Per Woofun AI data, US equity markets concluded trading on June 19 with broad-based gains, catalyzed by the reopening of the Strait of Hormuz following a US-Iran peace agreement. The Dow Jones Industrial Average advanced 0.14%, the S&P 500 climbed 1.09%, and the Nasdaq Composite rose 1.91%, reflecting renewed investor confidence amid improved geopolitical stability.

The semiconductor sector emerged as the primary growth engine, with the Philadelphia Semiconductor Index surging 6.4% to reach an all-time high. Intel (INTC) led the rally with a 10.64% gain after President Trump announced a strategic collaboration with Apple. Other notable performers included KLA Corporation (KLAC) up 8.73%, Marvell Technology (MRVL) up 7.27%, Taiwan Semiconductor Manufacturing Company (TSM) up 6.94%, and Qualcomm (QCOM) up 6.17%. Optical communication stocks also posted significant gains, with Astera Labs (ALAB) rising 11.31% and Corning (GLW) climbing 11.13%.

Meanwhile, the storage sector saw SanDisk (SNDK) jump 11.54% and Micron Technology (MU) rise 8.70%. In contrast, SpaceX (SPCX) underperformed, closing down 3.56% after dipping 10% intraday.