I think I made a mistake investing in VOO - should I switch to VTI or diversify even further?

A Redditor expressed regret for investing solely in the Vanguard S&P 500 ETF (VOO) instead of also including the Vanguard Total Stock Market Index Fund (VTI). Despite the expressed worries, many in the Reddit community reassured that the decision was not a major mistake, as both funds have similarities. A suggestion was made to hold VOO but invest in the Vanguard Total International Stock Index Fund ETF (VXUS) to achieve better diversification for international exposure without incurring losses from selling VOO. Overall, the post reflects common concerns about investment choices and portfolio diversification.

"The Redditor is having some regrets about only buying the Vanguard S&P 500 ETF (NYSEARCA:VOO) and is wondering if they should have also diversified into the Vanguard Total Stock Market Index Fund (NYSEARCA:VTI)."

"One commenter suggested that the Redditor hold their VOO position and buy some Vanguard Total International Stock Index Fund ETF (NASDAQ:VXUS) shares for international exposure."

"Many commenters said that the Redditor did not mess up... it doesn't seem like the Redditor should panic too much about having bought VOO instead of VTI."

Read at 24/7 Wall St.