. These flows were associated with softer call skew and lower implied volatility heading into the weekend. The report gives volatility readings for Bitcoin and Ether, including two-week at-the-money levels that it says fell below realised volatility.

After reports of promising approval news, ETH rebounded from a stated low near $3,360, and traders bought June 21 calls with strikes from $3,500 to $3,700. The author frames the setup as attractive because spot was near its low, positioning was short, call skew had fallen, and implied volatility was below realised volatility. The commentary records a brief market episode and asks whether the rebound would persist; it offers no systematic test or evidence that the option-flow interpretation predicts subsequent returns.

Key ideas

• The commentary links a CPI rally and reversal with changing call, put, and risk-reversal activity.
• Call selling and some put buying were associated with lower call skew and implied volatility ahead of the weekend.
• Reports of closer ETH ETF approval timing coincided with an ETH rebound and buying of June 21 calls from $3,500 to $3,700.
• The author considered depressed implied volatility relative to realised volatility supportive of buying calls.
• The note describes a specific episode and leaves the durability of the rebound unresolved.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.