As part of Invesco's BulletShares investment-grade suite, BSCY behaves more like a bond than a typical bond fund. The fund provides bullet maturity, in this case, of December 2034, instead of perpetual exposure to a maturity pocket of the US corporate investment grade market. As the fund matures, its maturity, duration and YTM will continue to decline. On its target date, BSCY will unwind and return all capital to investors. This structure permits BSCY to be used as a building block for a bond ladder. At each monthly rebalance, index constituents are market value-weighted, with a 5% limit on individual issuers.