Higher Yields Are Hurting the AI Rally, BofA Says

TL;DR: Bank of America strategists led by Michael Hartnett say higher bond yields are now hurting the AI stock rally, according to Investing.com. The note argues that bond markets, not stock buyers, are now setting the limit on how fast the AI buildout can grow.

What did Bank of America say about AI stocks and bond yields?

BofA's team says risk assets and AI both need yields to fall. According to Investing.com, the strategists point to 42 global central bank rate hikes in six months, a stronger dollar and higher Treasury yields over four months.

The spending side of the note is large. Investing.com reports that BofA forecasts hyperscaler capital spending rising from $240 billion in 2024 to $1.2 trillion in 2027. Over the same period, it expects free cash flow to fall from $240 billion to negative $180 billion.

The team also named two price levels to hold before a year-end rally can start. Those are $70 for the Roundhill Magnificent Seven ETF (MAGS) and $520 for the VanEck Semiconductor ETF (SMH), per the same report.

Why are bond markets policing AI spending?

Because the companies are paying for the buildout with borrowed money, and lenders now get to price it. Investing.com reports that hyperscaler debt issuance reached $182 billion in 2026, up from $17 billion in 2024. BofA also notes that $89 billion of hyperscaler equity was issued this year and says the era of big buybacks is over.

A second count points the same way. Data from LSEG, cited by The Hill, shows Amazon, CoreWeave, Google, Meta, Microsoft and Oracle had issued $193 billion in bonds as of early August, up from $16.7 billion in 2024. The two totals differ in scope and date, so treat them as the same trend measured two ways.

The sharpest example is CoreWeave. Axios reports that the corporate bond market sharply repriced the rates it thinks CoreWeave should pay in recent weeks, pushing them to nearly 16% at times.

Data point	Figure	Who reported it
Hyperscaler capex forecast, 2027	$1.2 trillion (from $240 billion in 2024)	BofA, via Investing.com
Hyperscaler free cash flow forecast, 2027	Negative $180 billion	BofA, via Investing.com
Hyperscaler debt issuance, 2026	$182 billion (from $17 billion in 2024)	BofA, via Investing.com
Big-tech bonds issued by early August	$193 billion (from $16.7 billion in 2024)	LSEG, via The Hill
CoreWeave borrowing rates in recent weeks	Nearly 16% at times	Axios

The table shows one pattern. Spending outruns cash. Lenders fill the gap and charge for the risk, which is why a bond desk can now slow a buildout that stock buyers were happy to fund for two years.

What does this mean for an investor who owns tech through an index fund?

It means your concentration is probably higher than you think. Axios reports that tech stocks and hyperscalers now account for more than half the capitalization of the S&P 500, which it says is higher than during the dot-com boom that peaked in early 2000.

Other firms are reading the setup with less alarm and less certainty. CNBC reports that Capital Economics expects the S&P 500 to eventually fall to 6,500 by the end of 2027 if air keeps leaking out of the AI trade. It also expects a final tech-led rally this year first. Strategists disagree on timing. None of these notes is a forecast you can verify.

For readers who look at private markets as a way to diversify, the same rate pressure applies there. Higher yields change what an illiquid lockup has to pay you. Our pieces on private credit yields and risks and interval fund fine print cover that trade-off, and the Magnificent Seven valuation comparison covers the public side.

What to watch next

BofA says the release valve is likely in the first half of 2027. Its conditions are geopolitical peace, a big drop in oil and an end to rate hikes, according to Investing.com. Until then, the note ties the AI trade to the direction of Treasury yields. Watch them. If yields keep rising, watch the financing costs of the biggest spenders, and if they fall, the pressure eases.

Common mistakes

The first is reading a strategist's price level as a trading signal. BofA named $70 for MAGS and $520 for SMH as levels to hold, which is a technical marker and not a promise of a rally.

The second is treating a 6% to 8% bond yield as free money. Investing.com says BofA finds Magnificent Seven bond yields in that range attractive, but a yield is the price of the risk, and CoreWeave's near-16% borrowing rate shows how fast that price can move.

The third is assuming you're diversified because you own several funds. If each one holds the same large tech names, the exposure stacks.

FAQ

What is the bond market outlook for the future?

BofA's note says yields need to fall for risk assets to rally, and it sees that happening in the first half of 2027 if geopolitical peace, lower oil and an end to rate hikes arrive. That is one firm's view, not a certainty.

Should I pull my money out of the stock market?

Nothing in these sources tells individual investors to sell. They describe risk, and they disagree on timing. Check how much of your portfolio sits in a few large tech names and how much you could not sell for three years. A qualified adviser can help with the decision.

Is BAC a buy?

The sources here cover Bank of America's research, not its own stock, and this article makes no recommendation on any security. Bank of America's strategists are the subject of the news, not the investment.

Why are bond ETFs down so much?

BofA points to higher Treasury yields over four months, according to Investing.com. Bond prices generally fall when yields rise, which is the basic mechanism behind falling bond fund values.

What to do today

Open your largest brokerage account and list the top ten holdings inside your index funds. Add up how much of the total is the same handful of tech and AI names, then decide whether that share matches the risk you meant to take.

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