Turn of the Month in Equity Indexes
Be long the index around month-end / month-start and lighter mid-month — a calendar clustering of returns.
Definition
Turn of the Month in Equity Indexes refers to end / month-start and lighter mid-month — a calendar clustering of returns. Keep that definition fixed when comparing series, managers, or regimes — renaming the same tape does not create a new signal.
Why it matters
It is a named object desks use to frame risk, positioning, or process. When end / month-start and lighter mid-month — a calendar clustering of returns shifts, related hedges, limits, and narratives usually need an explicit update rather than a quiet assumption.
Case
Suppose a desk is positioned for the opposite of what turn of the month in equity indexes is saying. If end / month-start and lighter mid-month — a calendar clustering of returns moves against that book, the first question is not “is the story clever?” but whether size, hedges, and stop logic still match the observation.
How to read it
Keep the definition fixed, then challenge it with cross-checks before sizing. Prefer a short written null hypothesis for Turn of the Month in Equity Indexes: what would falsify the current reading in the next window?