Significant Portfolio Reshuffle Ahead for iShares MSCI World ETF

iShares MSCI World ETF (URTH) updates holdings Feb 27. Key adds include AST SpaceMobile & Coherent; major U.S. mid-caps like DocuSign exit. A transitional rebalance before 2026 methodology shift.

A major portfolio realignment is imminent for the iShares MSCI World ETF (URTH). The fund, which tracks the benchmark MSCI World Index, will implement the index's February rebalancing changes effective at the close of trading on February 27. This adjustment involves the addition of 18 new securities and the removal of 27 existing ones, requiring the $6.9 billion ETF to reconfigure its holdings to maintain precise index tracking.

Key Additions and Deletions

MSCI announced the results of its quarterly index review on February 10. The changes to the MSCI World Index, which includes large and mid-cap stocks from 23 developed markets, are notably targeted. The three largest additions by market capitalization are all U.S.-based companies: AST SpaceMobile (satellite-based telecommunications), Coherent Corp (photonics and industrial materials), and FTAI Aviation (aviation leasing and maintenance). Their inclusion nudges the index's sector exposure further toward satellite connectivity, AI-adjacent hardware, and aviation infrastructure.

Conversely, the list of deletions is substantial, with 15 constituents being removed from the MSCI USA segment alone. Notable exits include Alexandria Real Estate, Booz Allen Hamilton, DocuSign, Nutanix, and Paycom Software. This outflow contrasts with only eight new U.S. additions, creating a net reduction in U.S. mid-cap representation that may generate selling pressure in those specific securities.

A Glimpse at the Current Holdings

As of February 20, the iShares MSCI World ETF held 1,320 positions, with a net asset value of approximately $6.92 billion. The portfolio remains heavily concentrated in major U.S. technology firms, which dominate its top holdings:

• NVIDIA – 5.37 %
• Apple – 4.55 %
• Microsoft – 3.31 %
• Amazon – 2.31 %
• Alphabet (Class A) – 2.07 %

The fund's price-to-earnings ratio stood at 25.35, with a price-to-book ratio of 3.86. Its net asset value per share reached $191.27, hovering near its 52-week high of $191.88. Performance data shows a total return of 2.39% since the start of the year, following a strong gain of 21.28% for the 2025 calendar year.

A Transitional Rebalance Before a Methodology Shift

This particular rebalance carries added significance as a transitional event. On January 27, MSCI disclosed that only significant free-float adjustments would be implemented in February. More comprehensive changes are postponed until May 2026, when a revised free-float rounding methodology takes effect.

The total turnover for the broader MSCI World Investable Market Index (IMI) is estimated at a moderate 0.3%. New additions are still being calculated using the existing methodology, with the broader overhaul scheduled for the spring.

Furthermore, MSCI confirmed that companies with significant digital assets (DATCOs) will not be excluded from its indices at this time. Instead, the index provider plans to conduct a broader market consultation on the treatment of non-operating companies.

Implementation and Market Impact

The changes become effective at market close on February 27. Index funds like URTH must execute their buy and sell orders around this cutoff date to minimize tracking error, typically creating predictable volume surges in the affected securities.

With the larger methodology revision scheduled for May, this rebalance represents the final adjustment under the current calculation framework. The concentrated buying from passive investors flowing into the three prominent new additions will likely contrast with the broader selling pressure from the outsized number of U.S. deletions.