Explore how differences in portfolio breadth and sector tilt could influence your choice between these two low-cost U.S. equity ETFs.Both the State Street SPDR Portfolio S&P 1500 Composite Stock Market ETF (SPTM 0.73%) and the Vanguard Total Stock Market ETF (VTI 0.76%) are designed as core, low-cost vehicles for broad U.S. stock exposure, making them favorites for long-term investors seeking simplicity. This comparison highlights how VTI’s broader portfolio and vast scale compare to SPTM’s targeted approac ...