The Global Index Data Service (GIDS) is Nasdaq's comprehensive real-time data feed that provides consolidated access to index and exchange-traded product (ETP) valuation data. GIDS delivers real-time and historical data for all Nasdaq indexes, as well as third-party index data, covering a broad spectrum of asset classes and geographies. This includes equities, fixed income, options, crypto, and alternatives. By offering standardized message formats and high-frequency dissemination, GIDS enables investors, traders, and financial professionals to access critical market data efficiently, supporting better trading performance, accurate portfolio valuations, and informed decision-making.