10 things you need to know today (SPY, SPX, QQQ, DIA, RH)

Here is what you need to know.
Brexit is coming. UK Prime Minister Theresa May is set to deliver her letter requesting the triggering of Article 50 — Britain's two-year process of exiting the European Union — to European Council President Donald Tusk on Wednesday. The British pound is little changed near 1.2440 versus the dollar.
Global trade is growing at its fastest pace in 7 years. Global trade in goods increased 2.4% in volume terms during the three months that ended in January,