Pinterest (PINS) Stock Jumps on S&P MidCap 400 Inclusion: Is the AI Shopping Pivot Undervalued Going Into 2026?
Date: December 8, 2025 Pinterest, Inc. (NYSE: PINS) is back in the spotlight today as the stock reacts to a major index upgrade just weeks after a sharp post‑earnings selloff. Between its entry into the S&P MidCap 400, record user