ApexVol Research Hub
Methodology, backtest framework, live rankings, and changelog — everything that backs the numbers on ApexVol.
How we compute every number
Full source disclosure: ORATS API endpoints, IV rank formula, Black-Scholes Greeks, POP/POT derivations, backtest assumptions, and known model limitations.
Read the methodology →What changed and when
Public log of methodology updates, calculator additions, data-source changes, and content rewrites. Every research correction is logged here with a date.
See the changelog →Live "Best of" Research
Editorial rankings refreshed monthly. The underlying live numbers (IV rank, options yields) recompute from ORATS on every page load.
Best Stocks for the Wheel Strategy
10 picks with live IV rank and computed 15Δ CSP yield per name.
Most Liquid ETFs for Options Trading
Top 10 ranked by options volume, bid-ask tightness, and IV regime.
Best Stocks for Covered Calls
Quality + IV combinations ranked for systematic call writing.
Best Options Strategies for Income
Strategies ranked by realized win rate, premium yield, and capital efficiency.
Strategy Research (with Win-Rate Data)
Each guide includes the typical win rate at entry, the managed-trade realized win rate, profit-target percentages, and the probability-of-profit math.
Iron Condor — 65-70% Win Rate
Full setup, POP/POT math, profit-target percentage analysis.
Credit Spreads (Put & Call)
Side-by-side put credit spread vs call credit spread, screener.
Bull Put Spread
Bullish credit spread with full P&L examples.
Bear Call Spread
Bearish credit spread, strike selection, and managed exits.
The Wheel Strategy
Cash-secured puts → assignment → covered calls.
All Strategies →
Full strategy library with backtest stats.
Concept Research
Deep-dive explainers on the building-block concepts of options analytics.
Volatility Surface
Live 3D vol surface viewer for AAPL with skew/smile/term-structure breakdown.
Implied Volatility
What IV is, how it's computed, and how to read IV rank vs IV percentile.
Options Greeks
Delta, Gamma, Theta, Vega, Rho — Black-Scholes derivations and trading applications.
All Learning Center →
Full library of options concept explainers.
Free Tools (No Signup)
Live ORATS data and Black-Scholes calculations across 13 of the most-watched tickers.
IV Rank Calculator + Lookup
Live IV rank, 52w high/low, IV history sparkline, and IV crush calculator.
Options Profit Calculator
Multi-leg P&L, all Greeks, price × time heatmap, live chain auto-fill.
Iron Condor Calculator
POP, POT, 6-scenario stress test, live 4-leg chain auto-fill.
Options Greeks Calculator
Δ, Γ, Θ, V, ρ plus theta-decay-by-DTE reference table.
Found an error or want a methodology change?
Methodology corrections are public. Send us a note with your independent calculation; if we agree, the change goes in the next changelog entry with your credit.
research@apexvol.com →