What type of trades are the Cyan and Yellow colored trades on Scottrade Time & Sales charts

Question

From Scottrade FAQ:

"What do the colors mean on Time & Sales?

• • • Green = trade occurred on the Ask.

• • • Red = trade occurred on the Bid.

• • • Cyan = trade did not occur on the Bid or Ask.

• • • Yellow = trade broke either high or low for the day."

Regarding Cyan, what kind of trade is it if it doesn't occur on the bid or ask? I see them often with up to 4 decimal places and sometimes in large volume. What kind of trades are these and what are they called?

The yellow trades, are they the ones that have a (T) beside them i see in after hours trading? What kind of trades are these and what are they called?

Answer 1

Actually their website should have detailed descriptions with examples, or try to call directly for info.