DAX rebalancing and implied volatility?

asked by u/hana.chen · 6d · 1 answers

Been trying to get my head around how the quarterly rebalancing of the DAX constituents impacts implied volatility on options, particularly around the index futures expiry. I understand the mechanics of new weightings and all that, but what's the typical market reaction from an options pricing perspective? Does it usually lead to a noticeable bump or dip in IV leading up to or immediately after the effective date, beyond what's just general market noise? Trying to figure out if there's a predictable edge there or if it's mostly priced in well in advance. Anyone got insights from actual trading experience?

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  • u/eva34· 1 pts· 6d

    It's always a fun dance, isn't it? Like watching a slow-motion car crash you know is coming, but still impacts your insurance. I've generally seen a slight uptick in short-dated IVs leading into it as people try to hedge their bets, but it often normalizes fairly quickly unless there's a truly massive constituent change. What kind of instruments are you primarily looking at?

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