medium · Market Microstructure

If a trader's objective is to minimize total execution costs E[IS] + λ Var(IS), and they observe that market volatility is rising sharply while volume remains stable, the optimal participation rate should typically:

1. Remain constant to satisfy the square-root model
2. Decrease to avoid detection by parasitic traders
3. Increase to reduce exposure to price risk
4. Decrease to minimize the higher impact costs

Sign up free to see the explanation and track your rank →