Pinterest (PINS) Stock News Today: S&P MidCap 400 Addition, tvScientific Deal, Analyst Price Targets, and the 2026 Outlook (Dec. 22, 2025)
Pinterest joined the S&P MidCap 400 on December 22 as part of S&P Dow Jones Indices’ quarterly rebalance. Shares traded near $26.58, up 1.9% intraday. The move follows Pinterest’s December 11 announcement to acquire CTV ad platform tvScientific, with the deal expected to close in the first half of 2026.