Rising Long-Term Rates and Oil Pressure Technology, While Strong Earnings Keep the Broader Market Supported

US equities retreated from record levels this week as the market’s attention shifted decisively from corporate earnings to the bond market. The decline ended three consecutive weekly gains for both the S&P 500 and Nasdaq, while the Dow recorded its second consecutive weekly loss. Year-to-date, however, the indices remain firmly positive: the S&P 500 is up 12.1%, Nasdaq 12.6% and Dow 10.8%.

Friday provided some relief, with the S&P 500 and Nasdaq both gaining 0.4% and the Dow rising 1.0%, but it was insufficient to offset the weakness earlier in the week.

The Bond Market Takes Centre Stage

The principal driver of this week’s volatility was the sharp increase in long-term Treasury yields.

The 30-year US Treasury yield climbed above 5.3% during the week, its highest level since 2007, reflecting a combination of persistent inflation concerns, elevated government borrowing requirements and questions over the longer-term US fiscal position.

This matters considerably for equities.

Higher risk-free rates raise corporate financing costs and increase the discount rate applied to future earnings. The effect is particularly significant for highly valued growth companies where a greater proportion of their valuation depends upon earnings expected many years into the future.

Treasury Intervention Provides Only Temporary Relief

The rise in yields became significant enough to prompt an unusual response from the US Treasury.

Treasury Secretary Scott Bessent announced that the government would double the size of certain buybacks of 10- to 30-year Treasury securities from US$2 billion to at least US$4 billion per operation between September and early November.

The announcement initially pushed the 30-year yield down from around 5.34% to approximately 5.18%, providing temporary relief to both bonds and equities.

However, yields subsequently resumed rising.

That reaction is significant because Treasury buybacks can improve liquidity and alleviate temporary market dislocations, but they do not address the underlying fiscal issue. US government debt has now exceeded US$40 trillion, while investors remain focused on the scale of future issuance and the government’s fiscal deficit.

For equities, the direction of long-term yields may therefore remain at least as important as the Federal Reserve’s next decision on short-term interest rates.

Oil Adds Another Inflationary Complication

Geopolitics also returned to the foreground.

Brent crude rose 6.4% for the week, while US crude gained approximately 5.7%, as Washington threatened tougher sanctions against Iran and uncertainty continued over energy flows through the Strait of Hormuz.

The rise in oil creates an uncomfortable combination for monetary policy.

Recent CPI and PPI readings had reduced expectations for an imminent Federal Reserve rate increase. However, persistently higher energy prices could slow further progress on inflation and ultimately feed into transportation, manufacturing and consumer costs.

The bond market appears increasingly sensitive to this possibility.

In other words, investors are dealing with two distinct interest-rate risks: the Federal Reserve controls the short end of the curve, while inflation and fiscal concerns are increasingly influencing the long end.

AI Leadership Comes Under Pressure

The week’s technology sell-off was particularly visible on Tuesday, when the Nasdaq declined 1.3% and the Philadelphia Semiconductor Index fell approximately 5% in a single session.

The weakness does not necessarily indicate that the underlying AI investment cycle is deteriorating. Rather, it reflects the interaction between elevated valuations and rising discount rates.

Retail Earnings Provide a Mixed Consumer Signal

Consumer-related earnings were less consistent.

Walmart fell sharply after reporting weaker-than-expected US sales growth, adding to concerns that softer employment and recent weakness in retail sales may be beginning to affect consumer behaviour.

At the other end of the spectrum, Ross Stores rose 4.4% on Friday after beating profit and revenue expectations and raising its annual profit forecast. Management also reported growth in both new customers and engagement from existing customers.

The divergence is noteworthy. It may indicate that consumers have not stopped spending altogether, but are becoming increasingly selective and value-conscious.

This makes upcoming consumer data and retailer commentary particularly useful indicators of the underlying economy.

Economic Growth Remains Resilient

Despite the week’s concerns, Friday’s economic data offered an important counterpoint.

US business activity accelerated sharply in August, with strong growth in the services sector offsetting weaker manufacturing activity affected by supply disruptions and the Iran conflict.

This helps explain why the equity correction remained relatively contained.

The market is not presently pricing a recession. Corporate earnings remain generally strong and economic activity continues to expand. Instead, the immediate concern is whether resilient growth, higher oil prices and fiscal pressures will keep bond yields sufficiently elevated to constrain equity valuations.

That is a materially different risk from an earnings-driven downturn.

What to Watch Next (Beginning 24 August 2026)

Next week contains two potentially significant catalysts.

The first is Nvidia’s earnings on 26 August. With semiconductor stocks already under pressure this week, investors will focus closely on data-centre demand, capital expenditure across the AI ecosystem and management’s forward guidance.

The second is the Federal Reserve’s Jackson Hole symposium from 27–29 August, including Fed Chair Kevin Warsh’s first appearance at the event since taking office. Markets will be looking for greater clarity regarding how the Fed intends to respond to the competing forces of softer employment data, resilient economic activity, elevated oil prices and persistent inflation.

July’s Personal Consumption Expenditures price index, the Federal Reserve’s preferred inflation measure, will provide another important input into that discussion. Markets currently assign approximately a 35% probability of a September rate increase, rising to around 66% by December.

The market backdrop therefore remains constructive, but considerably less straightforward than it appeared several weeks ago. Investors can no longer assume that declining inflation will automatically translate into lower borrowing costs.

For the next phase of the market, the interaction between earnings growth and long-term interest rates may matter more than the direction of either variable in isolation.