Raven, Probably the spread.
The issue with the market is this - there are two prices, a bid and an ask.
The bid is the price which floor traders buy (low), and the ask is the price at which they sell (high).
You however, buy at the ask (high), and sell at the bid (low).
There is a spread there, and that is how they make their money.
Google, and everything else, list the quotes at the bid - but remember, you pay the ask.
So in this case, the bid (the price at which you sell, they buy) is 11 cents, the ask (where they sell, and you buy) is 13 cents.
In larger stocks, you won't notice this because the spread is still 2 cents or at least something much smaller in percentage terms than 11 - 13 
Just like our little IC market, except here, we get to be the floor traders, not the second-handers who have to beat a spread as well.