Trading & Indicators
Building and judging trading systems honestly — backtesting, walk-forward, overfitting, indicators, risk.
MACD Explained: A Practical Guide to the Indicator Everyone Misuses
What MACD measures, the 12/26/9 formula, its three classic signals, and the specific ways beginners misuse it. Honest…
How to Design a Trading Indicator From Scratch
Every indicator transforms the same OHLCV data. The real skill isn’t the formula — it’s normalization, the smoothing-vs-lag…
Drawdown Explained: The Metric That Matters More Than Win Rate
Drawdown is the peak-to-trough loss a strategy puts you through, and recovery is brutally asymmetric: a 50% loss…
Bollinger Bands Explained: Volatility, Squeezes, and Mean Reversion
What Bollinger Bands measure, the 20/2 formula, the squeeze, why a band tag is not a buy or…