Stock charts are key for technical trading. The use of a simple picture can tell you the story of a complex topic — and that's especially true when it comes to investing in the stock market. But for ...

Chart 1: Spreads tend to be wider for less liquid stocks (and only the blue stocks trade with 1-tick spreads) Quotes are prices where trades could happen. They persist until the order is cancelled ...

It’s a move that affects trillions of dollars in trade and will reshape prices for everything from cars to medication — while straining relationships with key U.S. trading partners.