The Mag Seven’s Free Cash Flow Withers

Stocks’ rally off the March 30 lows has been nothing short of wild, with internal market dynamics showing some performance divergences that we haven’t seen for decades. For example, in the first 6 weeks of the rally, the S&P 500 Growth index beat the S&P 500 Low Volatility Index by more than any other 6-week window on record. The prior extreme was set in March 2000, the month of the infamous NASDAQ tech bubble peak. It doesn’t mean the rally has to end (similar outperformance was witnessed in both 2020 and 2025), but this is not the type of stuff we see every day.

With the hyperscalers jumping over each other to build out their AI capabilities, the system is being fueled by burgeoning capital expenditures. Morgan Stanley recently upped its estimate for the hyperscalers’ combined capex to a figure “approaching $800 bn” in 2026, up from $261bn and $449bn in 2024 and 2025, respectively.

Subtract capex from operating cash flow to derive free cash flow, the financial metric that is the foundational principle in equity valuation. That is because the value of any stock is mathematically equal to the net present value of all such future flows.

The problem for some Magnificent Seven members is there isn’t much free cash flow to speak of, at least not now. Between Amazon, Alphabet, Tesla and Meta, they only mustered $6.6 billion of it in Q1. These four companies have a collective market cap of $10.9 trillion.

Consider Microsoft, which once had capital expenditures amounting to a single-digit percentage of revenues. Today, that figure is up to 37%. This is the type of number you see in oil & gas, or railroads. The market will have to decide if it is comfortable with once capital-lite companies suddenly sending off the same vibes as industrial conglomerates.

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