Historical data is primarily used for which activities?

• A. Securities research, backtesting strategies and supporting technical analysis.
• B. Real-time order routing.
• C. Customer account management.
• D. Tax reporting.

Answer: (A)

Past market data gives you the record of how prices and volumes moved in the past. This information is essential for securities research—studying how assets behaved, what patterns emerged, and what factors tended to drive moves. It’s also what you use for backtesting trading strategies: you run a rule against historical price data to see how it would have performed and to gauge potential profitability and risk before real trading. Technical analysis relies entirely on historical data to calculate indicators, identify trends, and mark support and resistance levels. Real-time order routing depends on current quotes and market depth to execute trades quickly, not on past data. While account management and tax reporting involve records, they aren’t focused on analyzing past market movements for strategy development. So historical data is primarily used for research, backtesting, and supporting technical analysis.