stock exchanges


buying/selling multiple items of the same type




bids (offers to buy)

	number	price

	 1,000		12.56			i.e $12.56 per share
	23,000		12.52
	 3,000		12.51


Offers (sell)

	32,000		12.65
	 2,000		12.68
	12,000		12.70


	
current highest offer (buy)
				12.56


current Offers (sell)
				12.60




A trade (transaction) occurs when one side agrees to the other side's bid/offer


course of trades


number  price


1,000	12.56
4,000	12.54
3,000	12.56
5,000	12.58
...
...






Items listed

	Shares in XXX Mining Corp.

	1tn Lemons, July delivery

	etc.



high transparency of information

method setting/determining prices

