The Fingerprint The two forces are not symmetric. Positive feedback is gentle and sustained. Negative feedback is intense and brief. The ratio between them is the fingerprint that distinguishes every asset class. The feedback structure has been described as two...
The Structure Persists Forty years of algorithmic trading, quantitative finance, and massive capital deployment have not diminished the feedback structure. The adaptive markets hypothesis predicts convergence. The data shows none. There are exactly three possible states for the feedback structure...
Proving It Is Not Random The variance ratio was supposed to kill the random walk. It does something better. It reveals the spectrum’s two forces in a completely different test. Act I revealed the coupled spectrum. Episodes 1 through 3...
The Trend-Equity Paradox Everyone in the industry knows that trend-following provides crisis alpha. Nobody has explained why. The coupled spectrum does. We identified the twenty worst months for the S&P 500 across four decades. These are the months that destroy...
The Coupled Spectrum Sixty-eight markets. One system. The coupling never switches off. Episode 1 proved that the near-zero autocorrelation is a lie. Beneath it, every market oscillates between periods where moves persist and periods where they chop back and forth....
Zero Doesn’t Mean Nothing How we looked beneath the most quoted statistic in finance and found a machine that should not exist. Phase 1 of this series proved that markets have memory. Across sixty-eight futures contracts spanning eight asset classes...
Before You Begin The context, the language, and the question that structures everything that follows. What This Series Is This is a nine-episode investigation into how financial markets actually behave, tested against how they are supposed to behave. The investigation...
Eight articles. Thirty-eight years of science. One verdict. Over the past two weeks, we published an eight-part series that asked a question the mainstream of finance has been unable to answer for decades: why do trends exist? We did not...
What Complexity Economics Means for Your Trading Eight principles from thirty-eight years of Santa Fe science, translated into the language of portfolio construction, risk management, and the practice of following trends I began this series with a question. Why do...
The Economy on a Computer From a single artificial stock to entire economies: how the institutions that regulate the world’s financial systems are abandoning the equilibrium framework, and what that means for the strategies built on its failure On February...
