Quantum Stocks Tumbled. Quantum Computing Slumped 18%; Arqit Quantum Down 7%; SEALSQ, Quantum Corp And D-Wave Down 4%

TradingKey - Qualcomm (QCOM) unveiled the next-generation Snapdragon 8 Elite Gen 6 mobile platform at the 2026 Snapdragon Summit and introduced a higher-performance Extreme version.

TradingKey - On September 23, South Korean stocks moved higher in early trading, with semiconductor shares performing actively. The Korea Composite Stock Price Index (KOSPI) opened 1.94% higher at 7,153.99 points, before narrowing its gain to 1.37% to trade at 7,113.74 points. Japanese stock markets are closed today for the Autumnal Equinox Day holiday.

On September 22, Eastern Time, the Nasdaq Composite Index hit a new record high, peaking at 27,272 points; the Nasdaq 100 Index crossed 30,000 points on September 21, serving as an important symbol of market sentiment; meanwhile, the Dow Jones Industrial Average was falling. The direct catalyst behind the Nasdaq's gain came from renewed capital inflows into tech stocks, coupled with pulling-back oil prices, a temporary easing of interest rate pressures, and the continued expansion of demand for AI infrastructure. At the sector level, memory chip stocks led the gains today, with SanDisk (SNDK) surging over 8% intraday to break through the $1,900 mark, while Micron (MU) and SK Hynix ADR (SKHY) rose more than 3%.

TradingKey - Meta Platforms (META) will host its annual developer conference, Meta Connect 2026, in Menlo Park, California, from September 23 to 24. CEO Mark Zuckerberg will deliver the keynote address on September 23 at 4:00 PM PT, with developer-focused sessions taking place the following day.

Meta Platforms (META) will hold its annual product event, Meta Connect 2026, from September 23 to 24 local time. As the company expands the focus of Connect from VR to AI, AR, smart glasses, and the metaverse, the market expects this year's conference to highlight hardware iterations and advancements in its AI strategy.