Building crypto portfolios with agentic AI

TL;DR

This paper demonstrates how a multi-agent system can autonomously manage crypto portfolios, showing that dynamic optimization strategies outperform static ones in volatile markets like cryptocurrencies.

Contribution

It introduces a multi-agent system architecture for autonomous crypto portfolio management and compares static and dynamic strategies using Modern Portfolio Theory metrics.

Findings

Dynamic optimization outperforms static strategies in risk-adjusted returns.

Multi-agent system provides scalable and flexible portfolio management solutions.

Adaptive techniques are particularly effective in volatile markets like crypto.

Abstract

The rapid growth of crypto markets has opened new opportunities for investors, but at the same time exposed them to high volatility. To address the challenge of managing dynamic portfolios in such an environment, this paper presents a practical application of a multi-agent system designed to autonomously construct and evaluate crypto-asset allocations. Using data on daily frequencies of the ten most capitalized cryptocurrencies from 2020 to 2025, we compare two automated investment strategies. These are a static equal weighting strategy and a rolling-window optimization strategy, both implemented to maximize the evaluation metrics of the Modern Portfolio Theory (MPT), such as Expected Return, Sharpe and Sortino ratios, while minimizing volatility. Each step of the process is handled by dedicated agents, integrated through a collaborative architecture in Crew AI. The results show that the dynamic optimization strategy achieves significantly better performance in terms of risk-adjusted returns, both in-sample and out-of-sample. This highlights the benefits of adaptive techniques in portfolio management, particularly in volatile markets such as cryptocurrency markets. The following methodology proposed also demonstrates how multi-agent systems can provide scalable, auditable, and flexible solutions in financial automation.