The Robo advisor does not allow other investments except for 4 ETFs. However, Vanguard can provide 2 extra ETFs to the platform if you enroll in a Vanguard brokerage account and a participant account. The added 2 ETFs are Vanguard FTSE Developed Markets ETF and Vanguard FTSE Emerging Markets ETF. Vanguard FTSE Developed Markets ETF(VEA): The ETF tracks the FTSE Developed All Cap ex US Index. It covers markets,  e.g., the Canadian Stock Market, developed European and the Pacific stock markets. The fund capitalizes on capital growth and involves higher risks. It’s fully invested, and the annual expense ratio is 0,05%. Vanguard FTSE Emerging Markets ETF(VWO): The global stock ETF invests in growing companies from the FTSE Emerging Markets All Cap China A Inclusion Index. It comes across major emerging markets like China, Brazil, Taiwan, and South Africa. The expense ratio is 0.10% per year.