As of 2015, the financial investing software NinjaTrader provides a demo edition that includes a playback of market conditions, according to NinjaTrader. Also, with this demo version, users have access to similar features as the live version, such as trade simulation and strategy back-testing.
People can play back certain time periods of a financial instrument's performance up to the second with the Market Replay feature in the demo version as of 2015, explains NinjaTrader. Once the specific time and date loads, the option to rewind and fast forward becomes available. The user can also place simulated trades to estimate possible outcomes. Finally, with strategy back-testing, the results of a stock's performance appear quickly over a course of time on how the user's financial portfolio would have performed on a financial instrument based on designated limits, notes NinjaTrader.