Many other brokers have flown the free trade flag over the last 25 years, but those services have gone the way of the buggy whip. Partial Executions. In addition, cryptocurrency markets and exchanges are not regulated with the same controls or customer protections available in equity, option, futures, or foreign exchange investing. Options transactions may involve a high degree of risk. Limit Orders You can choose to make your limit order valid through all hours regular and extended or only during regular market hours.