technical-indicator-suite

name	technical-indicator-suite
description	Calculate RSI, MACD, Bollinger Bands, ATR, and EMA for any stock or ETF. Provides programmatic technical indicator values with buy/sell signal interpretation. Use when user asks for RSI, MACD, Bollinger Bands, ATR values, wants to calculate technical indicators for a specific stock, or needs signal-based entry/exit levels from indicators.

Technical Indicator Suite

Calculate RSI, MACD, Bollinger Bands, ATR, and EMAs from price history and generate signal-based interpretations.

When to Use

• User asks for RSI, MACD, or Bollinger Band values for a specific stock
• User wants to know if a stock is overbought or oversold by indicators
• User needs ATR for position sizing or stop placement
• User wants programmatic indicator values (not a chart image)

Prerequisites

• No API key required for yfinance data
• FMP API key optional for higher-quality OHLCV data

Workflow

Step 1: Calculate Indicators

# Single symbol with all indicators
python3 skills/technical-indicator-suite/scripts/calculate_indicators.py \
  --symbol AAPL \
  --output-dir reports/

# Multiple symbols, specific indicators
python3 skills/technical-indicator-suite/scripts/calculate_indicators.py \
  --symbols AAPL NVDA MSFT \
  --indicators rsi macd bb atr \
  --rsi-period 14 \
  --output-dir reports/

# Screen for RSI < 30 or RSI > 70
python3 skills/technical-indicator-suite/scripts/calculate_indicators.py \
  --symbols AAPL NVDA MSFT AMD META \
  --rsi-oversold 30 \
  --rsi-overbought 70 \
  --output-dir reports/

Step 2: Interpret Signals

RSI (14-period):

• < 30: Oversold — potential mean reversion long

• 70: Overbought — potential mean reversion short or trailing stop tightening

• Divergence (price new high, RSI lower high): bearish momentum divergence

MACD (12/26/9):

• MACD line crosses above signal: bullish momentum shift
• MACD histogram expanding above zero: trend acceleration
• Negative histogram shrinking: potential bullish reversal ahead

Bollinger Bands (20/2σ):

• Price at lower band + RSI < 35: high-probability mean reversion setup
• Bollinger Band squeeze (bandwidth < 5%): breakout imminent
• Price walks upper band: strong uptrend, hold longs

ATR (14-period):

• Stop = entry − (1.5 × ATR) for trend trades
• Stop = entry − (0.5 × ATR) for mean reversion
• Position size = Risk $ / ATR

Step 3: Combine Signals

Signal confluence scoring:

• RSI + MACD crossover aligned: 2 points
• Price at support + BB lower: add 1 point
• Volume confirmation: add 1 point
• 3+ points = high-conviction setup

Output

• indicators_YYYY-MM-DD.json — Raw indicator values + signal flags
• indicators_YYYY-MM-DD.md — Signal summary table

Resources

• references/indicator_interpretation.md — Signal thresholds and confluence rules