Markets and Systems
Michael HarrisSystematic approaches to market analysis, trend, risk, and repeatable alpha.
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 174 | Founded | 3 years ago | Last Issue | 3 days ago |
| Active | |||||
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priceactionlab.substack.comLatest Issues
Strategic or Tactical Allocations? The $42 Million Question
AI-generated
A 100% investment in the stock market has yielded a 10.9% annualized return since 2005 but at 14.8% volatility. The Sharpe ratio is 0.74.
In hindsight, an 848% total return looks impressive, but it represents the path of the...
Systematic Trading Update—August 2026
Market Recap
Daily systematic trading faced headwinds in August, but monthly strategies registered gains.
Large-cap stocks (SPY) ended August up 2.7%, gold (GLD) surged 9.9%, and commodities (DBC) rallied 6.3%, also assisted by a 3.5...
Irrational Market Participants?
One of the most significant regime changes in the market has been the rise in the irrational behavior of some market participants who, with their actions, affect the robustness of the few edges that still exist.
Maybe it is because of soci...
Weekly Market Report: Crude Oil and Inflation
August 31, 2026
Weekly Market Report
Weekly Market Recap
AI-generated
The equal-weight S&P 500 index dropped 0.4% compared to a 0.5% gain for the cap-weighted index.
Markets and Systems is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid...
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| Subscribers | Engagement | 74 | Monthly Web Visits | ||
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Authors
The writers behind this newsletter.
Thirty-five years of market experience and 4 trading books. A pioneer developer of software for identifying price action anomalies. Analyst and hedge fund trader. I never DM anyone with offers; if you get one, it is an impersonator.
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