$Meta Platforms (META.US)$  and $Microsoft (MSFT.US)$ joined $NVIDIA (NVDA.US)$ and $Tesla (TSLA.US)$ in the list of the most actively traded stock options after delivering quarterly results that fanned concerns over artificial intelligence spending.  
Facebook parent Meta saw a mix of bullish and bearish unusual option trades adding to Thursday's volume. The biggest of those positions involved an active buyer payi...