A small point is that it is a trap for younger players to sell on a Fridays/the end of the trading week. Rather, these days usually present good buying opportunities.
Conversely, if your stock is on a mini run on a Friday/end of the trading week, consider selling into strength during the morning run and buying back in the afternoon. For example, CHP was up around 17% this morning. As it is the end of the trading week, the SP is back down to around opening price....
