Today's AI U.S. stock insights: 1. Samsung announces a massive stock buyback! Kospi plunged 10% yesterday with two circuit breakers, but today it's up 4%. 2. MU plummeted 13%! Micron is set to release its Q3 earnings after the market closes today, dropping steadily ahead of the report. 3. Classic Elon Musk! SpaceX issued $20 billion in bonds, with $90 billion in demand—oversubscribed by 4x! SPCX ends its 3-day losing streak with a modest 2% gain. 4. Expansion alert! Samsung and SK Hynix plan to invest 1.5-2.5 trillion won in suburban Korea to build wafer and packaging plants. Stock prices soared 5-7%. With increased capacity, HBM won't be scarce anymore—can prices still rise? 5. Zuckerberg is getting into prediction markets too! Targeting Polymarket and Kalshi, the project is codenamed Arena. Initially, it's free with points, but once you're hooked, you'll need to pay. META has dropped 5% this week!