Broadcom's $370 Billion Shadow: The Off-Balance-Sheet Debate Reshaping Its AI Valuation

Broadcom's record Q2 growth is overshadowed by $370B potential AI debt guarantees, triggering a 5.9% stock drop and analyst concerns.

The math behind Broadcom's growth story has rarely looked better. Revenue climbed 48 percent year over year to $22.187 billion in the second quarter of fiscal 2026, with AI semiconductor sales surging 143 percent to $10.8 billion. The order book stands at a record roughly $110 billion, and Wall Street's average price target sits at $527.88. By those measures alone, this is a company in the strongest growth cycle of its existence.

Yet the stock closed Friday at $392.99 on U.S. exchanges, down 5.9 percent on the day after touching an intraday high of $412.50 and a low of $388.50 on volume of about 29.5 million shares. In Frankfurt, the equivalent slide was 6.5 percent, landing the shares at €339.05 and leaving them 8.3 percent lower on the week. The pullback has pushed the equity just below its 50-day and 100-day moving averages, though it still trades roughly 6.5 percent above the 200-day line. The broader market also retreated from record highs on the same session, with Applied Materials and Intel giving ground — but Broadcom absorbed disproportionate damage.

The trigger has little to do with a single weak trading day. Analysts and bond investors have been zeroing in on the financing architecture underpinning the AI boom: off-balance-sheet guarantees that chipmakers and cloud providers use to shore up their customers' creditworthiness. For Broadcom, the focal point is the so-called Big Sky transaction with Anthropic, a $35 billion debt package for which the company has assumed a repayment guarantee of roughly $29 billion. S&P has signaled it will treat such commitments as contingent debt obligations going forward, while Moody's has cautioned about the concentration risk of stacking these exposures across multiple deals.

The central question boils down to one projection: Bank of America analysts estimate Broadcom's commitments under the AI XPV platform — credit backstops for customer leasing arrangements in AI infrastructure — could swell to as much as $370 billion in senior debt by mid-2029. That figure is not a current balance-sheet liability but a scenario of what could materialize if a growing portion of today's off-balance-sheet guarantees converts into actual payment obligations. Whether that happens hinges on the creditworthiness of the AI customers being backstopped, such as Anthropic, over the life of the arrangements. If a payment stream collapses there, a phantom liability could quickly become a real one. It is this uncertainty — not any deterioration that has already occurred — that is driving the current repricing.

The bearish case deserves serious weight. CreditSights warns these structures are pro-cyclical, amplifying boom-bust dynamics: invisible in good times, suddenly tangible in bad ones. Tiger Global has already trimmed its Broadcom position, a sign that at least some institutional money is no longer fully comfortable with the risk profile. The insider activity tells a similarly mixed story: Director Harry You added roughly $374,000 worth of shares while another director, Mark Brazeal, sold approximately $10 million. Even within the company, there is evidently no uniform view on how heavily this risk should weigh.

Broadcom is hardly alone in this territory, which cuts both ways. Nvidia has floated residual value guarantees of up to 25 percent per deal through its $500 billion financing platform, underscoring that backstop structures have become industry standard rather than a Broadcom-specific overreach. At the same time, Nvidia is reportedly considering cutting its guarantee for an OpenAI data center project from an original $250 billion to below $120 billion — evidence that even the largest players are recalibrating their exposure more cautiously. If that trend persists, Broadcom's willingness to keep writing backstops of this magnitude will come under increasing scrutiny.

The technical picture offers little resolution. At €339.05, the stock sits almost exactly on its 50-day average of €340.18 and remains 21 percent below its 52-week high of €429.60. The relative strength index of 45 signals neither oversold nor overbought conditions — the market is genuinely torn. With annualized volatility at 44 percent, this is a stock that demands conviction from its holders. The broader semiconductor complex is feeling similar pressure: the SOXX index trades roughly a quarter below its highs, while leveraged sector ETFs have fallen more than 60 percent from their peaks.

The bull case rests on the durability of demand. As long as the AI order book keeps expanding and customers like Anthropic service their obligations, the $370 billion projection remains an extreme scenario without immediate balance-sheet consequences — making Friday's slide primarily a repricing of risk premium rather than a fundamental reversal. If, however, a major AI customer's ability to pay deteriorates, the debate over contingent liabilities could move quickly from theory into accounting practice, with corresponding pressure on the valuation.

The next checkpoint arrives September 2, when Broadcom reports quarterly results with analysts expecting earnings per share to climb 90 percent. In the interim, the rating agencies' treatment of these guarantees in upcoming filings — and whether more investors follow Tiger Global's lead — will serve as telling barometers. What makes Broadcom's situation distinctive is that investors are no longer merely evaluating a chip company. They are, in effect, placing a vote of confidence in the entire financing architecture of the AI industry — and the market has yet to make up its mind.