Trading Time Machine
Dave JohnsonMechanical trading systems. Honest backtests. No hype.
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 126 | Founded | 5 years ago | Last Issue | 7 days ago |
| Active | |||||
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backtest.substack.comLatest Issues
Can the risk context surrounding a trade matter more than the entry signal itself?
In this video, I explain why the same setup can produce different results across exposure readings, how I use Recommended Exposure as a governor for automated daily-bar systems in my own portfolio, what the 0% to 150% scale means, and how t...
How to Become a Better Trader: Why Market Conditions Matter More Than Your Entry Signal
One of the most popular pages on my website has been the SPY Forecast page. Over the years I’ve heard from plenty of traders who check it regularly and use it in different ways, most often watching for the forecast gauges to reach extremes...
Back at the Desk
Six Weeks in Galatina, and What Comes Next
I have not written anything in a while.
Thanks for reading Trading Time Machine! Subscribe for free to receive new posts and support my work.
We spent six weeks in Galatina, down in the heel of...
Demystifying Quant Trading with AI: A Guide for Newer Coders
Welcome back! If you are new to AI coding tools like ChatGPT, Claude, or GitHub Copilot, you might be wondering how to apply them to real-world problems. One of the most fascinating areas you can explore is quantitative finance and the deve...
Buying Weakness on the Nasdaq 100: What 1,668 Trades Say About a Strategy Nobody Recommends
There is a trade that violates almost everything you have been taught about risk.
It buys stocks that are falling. Not stocks that have stopped falling and started to turn, which is what most people mean when they say they buy the dip. It...
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Authors
The writers behind this newsletter.
Former investment advisor. Mechanical trading system developer. I build rules-based systems and share the research behind them at TradingTimeMachine.com.
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