SHYG invests in broad, vanilla corporate bonds with remaining maturities of less than five years. The fund includes USD-denominated corporate bonds with at least 350 million face value, screened according to Markits liquidity screens. The Underlying Index is market-value weighted with a 3% issuer cap, rebalanced on a monthly basis. SHYG is the short-term (0-5 years) version of iShares' HYG.