ETFIS Series Trust I ETF(AMEX:PFFR)

PFFR is the first REIT-specific preferred stock fund, as it tracks an index comprised of US-listed preferred securities issued by REITs. All securities are screened so that only those with a yield-to-worst of 3% or higher are eligible to be included in PFFR. The fund is market-cap-weighted and limits any single issue to a 10% weighting. It is worth noting that this fund may include callable and convertible preferred shares, and other securities that have the similar characteristics. The index reconstitutes and rebalances semi-annually at the close of the last trading day of March and September.