IGOV provides exposure to developed market, ex-US sovereign bonds. The fund may invest in investment-grade securities with maturities greater than one year. IGOV specifically targets local-currency-denominated sovereign bonds. The index limits each countrys exposure at 21% and weights their securities in proportion to their market value. In addition, the total market weights of countries with more than 4.6% market weight is capped at 47%. The index is rebalanced on a monthly basis. Investors should be cognizant of IGOV's heavy exposure to Japanese government bonds and the Japanese yen due to its market-value weighting scheme, and investors will inevitably have the greatest single-currency exposure to the euro. Prior to Sep. 1, 2020, the fund tracked the S&P International Sovereign Ex-U.S. Bond Index.