Large institutional trades in major stocks signal potential market moves, but reasons remain unclear.

Significant options activity, flagged as "whale alerts," occurred across health care, tech, and consumer discretionary stocks, with large institutional trades in Altimmune, Arcturus, AppLovin, AMD, Alibaba, Amazon, Tesla, and others. The moves included bearish and bullish call sweeps, put trades, and high-volume transactions exceeding $200,000, often split across multiple contracts. Expiration dates ranged from October 2025 to January 2027, indicating short- and long-term strategies. Open interest and volume spikes suggest heightened market interest, though motivations remain undisclosed. Traders monitor such activity for potential price movement signals, though no guarantees of future performance exist.