VTIAX is a mutual fund offered by Vanguard that focuses on providing investors with exposure to international stocks. It is designed to track the performance of the FTSE Global All Cap ex US Index, which includes stocks from developed and emerging markets outside of the United States. As an Admiral fund, it offers lower expense ratios and is available to investors with larger account balances. VTIAX is a diversified and cost-effective option for those looking to diversify their portfolio with international equities.