I've noticed something funny about the way bitcoin.clarkmoody.com colors the candles... it seems that the candle is colored not based on whether the open is greater or less than the close, but whether the close is greater or less than the previous close. Typically the open of one period will be close to the close of the previous period, but it can be different. There's an example of a strangely colored candle now: the 2013-5-22 22:15:00 (Chicago time, if it matters) candle for the M15 view is colored red even though the open is 124.40000 and the close is 124.40002. (The previous close is 124.43900.) Is this intentional behavior? It seems counterintuitive.