Research
Backtesting the Parabolic SAR Filter on Any Stock [Free Backtest File]
7 min read
How to read a Parabolic SAR backtest: edge vs. baseline, mean vs. median, and the six checks to run before trading a SAR signal. Free backtest file inside.
The Options Dojo
Featured
Company News
Option Samurai Q3 2026 Version - Watchlists, Technical Indicators and Alerts
6 min read
Our biggest release this year: smart watchlists, scheduled email reports, five new technical indicators, industry filters, and a redesigned blog.
Research
Backtesting the ADX Filter on Any Stock [Free Backtest File]
10 min read
See what ADX sideways, bullish and bearish readings actually did on a stock over the next two weeks, and how to spot a false edge. Free backtest file inside.
Trades
Trade Idea - Bear Call Spread on NOW
3 min read
A bear call spread on NOW: short $172 call, long $182 call to cap the loss at $971. RSI 74, no earnings before expiry, 17% buffer to the short strike.
Blog Categories
6 articles shown for All
Blog List
Education
What Is Rho in Options?
6 min read
Learn what rho means in options trading, how interest rates affect option prices, and when rho matters most. Explained with clear examples for calls and puts.
Education
What Is Vega in Options?
7 min read
Learn what vega means in options trading, how implied volatility affects option prices, and how to use vega for long and short strategies.
Education
What Is Theta in Options?
6 min read
Learn what theta means in options trading, how time decay works for buyers and sellers, and how to use theta to measure portfolio risk.
Research
Backtesting Beta for Volatility Insights: Build Smarter Options Trading Strategies and Portfolio Ideas
10 min read
As an investor, it is likely you have already come across high-beta stocks. These stocks can significantly overperform in bull markets and underperform in bear scenarios. While we would not advise...
Education
Short Strangle: A Strategy for Stable Markets [Theory, Example, and Things to Know]
9 min read
One of the features traders enjoy the most about options trading is likely the possibility to earn even in a sideways market. The short strangle option strategy allows this by selling a call and a...
Education
Christmas Tree Options Strategy - A Defined-Risk Setup for Advanced Traders
7 min read
The christmas tree options strategy is a defined-risk setup that uses multiple strikes for targeted outcomes.
Featured Research Blog List
Research
Backtesting the Parabolic SAR Filter on Any Stock [Free Backtest File]
7 min read
How to read a Parabolic SAR backtest: edge vs. baseline, mean vs. median, and the six checks to run before trading a SAR signal. Free backtest file inside.
Research
Options Trading Strategy Guide: Using ADX to Backtest Iron Condors
15 min read
As an options trader, don’t you think it would be nice to have a way to know when a stock price is most likely to move sideways for a while? This guide shows how the ADX indicator can help you set...
Research
A Backtested Approach to Using Bollinger Bands in Options Trading - Part 1
14 min read
All traders know that, in general, a few rules will hold true no matter what the market climate is (especially when using the Bollinger Band indicator or similar tools). For instance, stocks move...