Nasdaq and S&P 500 hit record highs as PCE inflation steadies

The major U.S. indexes closed at fresh all‑time highs on Thursday, with the Nasdaq Composite finishing at 26,917 and the S&P 500 at 7,563 points [1]. The rally came as investors digested a cease‑fire extension between the United States and Iran and a personal consumption expenditures (PCE) report that was roughly in line with expectations [3].

Key takeaways

• The Nasdaq Composite ended the day up 0.91% at 26,917, a record level [1].
• The S&P 500 rose 0.57% to close at 7,563, also a new high [1].
• April’s PCE price index posted a 0.4% month‑over‑month gain and a 3.8% year‑over‑year increase, matching forecasts [3].
• A cease‑fire extension between U.S. and Iranian negotiators helped lift market sentiment [3].
• Treasury yields have been climbing sharply as investors anticipate further Federal Reserve rate hikes amid inflation pressures [2].

Record‑setting index moves amid diplomatic optimism

The Nasdaq’s 0.91% gain was driven by a mix of technology earnings and the perception that the cease‑fire extension reduces geopolitical risk. The deal, which includes a 60‑day memorandum of understanding, was announced early in the trading day and helped reverse early losses on the major indexes [3]. At the same time, the April PCE reading— the Federal Reserve’s preferred gauge of inflation— came in at 0.4% month‑over‑month and 3.8% year‑over‑year, essentially on target with market expectations [3]. Those figures reassured investors that inflation pressures may be easing, even as oil prices remained flat.

Super Micro Computer (SMCI) led the hardware sector, jumping 11.6% after the company disclosed cooperation with Taiwanese authorities to block an illegal export of Nvidia‑equipped servers to China [1]. Dell Technologies also posted a strong post‑market surge of over 20% following its earnings release [1]. Together, these moves underscored the broader market’s appetite for AI‑related hardware despite lingering supply‑chain concerns.

Bond market tension and the outlook for rates

While equities surged, the bond market signaled heightened caution. Treasury yields have risen across the curve since the Iran‑related conflict began in February, with the 30‑year yield reaching its highest level in 19 years [2]. Analysts note that higher yields typically precede Federal Reserve rate hikes, which historically have led to short‑term declines in the S&P 500 [2]. The CME Group’s FedWatch tool now shows a higher probability of a rate increase by January 2027, suggesting that the rally could face headwinds if monetary policy tightens further [2].

Why it matters

The record highs for the Nasdaq and S&P 500 highlight how quickly market sentiment can shift in response to geopolitical developments and inflation data. The cease‑fire extension appears to have removed a near‑term risk premium, while the PCE numbers kept inflation expectations anchored. However, the simultaneous rise in Treasury yields points to underlying concerns about future rate hikes, which could temper equity gains if the Federal Reserve moves to curb inflation more aggressively. Investors will likely watch upcoming macro data and Fed communications closely to gauge whether the current rally can be sustained.