You can hold trades overnight, and through the weekend. However, a trader cannot hold a stock trade overnight into an earnings release. To avoid being in breach of this rule, you must close all such Single Share Equity CFD positions by 3:50 PM Eastern Time on the day of the release, if an aftermarket release, or on the preceding day, if a before market open release.
You are prohibited from entering into an Equity CFD at or near the end of the trading day with intent of profiting from the marketing gap between when the market closes and reopens on the subsequent trading day, as determined by SurgeTrader in its sole and absolute discretion.