Datadog To Join the S&P 500. The Stock Is Soaring After Hours. - Barron's
1. S&P Dow Jones announced Datadog will replace Juniper Networks on July 9. 2. Datadog stock rose about 9% after the S&P 500 announcement. 3. Before the announcement, Datadog shares were down 5.5% this year. 4. Datadog has a market capitalization of $49 billion. 5. S&P 500 index showed a 5.4% increase year-to-date.