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A benchmark for the S&P 500
It is ironic that the most important passive index in the world--the S&P 500--is, in fact, managed. For example, the minimum eligibility...
Joseph Mezrich
Sep 302 min read


Sales Growth vs. Earnings Growth: A Deep Dive into Tech Stocks
Understanding the Current Landscape of Tech Stocks Over the past year, sales growth has emerged as a dominant factor in selecting tech...
Joseph Mezrich
Aug 212 min read


AI and the Investment Power of Sales Per Employee
Its impact on employment is among the most widely discussed potential consequences of the AI revolution. But will this shift have a...
Joseph Mezrich
Jun 252 min read


Momentum is a proxy for sales growth
Theories explaining momentum typically fall into behavioral, risk-based, or market structure categories, often avoiding the harder...
Joseph Mezrich
May 291 min read


Tech Narratives Decoded: ChatGPT Meets Metafoura.com
Shifts in factor effectiveness signal deeper market narrative changes--specifically, what investors are pricing. The charts here show how...
Joseph Mezrich
May 132 min read


Themes & Tariffs
Tracking the returns of thematic baskets is a helpful way to see how the tariff turmoil is affecting equities. The chart showing the...
Joseph Mezrich
Apr 241 min read


Is Tech Exceptionalism Gone?
Tech stocks are performing poorly in 2025, with February's tariff-driven market shock accelerating the decline. I made a short video...
Joseph Mezrich
Apr 31 min read


Leverage in Large Caps, Value in Small Caps
Value investing's performance has diverged sharply between large-cap and small-cap stocks in recent years. While value strategies have...
Joseph Mezrich
Mar 31 min read


Tech's Factor Narrative: Profitability Beats Innovation
AI-based techniques, such as natural language processing (NLP) analysis of earnings calls, can reveal management or analyst sentiment about a company, potentially helping to predict market behavior. But what about investors' sentiment? Factor trends—the patterns of which factors generate returns and which factors are dismissed by the market—provide insights into investors' sentiment based on their factor narrative.
Joseph Mezrich
Feb 182 min read
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