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The asymmetry in spot-vol that catches people out

Imran Lakha
Imran Lakha2 min read

Vol often collapses faster on the bounce than it rose on the sell-off.

That asymmetry catches people out, and it's worth understanding before you put on your next long-vol or put structure.

In a regime where everyone is selling calls, the spot-vol relationship runs on different gradients depending on direction.

Watch the path on the way down. The market sells off, vol ticks up, but only on a shallow gradient. It doesn't really catch a proper bid even on a decent drop, because the move down was quite orderly and not a crash. Then the market bounces. Vol gets slammed down a much steeper path than it rose as all the vol sellers come out at once.

The appetite to sell calls into a rally is ferocious in this regime. Every leg up brings another wave of overwriters dumping premium into the bid. The bounce hollows vol out faster than the sell-off ever built it up.

That asymmetry is where the damage gets done.

If you're holding long vol or a put structure into this, the trade can look fine on the way down. Then the market bounces and the position gets gutted. The surface re-prices against you faster than the spot move would suggest. Your puts lose value from both delta and the vol re-pricing happening underneath them.

For me, the lesson is simple. In a heavy call-selling regime, you have to monetise these structures fast. The surface doesn't really wait for you.

How do you spot a call-selling regime before it bites you? It starts by clicking the link below.

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Bitcoin has been a clear example in recent weeks. Look at the difference in slope on the way up in vol versus the way down. The shallow climb on the sell-off, the cliff-edge collapse on every bounce. Same asset, two completely different gradients.

That's the asymmetry priced in real time.

If you've been buying puts or owning vol on BTC in this regime, the carry is brutal. Even when the spot move would have justified a much higher implied, the call-selling on every bounce kept slamming vol back down before you could monetise.

When the regime is short call-driven, the surface punishes patience. Knowing which regime you're in before you put the trade on is the whole game.

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Imran


Disclaimer (Your Gains & Losses, Your Responsibility): This content from Options Insight LLC (“Options Insight”) is for educational purposes only and does not provide individual investment advice or recommendations, nor should it be considered an offer to buy or sell any security. All information is general and not tailored to your specific objectives, financial situation, or risk tolerance. Employees of Options Insight may hold positions in the assets discussed. While we use sources believed to be reliable, we are not responsible for errors, omissions, or losses resulting from reliance on this content. Always consult a licensed investment professional.


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