A Tech Wipeout and a Mega-IPO Converge: Vanguard’s All-World ETF Faces a Pivotal June

June is turning into a month of extremes for holders of the Vanguard FTSE All-World UCITS ETF (VWCE). A historic SpaceX IPO is set to reshape the fund’s index composition, while a brutal sell-off in semiconductor stocks has already knocked the portfolio back from its all-time high. Caught between these forces — and a quarterly rebalancing — the €40 billion fund is navigating unusual cross-currents.

Chip rout tests the fund’s tech-heavy weighting

The immediate pain stems from a sector-wide collapse triggered by Broadcom. The chipmaker beat top- and bottom-line expectations but disappointed on its outlook for artificial-intelligence processors: third-quarter AI chip revenue came in at $16 billion against an anticipated $17.2 billion, and Broadcom declined to raise its annual guidance for AI semiconductors. The miss sparked a historic single-day sell-off, erasing more than $1.3 trillion in market capitalisation across the sector. The Nasdaq Composite plunged 4% — its worst session since April 2025 — and the Philadelphia Semiconductor Index tumbled over 6%. The pressure continued the following day, with the S&P 500 losing roughly 1% and the Nasdaq 100 falling 2%. Nvidia, Oracle and AMD shed between 1% and 3%, while Apple dropped another 3% after its new Siri AI assistant was blocked from launching in Europe due to EU competition rules.

VWCE’s market-cap-weighted structure makes it particularly vulnerable to just such a rotation. Over 62% of the fund’s assets sit in US equities, with top holdings including Nvidia, Microsoft, Alphabet, Amazon, Broadcom, Taiwan Semiconductor, Meta and Apple. While this concentration has powered strong returns in recent years, it amplifies drawdowns when the tech giants stumble.

Macro headwinds add to the pressure

The tech rout arrived against an already nervous backdrop. The US jobs report for May showed 172,000 new positions — double the consensus expectation — pushing Treasury yields higher. According to the CME FedWatch Tool, the probability of at least one Federal Reserve rate hike this year stood at 72% early Monday. That data point ended a nine-week winning streak for the S&P 500. Citigroup analysts raised their year-end target for the index to 8,100 points (roughly 10% above current levels), but warned that a build-up of both fresh long bets and new short positions in AI stocks has left the market acutely sensitive to negative surprises.

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SpaceX: the fastest IPO inclusion in index history

While the tech sell-off dominates the near-term picture, a structural change looms that will affect VWCE directly. SpaceX is scheduled to debut on the Nasdaq on 12 June with a headline valuation of $1.75 trillion — the largest initial public offering ever. Only about 4% of the company’s shares will be in the free float initially, so FTSE Russell estimates the investable market capitalisation at roughly $70 billion. That figure still clears both the $17.5 billion threshold for the Russell Top 500 and the $13.5 billion cut-off under the FTSE GEIS methodology.

FTSE Russell has already revised its inclusion rules for large IPOs, adopting an accelerated process. SpaceX will be added to the Russell Top 50, Russell Top 200, Russell 1000, the FTSE All-World Index and the broader FTSE World Index. Because the IPO falls close to the regular quarterly rebalancing, the inclusion will take effect at the next scheduled review date rather than the standard five-day post-IPO window. That means VWCE — which tracks the FTSE All-World Index — will have to buy SpaceX shares automatically.

The expedited timeline has drawn criticism. Detractors argue that passive funds are being forced to acquire stock in a loss-making, unproven company before the market has completed its price-discovery process. Vanguard uses a sampling approach for VWCE, holding a representative subset of the index rather than every constituent, which gives its portfolio managers some discretion over timing and position-sizing. Still, the direction is clear: SpaceX will soon be a permanent part of the fund.

S&P 500 investors will have to wait

Not everyone is following FTSE Russell’s lead. S&P Global announced on 4 June that it will not change its own inclusion rules. The S&P 500 demands at least 12 months of public trading and GAAP profitability — criteria SpaceX does not currently meet. That means S&P 500–linked products will not include the company until mid-2027 at the earliest, leaving VWCE holders exposed to the stock far earlier than their US-focused counterparts.

Mechanical buying and the June rebalancing

The forced purchases from Nasdaq-100 and Russell trackers are estimated to total $22 billion to $27 billion. While the proportion channelled through the FTSE All-World is a fraction of that, the timing amplifies the impact: the FTSE quarterly rebalancing falls on the third Friday of June, right as volatility is already elevated in the sectors that dominate the index.

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Performance snapshot and long-term trend

VWCE is currently trading at €160.26, down 0.62% on the day and roughly 3% below its record high of €165.24 set on 3 June. The ETF has still returned 22.95% over the past twelve months and is up nearly 10% year-to-date. Its 200-day moving average sits at €147.51, leaving the current price more than 8% above that level — a sign that the medium-term uptrend remains intact. Over three years, the fund has delivered an annualised net return of about 20%. Net inflows totalled $3.38 billion in the past month alone.

The collision of a mega-IPO, a sector-wide rout and a quarterly index reshuffle makes for an unusually eventful June. But the underlying trajectory — supported by steady inflows and a clear long-term uptrend — suggests that for patient investors, the current turbulence may be just another chapter in a well-diversified story.

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