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Francis Keane's avatar

Your intraday volatility ratio looks really useful. Is the (op-cl) ret^2 numerator using 1 minute data (and the denominator also one minute but summed over 5 mins?) Thanks -- Frank (NYC)

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Michael H.'s avatar

Dm'd, its open-close squared ret / 5 min squared rets, don't use 1 min data, only 5 min!

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