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📉 Technical Indicators

LibreFolio provides four technical indicators as chart overlays. Each indicator is explained from two complementary perspectives: the financial interpretation that traders use daily, and the signal processing equivalent that engineers will recognise instantly.

Why two perspectives?

Financial markets are not stationary LTI (Linear Time-Invariant) systems — they are noisy, chaotic, and their spectral content shifts over time. Yet the mathematical tools we apply to extract trend, momentum, or volatility are exactly the same discrete-time filters taught in any signal processing course.


📋 Indicator Overview

Indicator What It Measures Key Use Details
EMA Trend direction Golden/death cross detection 📖
MACD Momentum / trend acceleration Bullish/bearish crossovers 📖
RSI Overbought / oversold Mean-reversion setups 📖
Bollinger Bands Volatility envelope Squeeze → breakout detection 📖