SPGI ▲ +1.0% - S&P Global Inc. $SPGI - S&P Global Announces Agreement to Acquire OpenZeppelin S&P Global rose 1.0% today following its announcement of an agreement to acquire OpenZeppelin, a provider of blockchain security and smart contract infrastructure. The acquisition expands S&P Global's presence in the cryptocurrency and digital asset security market. 17-SEP-2026 08:00 AM ET