I'm certain the exchange's price will be displayed at
https://winkdex.com/ when trading starts because the Winklevoss twins started that site to track the price of Bitcoin across exchanges. Their Gemini exchange will also have a page showing it's current price, plus the bids and asking prices. Trading starts tomorrow at 9:30 am in New York time, which is when people get home from work in China, so the Chinese will have a chance to send Bitcoin to the moon before they go to bed.