"From everyone who has been given much, much will be demanded."— Luke 12:48

Feature Documentation

Complete reference of all calculations and features in AlphaGEX with code snippets and examples

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Core Gamma

Net GEX#1
GEX = gamma × OI × 100 × spot²

Quantifies market maker gamma positioning. Positive = mean reversion, Negative = trending moves

Call Wall#2
Strike with highest call gamma ≥ spot (must be ≥0.5% away)

Identifies gamma-induced resistance where market makers defend

Put Wall#3
Strike with highest put gamma ≤ spot (must be ≥0.5% away)

Identifies gamma-induced support where market makers defend

Gamma Flip Point#4
flip = prev_strike + (strike - prev_strike) × (-prev_net) / (net - prev_net)

Price level where MM hedging behavior changes from long-gamma to short-gamma

Max Pain#5
For each strike: total_pain = Σ(max(0, test - call_strike) × call_OI) + Σ(max(0, put_strike - test) × put_OI); max_pain = argmin(total_pain)

Strike where option holder loss is minimized; acts as price magnet at expiration

Distance Metrics

Distance to Flip %#6
(spot - flip_point) / spot × 100

Measure how far price is from the gamma flip point

Normalized Metrics

GEX Normalized#7
gex_normalized = net_gex / spot²

Scale-independent GEX for comparison across different stock prices

Wall Analysis

Wall Strength %#8
wall_strength_pct = |strike_gex| / |net_gex| × 100

Measures how strong a particular gamma wall is relative to total

Ratios

GEX Ratio#9
|put_gex| / |call_gex|

Directional bias signal based on put/call gamma imbalance

GEX Ratio Log#10
log(gex_ratio) clamped to [0.1, 10]

ML-friendly scaling of GEX ratio

AlphaGEX Feature Documentation • Generated from codebase analysis

50 calculations across 20 categories from 92 source files