ARM Holdings Rockets 18%, Microsoft, Dell Rise on RTX Spark AI PC Launch - 24/7 Wall St. Stock Market Live June 1, 2026: S&P 500 (SPY) Could See Higher Highs ARM Holdings Rockets 18%, Microsoft, Dell Rise on RTX Spark AI PC Launch By David Moadel Published Jun 1, 12:31PM EDT Quick Read Arm Holdings (ARM) stock jumped to $416 after NVIDIA's (NVDA) RTX Spark Superchip validated Arm architecture for AI PCs, with the chip earning Arm royalties on every unit sold using its instruction set. RTX Spark was unveiled ...