Josh's Substack
Josh MalizziMy personal Substack
| Platform |  | Pricing | Only free issues | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 10 | Founded | 4 months ago | Last Issue | 3 months ago |
| Active | |||||
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joshmalizzi.substack.comLatest Issues
The Trade Count Secret: Why Most Trading Systems Fail Out-of-Sample
Most traders obsess over Profit Factor, Sharpe Ratio, Monte Carlo tests, Walk-Forward testing, and regime filtering. But there is a deeper principle underneath all of it. It does not directly improve your equity curve. It does not optimize...
Superpower in Trading: How Portfolios Crush Risk
Most traders spend their time obsessing over individual systems. The perfect entry. The perfect indicator. The one setup that “finally works.” But professional traders, the ones who survive decades, not months, obsess over something very di...
What Are the Core Indicators You Can Use to Build Trading Algorithms?
I came across a question recently that seems simple on the surface, but it’s one of those questions that gets more interesting the longer you’ve been building systems:
“What are the core indicators we can use to build algorithms?”
Thanks...
Do Support and Resistance Breaks Actually Work? A Systematic Test
Shout-out to
This post is based on a good question you raised about whether a stock breaking a support level is a signal that it will continue lower, and whether breaking a resistance level implies further upside. Since traditional suppor...
Using Monte Carlo Permutation to Help Validate Signal Edge
One of the hardest problems in systematic trading is not finding strategies that make money in a backtest.
It is figuring out whether they did anything special at all.
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Authors
The writers behind this newsletter.
I analyze markets through statistics, systematic testing, and probability theory. I don’t predict prices, I measure edge, stress-test it across regimes, and show how portfolios transform ordinary systems into professional-grade strategies.
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