The U.S. Equities Industry-Standard Daily OHLC (Adjusted) dataset provides daily Open, High, Low, Close, and Volume (OHLCV) prices for U.S. equities, calculated using industry-standard methodologies, with prices adjusted for corporate actions. The dataset is derived from Equity Securities Information Processor (SIP) trades and covers all major U.S. equity issue types, including common and preferred stocks, ETFs, ETNs, ADRs, warrants, and units. Corporate-action adjustments are applied to ensure continuity and comparability of historical price series across events such as splits, dividends, and other capital changes. It provides both raw and corporate-action-adjusted OHLCV data. In addition to total daily volume, the dataset separately reports regular market-hours volume and FINRA-reported volume. VWAP (Volume-Weighted Average Price) is provided for both the entire trading day and regular market hours, supporting standardized valuation, benchmarking, and historical analysis.