Wealth-Data

Wealth-Data is a highly specialized financial data solution designed primarily for traders and quantitative analysts who rely on accurate historical market data for backtesting trading strategies, and it distinguishes itself through a strong emphasis on data cleanliness and realism rather than broad feature sets or user-friendly dashboards. At its core, Wealth-Data provides end-of-day (EOD) price data for major U.S. equities, including components of indices like the S&P 100, Nasdaq 100, and Dow 30, but what makes it particularly valuable is its rigorous process of correcting common data issues such as price spikes, missing values, and distortions caused by corporate actions like mergers, splits, and special dividends. This focus ensures that backtesting results more closely reflect real market conditions, addressing a major problem in trading where poor data quality can lead to misleading or overly optimistic strategy performance. Another notable strength is its treatment of opening prices, where it uses primary market auction prices instead of arbitrary first trades, improving the realism of simulated trade execution.