Pinterest shares rocket 20% on strong revenue and user growth

1. Pinterest shares surged 19% after Q4 sales exceeded estimates. 2. Revenue reached $1.15 billion, 18% growth year-over-year. 3. User growth surpassed estimates, with 553 million active users. 4. Pinterest forecasts Q1 revenues between $837M and $852M, above estimates. 5. CEO emphasized increased user engagement and actionable platform strategies.