Vanguard Russell 1000 Growth ETF (VONG) delivered a 1,100% total return over the last 16 years — outperforming the S&P 500, which returned 774% across the same period — a gap that matters for investors weighing concentrated large-cap growth against broader small-cap options.
VONG’s 16‑year compound annual growth rate was 17.1%, compared with the S&P 500’s 14.8% over the same span. Launched in 2010, the fund holds about 400 names and charges an expense ratio of 0.06% while offering a trailing‑12‑month distribution yield of 0.40%. The fund’s gains have been driven by a heavy concentration in technology: tech firms account for 51% of VONG’s weight, and its three largest positions are Nvidia at 13.23%, Apple at 11.13% and Microsoft at 8.70%.
By contrast, the Vanguard Small‑Cap Growth ETF (VBK), which tracks the CRSP US Small Cap Growth Index and debuted in 2004, spreads exposure across a larger roster — 579 holdings — and a different sector mix. Technology is 26% of VBK, industrials 25% and healthcare 15%. Its biggest individual positions are tiny by comparison: Bloom Energy at 1.11%, Ciena at 1.10% and Comfort Systems USA at 0.95%. VBK’s expense ratio is 0.05% and it, too, shows a 0.40% trailing‑12‑month yield; Vanguard describes VBK as potentially useful diversification for portfolios already tilted toward the S&P 500.
The friction in choosing between the two is straightforward. VONG’s long run of superior returns has been concentrated in a handful of mega‑cap tech winners — the top three holdings alone account for roughly a third of the portfolio — which magnified gains during a tech‑led rally. VBK lacks that single‑stock and sector concentration, trading the possibility of lower volatility from mega‑cap swings for broader exposure to smaller growth companies across industrials and healthcare, among other sectors.
Put another way: fees and yields are nearly identical, so the practical difference comes down to market‑cap exposure, sector mix and the single‑name risk investors are willing to accept. VONG benefits investors who want concentrated, large‑cap technology exposure that has surged in the last 16 years; VBK appeals to those who prefer more companies, lower individual position weights and a heavier tilt toward small‑cap growth outside mega tech.
The most consequential unanswered question remains personal: which risk do you prefer to own? The data show VONG beat the S&P 500 handily over the past 16 years, but that historical outperformance does not settle whether concentrated mega‑cap exposure or broader small‑cap diversification is the better building block for any given portfolio. Investors deciding next steps should map current S&P 500 exposure, measure tolerance for concentration, and choose the ETF that fills — rather than doubles — the hole in their allocation.
