VTI may refer to: Virtual TI (Virtual Texas Instruments Calculator) The Vanguard Group Total Stock Market ETF, an exchange-traded fund with ticker symbol VTI. Velocity time integral, a measurement in echocardiography. Vermeer Technologies, original developer of Microsoft FrontPage. Volda TI, Norwegian sports club. VTI trademark by VLSI Technology. Video Terminal Interface (VTI), a video display interface of the polymorphic Poly-88. Virtual Tunnel Interface, another method for route-based IPsec; see VyOS.
https://en.wikipedia.org/wiki/VTI