Picture this situation: You’ve been bullish the euro/U.S. dollar pair (EUR/USD), which has sold off early in the morning and is now down 0.0025 points. You step up and put on a long position and, after taking a little heat — five ticks or so — the market begins to move your way.

Then news hits the wires and propels the euro upward and the price is now 0.0075 points above yesterday’s close. Do you look at this as a gift that should be accepted immediately? Or should you hold on because this might be the start of an unusually big day?