Major financial institutions are warning that the US 10-year Treasury yield crossing 5.5% will trigger a significant crack in the equity market rally. According to Societe Generale's Alain Bokobza, the 10-year yield at 5.5% would eventually overwhelm earnings growth due to higher borrowing costs and pressure valuations. The current US 10-year yield stands at 4.8%, marking the highest level in nearly two years, while yields across Japan, France, UK, Germany and other G7 nations are at multi-year highs. JPMorgan's Grace Peters has similarly warned that the 10-year reaching 5% will have psychological impact and could result in knee-jerk reactions in equity markets. At 5.5%, the earnings upgrades would no longer be enough to justify valuations, representing the threshold at which equities will begin to be attacked.
Fed Chair Kevin Warsh's hawkish Jackson Hole speech has put a September rate hike firmly back on the table, even as subsequent economic data have shown underwhelming performance. The repricing has been reflected across global bond markets, with the 10-year Treasury yield rising to a fresh 19-month high, while the 30-year yield has also broken above recent peaks. Japan's 30-year yield briefly climbed above 4.18% — a record — before easing back, with the accompanying yen rebound suggesting markets are taking more seriously the prospect of tighter Bank of Japan policy. A 50-basis-point hike at the upcoming meeting, particularly if accompanied by signals of further increases, could revive fears over an unwinding of the carry trade. With US government debt now above $40 trillion, a sustained move in the 10-year yield towards 5% would carry significant fiscal consequences.
U.S. stock investors are increasingly focused on rising Treasury yields as a potential threat to Wall Street's record-setting rally, with the 10-year Treasury yield climbing more than 80 basis points since the beginning of March, reaching 4.79% late Tuesday and its highest level since January 2025. The continued rise in yields is beginning to test policymakers' tolerance for higher borrowing costs, as it was only two weeks ago that the US Treasury announced measures intended to support the bond market, yet yields have continued to climb. Nasdaq 100 futures remain technically weak below 29,250, with the falling wedge pattern pointing to 28,700, 28,230 and 28,000 as key downside levels. The S&P 500 remains up more than 11% in 2026 but was only about 2% below its August 13 record close after Tuesday's decline, with the tech-heavy index recently breaking back below the 21-day exponential average.
While the macro backdrop remains constructive, the market is becoming far less forgiving on valuation. As reported by Investing.com India, the more difficult question is no longer whether the economy can support stocks, but whether individual companies can justify the valuations investors are already paying. This distinction is becoming increasingly important in software, cloud infrastructure, semiconductors and other long-duration growth stocks. The analysis highlights that the market is still offering upside, but it is demanding more discipline and selectivity rather than broad exposure. According to Reuters, investors expect higher bond yields to place a ceiling on further price-to-earnings multiple expansion unless earnings growth continues to significantly outperform expectations.
Despite the rise in yields and Fed hawkishness, investors have so far been able to look past the increase in borrowing costs because of strong corporate earnings and optimism surrounding the U.S. economy. As reported by Reuters, with the second-quarter earnings season largely behind them, macroeconomic factors could have a greater influence on markets. The S&P 500 remains up more than 11% in 2026 and was only about 2% below its August 13 record close after Tuesday's decline. However, with earnings season fading into the background, investors are increasingly turning their attention to inflation, interest rates, fiscal pressures and Treasury yields as the next major tests for the stock market rally. The escalation between US and Iranian forces has pushed WTI above $90 a barrel and towards $95, reviving concerns about a renewed inflationary shock. Barclays' Emmanual Cau has noted that monthly seasonality, mid-term elections, rate volatility and upcoming mega AI IPOs are building the case for investors to selectively reduce risk.
Spotify is beginning to reverse its long-term trend after moving back above the 200-day moving average for the second time. According to the analysis, the stock has returned directly to the descending correction trendline on the U.S. listing and was already beginning to move through it on the German Xetra listing. Snowflake continues to deliver exceptional earnings growth with EPS of $0.62, approximately 37% above expectations, but after a roughly 192% move in less than five months, the valuation risk is becoming impossible to ignore. Broadcom shows strong fundamentals with revenue of $29.59 billion, approximately 1% above expectations, but a P/E ratio around 56 leaves little room for merely good results.
