The S&P 500 and Nasdaq indices reached all-time record highs on May 5 and May 6, 2026 [1, 2].

This surge indicates a shift in investor sentiment, as markets reacted to the stabilization of geopolitical tensions in the Middle East. The record-breaking streak suggests that the investor community is prioritizing economic growth over the immediate risks of regional conflict.

Market participants had previously shown excessive caution regarding the situation in Iran. This anxiety peaked following reports of tanker attacks on May 4, which led some to believe that combat in the Strait of Hormuz was continuing [1]. However, the mood shifted after Defense Secretary Hegseth said that a cease-fire was being maintained and that the U.S. did not seek to resume fighting [1].

Hebei Hakko of Konzu Asia Capital Limited said that the excessive sense of vigilance regarding the intensification of combat faded after those statements [1]. This reduction in risk perception allowed buying pressure to return to the tech-heavy Nasdaq and the broader S&P 500.

While the S&P 500 and Nasdaq climbed, the broader market showed some divergence. The NY Dow fell 72.27 points, indicating a pull-back in certain sectors while others hit peaks [3].

Optimism remains high as the U.S. and Iran are expected to hold a second cease-fire negotiation this weekend [4]. This upcoming diplomatic effort is seen as a critical step in further easing concerns over Middle East tensions.

The rally marks the second consecutive day of record highs for the two major indices [2]. The movement reflects a rapid transition from fear to optimism based on official government communications regarding the Strait of Hormuz.

The S&P 500 and Nasdaq indices reached all-time record highs on May 5 and May 6, 2026.

The divergence between the record-breaking S&P 500 and Nasdaq and the slight dip in the Dow suggests that investors are specifically betting on high-growth and tech sectors as geopolitical risks subside. The market is currently highly sensitive to official rhetoric from the U.S. Defense Department, meaning any shift in the status of the Strait of Hormuz cease-fire could trigger immediate volatility.