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.
Education
Hedge Strategy Options: Key Techniques for Investment Portfolios
10 min read
Managing risk is crucial in investing. This article delves into hedge strategy options, exploring key techniques for safeguarding your investment portfolio. From hedging strategies with options to...
Education
Options Portfolio Management: How to Build and Balance Positions
11 min read
Master options portfolio management with strategies, risk controls, and practical examples. Learn how to diversify, size positions, and more.
Education
Understanding What Is an IV Crush and Its Implications for Options Traders
14 min read
There are few certainties in the life of an option trader, but the fact that the implied volatility of an option will regularly crush after a major event linked to the company is among these. If...
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
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...
Research
Use a Backtest to Build a 52-Week High or Low Options Trading Strategy [Free Backtest File]
11 min read
When the trend is strong, there could be either trend-following or trend-reversal opportunities at a stock's 52-week highs and lows. Using our backtest file, you can measure the effectiveness of...