01 What out-of-sample testing is, how to split your data without fooling yourself, and a worked example showing how it exposes curve-fit trading strategies.
8 min read 02 The tick index ($TICK) counts NYSE stocks on upticks minus downticks in real time. Learn the key levels — ±800, ±1000 — and how desks trade the extremes.
8 min read 03 How to read the percent of stocks above the 200-day moving average: key thresholds, divergences, and a worked example from a narrowing rally.
7 min read 04 The volatility risk premium is the persistent gap between implied and realized volatility. Learn how to measure it, why it exists, and how it's harvested.
8 min read 05 The advance-decline ratio divides advancers by decliners to grade a single session's participation. Learn the formula, key thresholds, and how to use it.
8 min read 06 The trade expectancy formula tells you what your average trade is worth. How to calculate it from your log, what counts as good, and why win rate misleads.
7 min read