Hedging Long Vega Positions Against Falling Implied Volatility

Summary

The document describes an options trader’s exposure: positions are typically long delta and long vega, so falling implied volatility, particularly a decline in the VIX, can reduce profitability. It considers possible hedges including calendar spreads in the underlying options, positions tied to VIX-linked products, and short VIX futures. The central challenge is that volatility-sensitive options on VIX-related instruments may themselves respond in unintuitive ways when volatility falls.

The question also raises portfolio construction concerns, especially balancing hedges across instruments with different margin requirements. No specific hedge method, research reference, or quantitative analysis is provided in the document, so it does not establish which instrument or sizing rule would work best. The examples serve as a list of candidate exposures to investigate. A practical hedge would need to account for how each instrument’s volatility sensitivity changes with market conditions, as well as its other risks and margin treatment.

Key ideas

• Long vega options positions can lose value when implied volatility declines.
• The document considers calendar spreads, VIX-linked products, and short VIX futures as potential hedges.
• Options on volatility-linked instruments may have complex exposure to changes in volatility.
• Hedge sizing must account for differing margin requirements across instruments.
• The document poses the hedging problem but supplies no tested strategy or sizing method.

Tags

# Hedge volatility decreases


# Hedge volatility decreases












My particular options positions are typically a long delta, and long vega. Decreases in implied volatility, or specifically the VIX, can drastically alter the profitability of my position.

Is there a way to hedge this?

My possibilities seem to be:

An additional calendar spread on the two front most series of the asset that I want to have my core long delta and long vega position in.

Being short the VIX in some capacity such as puts on VXX ETF, shorting VXX ETF, long inverse VIX ETF (SVXY), long equity+options position on inverse VIX ETF

My problem is that even on VIX ETFs, and on the VIX itself, ALL associated options contracts are effected strangely by decreasing volatility.

I can also sell VIX futures. The next tricky part for me is balancing the portfolio based on differing margin requirements amongst asset classes. So is there any research paper or article or 'common knowledge' about how to construct this kind of hedge? I could only so far find things about going long volatility.

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