Interpreting a Kink in Ethereum Options Skew Term Structure

Summary

This market commentary describes an unusual bend in Ethereum options skew at the one-month tenor. It interprets skew through the SABR rho parameter: negative values indicate relative demand for out-of-the-money puts, while positive values indicate relative demand for calls. The one-month reading differs from ETH’s neighboring one-week and two-month tenors and from Bitcoin’s corresponding tenor.

The analysis compares term structures, 25-delta risk reversals, and implied volatility for calls, puts, and at-the-money options. It attributes the recent narrowing of ETH skew to stronger performance in out-of-the-money calls over the prior day, while noting that put volatility remained higher, so downside protection still carried a premium. The two assets had tracked each other closely over the preceding month, and similar divergences had often closed within several days. This is a descriptive snapshot, not a demonstrated trading signal; the observed pattern may not recur or resolve on schedule.

Key ideas

• SABR rho describes whether an options volatility smile is tilted toward puts or calls.
• ETH showed a distinct one-month skew reading relative to adjacent tenors and BTC.
• Stronger out-of-the-money call volatility narrowed the skew, while put volatility remained higher.
• ETH and BTC skew had moved closely together over the prior month, with past divergences often resolving within days.
• The commentary is descriptive and does not prove that the dislocation will close again.

Tags

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