Be Water: An Evolutionary Proof for Trend-Following

2026-03-31

AI Summary

This study addresses the unresolved question of which trading strategies possess evolutionary advantages in highly leveraged and noisy financial markets. The authors construct MAS-Utopia, a multi-agent system comprising 10,000 agents, to simulate a five-year evolutionary process grounded in high-frequency real market data under frictionless trading and universal basic income assumptions. By employing counterfactual environmental settings and an LLM-driven trend-following mechanism, the research reveals—on an unprecedented scale—that trend-following strategies exhibit significant structural superiority over mean-reversion strategies, the latter being systematically eliminated through evolution while the former emerge as dominant. The work introduces an investment philosophy encapsulated as “trend-following like water,” challenging conventional mean-reversion beliefs, and demonstrates the robustness and adaptability of the proposed system.

Abstract

The proliferation of diverse, high-leverage trading instruments in modern financial markets presents a complex, "noisy" environment, leading to a critical question: which trading strategies are evolutionarily viable? To investigate this, we construct a large-scale agent-based model, "MAS-Utopia," comprising 10,000 agents with five distinct archetypes. This society is immersed in five years of high-frequency data under a counterfactual baseline: zero transaction friction and a robust Unconditional Basic Income (UBI) safety net. The simulation reveals a powerful evolutionary convergence. Strategies that attempt to fight the market's current - namely Mean-Reversion ("buy-the-dip") - prove structurally fragile. In contrast, the Trend-Following archetype, which adapts to the market's flow, emerges as the dominant phenotype. Translating this finding, we architect an LLM-driven system that emulates this successful logic. Our findings offer profound implications, echoing the ancient wisdom of "Be Water": for investors, it demonstrates that survival is achieved not by rigid opposition, but by disciplined alignment with the prevailing current; for markets, it critiques tools that encourage contrarian gambling; for society, it underscores the stabilizing power of economic safety nets.

Problem

• evolutionary viability
• trading strategies
• trend-following
• mean-reversion
• financial markets

Innovation

• agent-based modeling
• trend-following
• evolutionary finance
• LLM-driven trading
• Unconditional Basic Income