The artificial intelligence trade, a cornerstone of this year's equity rally, may be approaching a critical threshold. According to Ruchir Sharma, chairman of Rockefeller International, a sustained move above 5% on the 10-year Treasury yield would pose a significant challenge to the broader market and particularly to AI-related stocks.
The benchmark yield currently hovers near 4.95%, having briefly touched 5% in mid-September—a level not seen since 2007. Sharma, in his latest research note, emphasizes that the 10-year note is "the most important asset in the world" because it anchors borrowing costs for auto loans, mortgages, and corporate debt.
Why higher yields hit AI stocks hardest
The mechanism is straightforward: higher yields increase the discount rate applied to future earnings, disproportionately affecting long-duration, high-growth equities. AI companies, whose valuations rely on profits expected years down the line, are particularly vulnerable. As Sharma explains, the more a stock's value depends on distant cash flows, the more those future earnings are worth less when interest rates climb.
Compounding the issue is the shift in corporate financing. Mega-cap AI firms are increasingly tapping the bond market to fund massive infrastructure buildouts, as capital expenditures outpace free cash flow. This ties their equity valuations more directly to the cost of debt. Goldman Sachs noted this week that rising AI infrastructure spending, combined with heavy government borrowing, is intensifying competition for capital, pushing bond yields and funding costs higher even as corporate earnings remain resilient.
What's driving the 10-year yield up
Three forces are pushing rates upward. First, the Federal Reserve raised its benchmark rate by a quarter point on Wednesday, lifting the federal funds target range to 3.75%–4.00%—its first hike since 2023. Chair Kevin Warsh also highlighted inflation running near 3.4% to 3.7%, well above the Fed's 2% target for a fifth consecutive year.
Second, energy costs are adding pressure: Brent crude has traded above $100 per barrel due to the Iran war, pushing diesel prices to record levels. Third, the government's borrowing needs are growing—federal debt has surpassed $40 trillion, leaving the bond market with far less spare capacity than in the 1990s.
The significance of the 5% level
Sharma's research indicates that the stock-bond relationship changes character above 5%. Instead of moving inversely, stocks and bonds begin to move together, and above roughly 5.25%, stocks have historically fallen outright. This provides investors with a concrete number to monitor rather than a vague sense of rate anxiety.
One buffer remains: corporate balance sheets are healthier now than in the 1990s, reducing the odds of a repeat of that decade's stress. However, if the 10-year yield settles above 5% rather than merely touching it, the market's willingness to reward AI spending on faith alone will be tested against the price of borrowing to fund it.
As Wall Street rebounds on easing yields, the focus remains on whether the 5% threshold holds. Meanwhile, chip stocks have defied the Fed hike so far, but the sustainability of that resilience is uncertain. The divergence between US and China yields adds another layer of complexity to global rate dynamics.
This article is for informational purposes only and does not constitute financial advice.
