Streaming market data quotes in the trading platforms are updated in time based snap-shot intervals, which vary by product and region. Tick by tick data can only be retrieved if using an API. The average snap-shot intervals for the trading platforms are listed below:United StatesStocks, Futures, Bonds and Indices - 250msOptions - 10msForex - 5ms over the internet, 1ms using a lease lineEuropeAll products - 250msHong KongAll products - 250msFind information on Tick-by-Tick Data via API in the API Users' Guide.