Datadog’s stock soars on S&P 500 nod — as the wait continues for Robinhood - MarketWatch
1. Robinhood was a predicted candidate for S&P 500 inclusion. 2. Datadog, not HOOD, was selected for the S&P 500. 3. Index committee's criteria impact Robinhood's chances for future inclusion. 4. Datadog's $47 billion market cap highlights competitive landscape. 5. S&P 500 changes reflect strategy beyond just market cap considerations.