The Vanguard Information Technology ETF (NYSEARCA:VGT) just gave back a chunk of its 2026 run, sliding 5% in a single week as semiconductor names corrected. The fund is still up about 21% year to date and roughly 39% over the past year, but holders should treat that pullback as the market beginning to question the one thing this VGT cycle has been built on: the durability of hyperscaler AI capital spending. With a 0.09% expense ratio and exposure to the entire MSCI US IMI Information Technology 25/50 universe, VGT is the cleanest, cheapest way to own that capex super-cycle, which also makes it the cleanest, cheapest way to lose money if the cycle cools.
Where VGT sits going into the second half of 2026
The fund’s largest weights, Apple (NASDAQ:AAPL | AAPL Price Prediction), Microsoft (NASDAQ:MSFT), NVIDIA (NASDAQ:NVDA), and Broadcom (NASDAQ:AVGO), are doing very different things this year. NVIDIA’s market cap of almost $4.7 trillion now exceeds Apple’s roughly $4.2 trillion, while Microsoft is down 23% year to date, Oracle is down 23%, and Salesforce has lost 40%. The headline gain hides a wide dispersion under the hood, and that dispersion is the lens for what to watch next.
The macro factor: hyperscaler capex guidance
The single most important macro variable for VGT over the next 12 months is the capex guidance hyperscalers give on their next earnings calls, more so than the Fed funds rate (currently 3.75% after 75 basis points of cuts) or the 10-year Treasury near 4.4%. Microsoft’s quarterly capex hit almost $31 billion, up 84%. Oracle just printed free cash flow of negative $23.7 billion on $55.7 billion of trailing capex. NVIDIA is sitting on $119 billion of supply commitments.
The specific threshold to watch: any hyperscaler trimming forward capital expenditure guidance by more than 10% versus the prior quarter’s framing. The transmission to VGT is direct because NVIDIA and Broadcom together capture most of that spending. Broadcom guided Q3 AI semiconductor revenue to $16 billion, growth above 200% year over year, and that number only holds if Microsoft, Meta, Alphabet, and Oracle keep writing the checks. Read the capex line in each hyperscaler’s 8-K within an hour of release and the prepared remarks on the conference call. The cycle resembles the 2000 telecom build, where one quarter of trimmed orders flipped semicap leaders 30% in weeks.
The fund-specific factor: top-three concentration and the 25/50 cap
VGT’s MSCI 25/50 methodology caps any single holding at 25% and limits the sum of positions over 5% to half the fund. With NVIDIA, Microsoft, and Apple each in the mega-cap tier, the top three drive the bulk of daily NAV moves. NVIDIA alone fell 9% in the past month while Broadcom dropped 13%, which explains essentially all of VGT’s pullback. The quarterly index rebalance is the moment any cap breach gets corrected. Watch the MSCI USA IMI IT 25/50 methodology page for the next rebalance announcement, typically published mid-quarter, and check whether NVIDIA is forced down toward the 25% ceiling. A forced trim adds mechanical selling pressure right when momentum is already weakening.
Holders who want similar tech exposure without that concentration can look at sector peers that equal-weight or cap more aggressively, but no fund matches VGT on cost.
What to do with this
Keep one eye on hyperscaler capex commentary, starting with Microsoft’s next earnings report, and the other on the next MSCI 25/50 rebalance notice. If capex guides stay intact and NVIDIA is not capped down, the AI infrastructure thesis driving VGT remains in force. If either signal cracks, the same concentration that has powered VGT’s 140% five-year return works in reverse.
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