Prediction: This Unstoppable Vanguard ETF Will Crush the S&P 500 in the Remainder of 2026

Had you invested in an S&P 500 (SNPINDEX: ^GSPC) index fund at the beginning of 2026, you would have had a 9.5% gain during the first half of the year. But had you parked your money in the Vanguard S&P 500 Growth ETF (NYSEMKT: VOOG) instead, you would have gained 11.5% during the same period.

The S&P 500 is made up of 500 companies from 11 different industry sectors, so it's highly diversified. The Vanguard S&P 500 Growth ETF is an exchange-traded fund (ETF) that mimics the S&P 500 Growth index, which holds only 148 of the best-performing growth stocks from the regular S&P 500, while disregarding the other 352 stocks.

As a result, the ETF tends to outperform the S&P 500 on a consistent basis, and here's why I predict that trend will continue as 2026 draws to a close.

Betting on America's top growth stocks

The S&P 500 Growth index chooses stocks based on factors such as their momentum, and the sales growth of the underlying companies. The Vanguard ETF has 52% of its assets parked in the information technology sector right now, because its constituents have momentum and sales growth in spades thanks to the artificial intelligence (AI) boom. By comparison, the S&P 500 has just 38% of its assets parked in tech.

In fact, each of the Vanguard ETF's top 10 holdings participate in the AI race in one way or another, and the fund assigns them much higher weightings than does the S&P 500.

Stock	Vanguard ETF Weighting	S&P 500 Weighting
1. Nvidia (NASDAQ: NVDA)	13.64%	7.51%
2. Alphabet (NASDAQ: GOOG)(NASDAQ: GOOGL)	10.60%	5.84%
3. Microsoft (NASDAQ: MSFT)	7.80%	4.30%
4. Apple (NASDAQ: AAPL)	5.98%	6.59%
5. Broadcom (NASDAQ: AVGO)	5.03%	2.77%
6. Micron Technology (NASDAQ: MU)	3.66%	2.02%
7. Meta Platforms (NASDAQ: META)	3.48%	1.92%
8. Amazon (NASDAQ: AMZN)	3.48%	3.62%
9. Eli Lilly (NYSE: LLY)	2.67%	1.47%
10. Advanced Micro Devices (NASDAQ: AMD)	2.67%	1.47%

Data source: Vanguard. Portfolio weightings are accurate as of June 30, 2026, and are subject to change.

Those 10 stocks were a mixed bag in terms of performance during the first half of 2026, but on average, they produced a 49% return. Therefore, since the Vanguard ETF assigns them higher weightings than the S&P 500, its outperformance since the start of the year is no surprise.

MU data by YCharts

The biggest laggard of the group, Microsoft, has bounced back to start the second half of 2026, with a gain of 28% since June 30 thanks to blockbuster second-quarter operating results. Amazon stock has soared by 15% because of its own stellar Q2 results.

Concerns about the sustainability of the AI infrastructure spending boom have triggered some volatility in chip stocks such as Nvidia, Broadcom, Micron, and AMD during the past couple of months. However, some of their largest customers have shown no desire to pull back on their investments in data centers, so each of those stocks could rally nicely into year's end.

The Vanguard ETF has an excellent track record against the S&P 500

Zooming out and looking at the longer term, we see the Vanguard S&P 500 Growth ETF has delivered a compound annual return of 16.7% since it launched in 2010, beating the S&P 500, which climbed by an average of 14.2% per year during the same period.

Although that 2.5 percentage-point difference might not sound overly significant, it would have made a serious impact in dollar terms thanks to the magic of compounding.

Starting Balance In 2010	Compound Annual Return	Balance In 2026
$50,000	16.7% (Vanguard ETF)	$591,702
$50,000	14.2% (S&P 500)	$418,434

Data source: author.

Therefore, although the Vanguard ETF can certainly continue pulling away from the S&P 500 in the remainder of 2026, investors who focus on the long term could reap the biggest rewards.

Anthony Di Pizio has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Advanced Micro Devices, Alphabet, Amazon, Apple, Broadcom, Eli Lilly, Meta Platforms, Micron Technology, Microsoft, and Nvidia. The Motley Fool has a disclosure policy.