IDEX Corporation (IEX) Options Chain - Get free stock options quotes including option chains with call and put prices, viewable by expiration date, most active, and more at NASDAQ.com Extended Hours Pre-Market Activity After Hours Activity; In trading, we have the bid-ask spread which is the difference between what buyers are willing to How do I get real-time stock prices on IEX Cloud? | IEX ... IEX Cloud provides real-time prices for US-based symbols during market trading hours. These real-time prices are based on all trades and price-ticks that occur on the Investors Exchange.. For US-based securities, market-wide prices that reflect activity across ALL exchanges are provided with a 15 minute delay - these prices come from the Securities Information Processor / Consolidate Tape