√365
Definition · Level 11 · Interview practice
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≈ 19.1 — the calendar-day annualisation factor, for markets that trade every day (crypto) or quantities measured over all days of the year, weekends included.
Example
0.5% per calendar day ≈ 9.6% a year.
Where Tradecraft teaches it
Level 11 · Interview practice, in the lesson “Mental math toolkit”: Near-100 products, squares, fraction tables, compounding, square roots and basis points — the shortcuts behind fast answers.
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