VTSMX Vs. VTSAX: A Comparison Of Two Index Funds

Need to grow your hard-earned money? Let's compare VTSMX vs. VTSAX and which one you should buy.

Both VTSMX and VTSAX are considered to be mutual funds. Mutual funds are usually offered by 401(k) and are considered very similar to Exchange-Traded Funds (ETFs).

The goal of VTSMX is to track the performance of the stock market as  a whole.

VTSMX: Vanguard Total Stock Market Index Fund  Investor Shares

VTSAX is a Vanguard Index fund that was incepted in 2000 to track the Wilshire 5,000 Total Market Index.

VTSAX: Vanguard Total Stock Market Index Fund  Admiral Shares

Here are some of the major differences between VTSMX and VTSAX. These are:

Key Differences

VTSAX has a minimum investment of $3,000. On the other hand, VTSMX has a minimum investment of $10,000.

Minimum Investment

VTSAX is a type of Admiral share fund. On the other hand, VTSMX is a kind of Investor share fund.

Share Classes

VTSAX is usually open to new investors while VTSMX was closed to new investors a few years back as a way of cutting costs.


The number of assets in both VTSMX and VTSAX are almost similar. VTSAX manages assets worth $1,258 billion, while VTSMX manages assets worth $9 billion.

Fund Size