In pursuit of returns and diversification, growing numbers of investors are embracing alternative risk premia (ARP) strategies, which offer access to well-known sources of excess return potential, such as value, carry and momentum. Portfolios that combine multiple ARP offer not only high return potential but also meaningful portfolio diversification. We believe investors should consider ARP strategies with a long history of persistent returns, a reasonable economic explanation for their existence and the potential to deliver positive returns after transaction costs.