SHYL tracks a broad and straightforward short-term bond index that includes all high-yield corporate debt meeting the liquidity requirements. Like most US bond funds, SHYL doesnt consider issuer domicile--it simply screens for bonds that are issued and traded in US dollars. SHYL holds bonds with remaining maturities anywhere between zero and five years, although the original maturity must have been no greater than 15 years. Bonds are weighted according to their market value, however, individual issuers are capped at a maximum of 3%. Reconstitution and rebalancing of the fund and underlying index are done on a monthly basis.