What is the difference between VTI and VOO?

VTI tracks the entire US stock market (~3,700 companies, including small + mid + large caps). VOO tracks the S&P 500 (500 large-cap US companies only). VTI gives you small-cap exposure VOO does not; the two correlate ~99% because the S&P 500 is ~80% of total US market cap by weight.

Do VTI and VOO have the same expense ratio?

Yes — both Vanguard ETFs charge 0.03% TER. The choice is purely about coverage breadth (VTI broader) vs simplicity (VOO is just the S&P 500).

Which is better for long-term US equity exposure?

For most long-term holders, VTI is slightly preferable because it includes the small/mid-cap segment that has historically delivered a small premium over time. The 99% correlation means in practice the difference is marginal — pick one and hold it.

Should I hold both VTI and VOO?

No — VTI already contains every stock in VOO (S&P 500 is ~80% of VTI by weight). Holding both is redundant and just adds rebalancing complexity. Pick one.

How are VTI and VOO taxed in NZ?

Both are US-domiciled — FIF rules apply once overseas-share holdings exceed NZ$50K cost-basis. Distributions incur 15% US withholding tax under the NZ-US treaty. For PIE -tax US-equity exposure without FIF, see Smartshares USF (NZX-listed S&P 500 wrapper) or Kernel S&P 500 funds.

Updated 2026-05-02 Reviewed quarterly

VTI vs VOO: Total Market vs S&P 500

VTI

TER 0.03% · Yield 1.3% · Quarterly

VOO

TER 0.03% · Yield 1.4% · Quarterly

Both from Vanguard, both 0.03% fees. Here's what NZ investors need to know about these two giants.

Quick Answer for Kiwi Investors

They're almost identical. VTI and VOO have 99%+ correlation because VOO's 500 stocks represent ~80% of VTI. VTI adds small-cap exposure (~10%), but both deliver essentially the same returns. Pick either and stick with it.

Head-to-Head Comparison

Feature	VTI	VOO
Expense Ratio	0.03%	0.03%
Holdings	4,000+	~500
Market Coverage	100% US market	~80% US market
Small-Cap Exposure	~10%	0%
Dividend Yield	~1.3%	~1.4%
Share price	See live quote — both platforms typically offer fractional shares, so unit price rarely blocks access
10-Year Correlation	99%+

The Honest Truth

This comparison barely matters. VTI and VOO perform almost identically. The top 500 companies (VOO) make up about 80% of the total market (VTI).

Over 10+ years, the return difference is typically less than 0.5% total. Spend your energy on saving more and staying invested rather than agonizing over VTI vs VOO.

The Small-Cap Argument for VTI

Why VTI's Small Caps Matter

• Historically, small caps have outperformed over very long periods
• More diversification (4000 vs 500 stocks)
• Tomorrow's large caps are today's small caps
• "Own the whole haystack"

Why It May Not Matter

• Small caps only ~10% of VTI anyway
• Recent decades: large caps outperformed
• Returns are 99% correlated with VOO
• You won't notice the difference

For New Zealand Investors

Same Platforms

Both available on Hatch, Stake, Sharesies, and Interactive Brokers.

Same Tax Treatment

Both are US-domiciled Vanguard ETFs. Identical FIF rules, same 15% US withholding tax.

Share-price consideration

VTI historically trades at a lower per-unit price than VOO, which only matters if your broker does not support fractional shares. Sharesies and Hatch both support fractional shares for US ETFs, so this rarely blocks access in NZ.

Key Differences

VTI Characteristics

Total US market (4,000+ stocks)
Includes ~10% small-cap exposure
Lower per-share price (relevant only without fractional shares)

VOO Characteristics

S&P 500 large-cap focus (~500 stocks)
S&P inclusion criteria act as quality screen
Slightly higher dividend yield (~1.4%)

Honestly? Flip a coin. Then invest consistently and don't look back.

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