The market is currently closed, and here is the chart for the previous trading day for AAPL.
Next to "bid" it says: 0.00 x 800
Next to "ask" it says: 0.00 x 900
Since the market is closed, what do these values refer to? Are these limit orders currently placed for the market open? Also it was my understanding the bid-ask spread is usually quite tight?
A further question: the graph indicates an opening price of 267.1, but in the summary it says the open was 263.75, quite a large difference. Which number is correct?
I've searched around on Yahoo site and can't find the information. New to all this so thanks for any help.