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Market Making/●●●●●

Long inventory with earnings ten minutes out

You make markets in a stock you believe is worth 80.0080.00, and random flow has left you long 20,00020{,}000 shares. A scheduled earnings release is ten minutes away, and you are unsure fair value will survive it.

You have two levers: where you center your quotes (skew) and how wide you make them (spread). What do you do to each, and why are they answering different problems?

Show a hint

One lever steers your book back toward flat; the other protects you from being picked off. They are not the same knob.

Your answer

This one is open-ended. Work it through, then check your reasoning against the full solution.

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