09|29|2026

Boom or Bust | September 25, 2026

Major equity averages posted solid weekly gains as tech mega-caps and easing crude oil prices propelled benchmark indices higher. As long-term Treasury yields have reached multi-year peaks, are equities setting up for a boom or a bust?

Monday              S&P 500 1.49% | NASDAQ 2.26%

Equities kicked off the week with broad-based momentum as large-cap technology and semiconductor shares surged. Renewed enthusiasm for artificial intelligence and infrastructure and enterprise hardware drove outsized gains across the Nasdaq Composite. Easing oil prices provided additional relief, helping major averages shake off post-Fed interest rate concerns from the prior week.

Tuesday                S&P 500 0.00% | NASDAQ 0.45%

The Nasdaq pushed further into positive territory on Tuesday, supported by selective strength in mega-cap software and chipmakers. In contrast, the broader S&P 500 finished unchanged as rising benchmark bond yields pressured interest rate-sensitive sectors such as real estate and utilities. Market breadth showed clear divergence between high-margin tech and rate-dependent value segments.

Wednesday        S&P 500 0.75% | NASDAQ 1.13%

Markets pulled back on Wednesday as the 10-year Treasury yield spiked to 5.11%, reaching its highest level since July 2007 following soft demand at government debt auctions. Elevated sovereign yields spurred profit-taking across high-valuation growth companies and dividend-heavy defensives. Investors reassessed the duration of restrictive financial conditions following the Fed’s recent policy signals.

Thursday             S&P 500 0.02% | NASDAQ 0.01%

Trading remained largely flat on Thursday as investors balanced ongoing fixed-income pressure against steady weekly jobless claims. While the benchmark 10-year yield touched an intraday of high 5.22%, equities displayed notable resilience, consolidating near session highs as crude oil prices continued to retreat toward $92 per barrel.

Friday                   S&P 500 0.51% | NASDAQ 0.48%

Wall Street closed out the week on a positive note, lifting major indices to solid weekly advances. Softer energy benchmarks and dip-buying in cyclical sectors helped offset a weaker final University of Michigan consumer sentiment print. Despite persistent pressure from high Treasury yields, large-cap equities concluded the week demonstrating solid fundamental support.

Conclusion          S&P 500 1.21% | NASDAQ 2.06%

The past week showed that rising sovereign yields and softening consumer sentiment present ongoing macroeconomic friction. Falling energy prices and robust enterprise technology demand continue to support large-cap corporate profitability as well. Energy production disputes have, however, weighed on sentiment and have shown in the data for prices. This week markets were granted some relief after negotiations on the international front included talks with China, and Iran which boosted near-term optimism. Tech railed, sending indexes into record territory with 1 week of trading left in the month of September. The surge may provide insight into where flows are going in a season of market change. Winter months are ahead and energy plays a big role in household budgets. A respite from elevated prices would certainly be welcomed.

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