BTC and ETH Call Spreads as Medium-Dated Volatility Trades
Summary
This options-flow note describes continued medium-dated volatility buying through call spreads in Bitcoin, with similar trades appearing in Ether. The reported structures buy lower-strike calls and sell higher-strike calls, with delta neutrality maintained through perpetual futures. The author considers whether the spreads are intended as market-making support, held directional exposure, a liquidity-seeking structure, or a hedge for an over-the-counter buyer; the flow alone does not settle the motivation.
Open interest rose at some of the principal bought strikes, while activity at the short strikes was mixed or reduced. The note estimates substantial BTC vega buying over the week but says implied volatility remained unchanged amid other selling pressure. It also mentions ETH calendar and call time spreads as well as butterfly restructurings ahead of the holiday period. These observations offer a way to interpret trade construction and positioning, but they are a snapshot of reported flow. They do not establish the traders’ intent or demonstrate the strategy’s profitability.
Key ideas
- Call spreads can buy volatility exposure at lower strikes while selling it at higher strikes.
- Delta neutrality was maintained using perpetual futures in the described BTC and ETH trades.
- Changes in open interest at bought and sold strikes can help distinguish new risk from reductions.
- Large vega flow does not guarantee an immediate change in implied volatility.
- Reported flow can suggest possible motives, but it cannot establish traders’ intent.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.