Morningstar examines ARK Invest’s flagship strategy, questioning whether its innovation-driven approach can sustain performance given valuation levels and portfolio construction. The paper digs into concentration, turnover, and speculative growth assumptions, suggesting that past returns may not be a reliable guide.

It highlights that a small number of holdings drove a large share of returns, while many positions remain unprofitable. The more controversial takeaway is that the strategy’s structure may amplify downside risk in less favorable market environments.