Some of the dangers of appointment only trading. Take a look at MMLP..Martin Midstream. Very small float. As of this time only 1 trade of 250 shares has occured all day. Thankfully i'm not selling here but its the kind of thing on a slow summer thursday where a 500 share sale could take the stock down a buck...or visa versa!

Sunoco Logistics...somebody did exactly that in the last 30 minutes where a wave of light selling in 100-1000 share blocks takes the stock down nearly 1 point...and then right back to nearly flat in a span of 20 minutes.

One of those days today..no news.

Some interesting reading on Freakonomics and Econobrowser. Worth a check

Somebody start a rumor please!