Technical analysis is applicable to stocks, indices, commodities, futures or any tradable instrument where the price is influenced by the forces of supply and demand. Price data refers to any combination of the open, high, low, close, volume, or open interest for a given security over a specific timeframe. The timeframe can be based on intraday (2-minute, 5-minutes, 15-minutes, 30-minutes or hourly), daily, weekly or monthly price data and last a few hours or many years.