Nvidia’s 6.16% Weight and the Missing Emerging Markets: Anatomy of the iShares MSCI World ETF

iShares MSCI World ETF nears $204 record but RSI at 94.6 signals overbought; Nvidia leads holdings; EM outperformance poses divergence risk.

The iShares MSCI World ETF has pushed within a whisker of its 52-week peak, closing at $203.68 on May 26 before easing to $203.56. The vehicle, which manages just under $8 billion in assets, now sits barely 0.2% below the record $204.00 touched the previous session. But the rally comes with a flashing technical warning: the 14-day relative strength index stands at 94.6, deep in overbought territory and suggesting the momentum-driven advance may be stretched.

Nvidia has vaulted to the top of the fund’s holdings with a portfolio weight of 6.16%, overtaking Apple at 4.96% and Microsoft at 3.36%. The shift reflects the chipmaker’s relentless climb this year, which has lifted the entire technology-heavy portfolio. Amazon (2.86%), Alphabet’s dual share classes (A: 2.59%, C: 2.15%), Broadcom (2.16%), Meta Platforms (1.51%), Tesla (1.34%), and Micron Technology (0.92%) round out the top ten. Together they represent 28.01% of total assets, a concentration level that has edged higher in recent weeks.

The fund’s exposure is overwhelmingly tilted toward US large caps, a byproduct of its market-cap-weighted methodology. Technology accounts for the largest sector slice, followed by financial services at 15.22%, industrials at 10.97%, communication services at 9.22%, consumer cyclicals at 9.06%, and healthcare at 8.54%. The price-to-earnings ratio of roughly 24.8 underscores the premium attached to the growth-heavy names that dominate the index.

Short-term technicals reinforce the stretched positioning. The annualised monthly volatility stands at 11.95%, while the 30-day SEC yield is a modest 1.20%. The fund’s total expense ratio of 0.24% is typical for a developed-market ETF, and it distributes dividends semi-annually.

What the ETF does not hold is worth noting. The MSCI World Index excludes emerging markets, and those markets have outpaced developed peers so far in 2026. MSCI data show the EM segment delivering a stronger year-to-date return than the World index itself, which has gained roughly 9.9% since January. The more comprehensive iShares MSCI ACWI ETF, which includes both developed and emerging stocks, has posted a NAV total return of 10.36% year-to-date, slightly ahead of the World-focused sibling. The ACWI product holds about 2,275 positions and charges 0.32%.

An even broader alternative is the Vanguard Total World Stock ETF, which covers more than 10,000 securities across developed and emerging markets plus smaller companies, at a fee of just 0.06%. That fund’s wider net captures some of the EM upside the iShares MSCI World deliberately leaves on the table.

For now, the iShares MSCI World ETF remains a tight proxy for developed-market beta, and its near-record price reflects continued demand for that exposure. But the extreme RSI reading, the heavy reliance on a handful of US tech giants, and the growing divergence between developed and emerging market returns present a complex picture. The fund’s next move may depend less on its own structure and more on whether the broader rotation into growth stocks can sustain its pace.