36 Ways to Buy the Dip - 40 Mean Reversion Entries Across 8 Categories
A $37 book covering 40 mean-reversion entry signals across 8 categories - 36 core entries plus 4 you won’t find published anywhere else. Every entry is stated as a codeable rule, backtested on 30 years of SPY data, and shipped with open EasyLanguage and PowerLanguage code. Written for systematic traders who are done guessing.
Written by Ali Casey, founder of StatOasis and creator of the Algo Trading Masterclass. He builds systematic trading strategies and teaches the workflow behind them - research, build, test, combine, deploy.
Get the book on the store - $37 ↗
What’s in it
Eight categories, 40 entries. Mean reversion is not one entry but a family of them, and most traders meet three or four and assume that is the set. Each entry here gets the same treatment: the rule stated plainly enough to code, and the same test applied to it as to every other.
- Range Position - 5 entries. Where price closed relative to its recent range.
- Classic Oscillators - 8 entries. Traditional momentum indicators and their oversold zones.
- Distance from Reference - 4 entries. How far price has travelled from a mean or a high.
- Momentum & Rate of Change - 4 entries. The speed of a move, and the signals that mark its exhaustion.
- Price Patterns - 6 entries. Pure price-based signals, with no indicator in the way.
- Volatility-Adjusted - 2 entries. Entries normalised by ATR, so the threshold travels with the market.
- Volume-Weighted - 2 entries. Indicators that ask volume to confirm before the entry counts.
- Composite & Adaptive - 9 entries. Multi-component and self-adjusting indicators.
- Plus 4 bonus entries - not published anywhere else, including on this site.
What lands in the download
- The entry guide - 80+ pages
- Every entry written up the same way, with the rule stated plainly enough to code. A4 PDF.
- Open code, EasyLanguage and PowerLanguage
- One unlocked file. Read it, change it, drop any entry into a strategy you already run.
- Quick start guide
- Installation and troubleshooting, so the code runs before the reading starts.
- Four bonus entries
- Not among the thirty-six, and not published anywhere else - including on this site.
Who this book is not for
- Not for you if you want a signal service. There are no alerts here. You code the rules, or you don’t use them.
- Not for you if you trade intraday. Everything is tested on daily bars.
- Not for you if you want the one best entry. The argument of the book is that the ranking matters more than the winner.
Read the method before you buy it
The research this book is built on runs on the same workflow as everything published here, and the archive is free. Mean reversion is most of it - start with the research archive and buy the book only if the way the tests are run is a way you trust.
Get the book
$37, one-time. Instant download. Checkout is handled on the StatOasis store.
Frequently asked questions
- How much is 36 Ways to Buy the Dip?
- $37, one payment, with instant download.
- How many entry signals are in it?
- 40 in total - 36 core entries across 8 categories, plus 4 bonus entries that are not published anywhere else.
- Does it include code?
- Yes. Open EasyLanguage and PowerLanguage code for the entries, in a single unlocked file you can read and modify.
- Which market and date range were the entries tested on?
- SPY, across 30 years of data from 1995 to 2025.
- What software do I need to use it?
- The code targets EasyLanguage and PowerLanguage, so TradeStation or MultiCharts run it as-is. Each entry is also stated as a plain rule, so it can be ported to any other platform.
- What format does the book come in?
- An 80+ page A4 PDF, together with the code file and a quick start guide covering installation and troubleshooting.
Historical backtest results are not a guarantee of future returns. All results are historical and educational. Nothing here is investment advice.