We propose a robust optimization approach to construct realistic constrained multi-strategy portfolios which starts with the identification of different sources of alpha and the risk-budgeting exercise to optimally combine them. We show how systematic alpha-capture strategies can be combined...

Inter-temporal risk parity is a strategy which rebalances between a risky asset and cash in order to target a constant level of risk over time. When applied to equities and compared to a buy and hold strategy it is known to improve the Sharpe ratio and reduce drawdowns. We used Monte Carlo...

We give strong empirical evidence of a risk anomaly in equity sectors in a number of regions and countries of developed and emerging markets, with the lowest risk stocks in each activity sector generating higher returns than would be expected given their levels of risk, and the converse outcome...

In this paper we present the most compelling empirical evidence yet of a low-risk anomaly in fixed income markets. We show that portfolios invested in bonds with the lowest risk would have delivered the largest positive alpha and highest Sharpe ratios and portfolios invested in riskier bonds...

We considered five risk-based strategies: equally-weighted, equal-risk budget, equal-risk contribution, minimum variance and maximum diversification. All five can be well described by exposure to the market-cap index and to four simple factors: low-beta, small-cap, low-residual volatility and...

Inter-temporal risk parity is a strategy that rebalances risky assets and cash in order to target a constant level of ex-ante risk over time. When applied to equities and compared to a buy-and-hold portfolio it is known to improve the Sharpe ratio and reduce drawdowns. We apply inter-temporal...