Don't know what to make of this - a different character set perhaps - fiddling about with Internet Explorer encoding didn't reveal anything. Trying an auto translate failed to produce anything too. There are several non-printable ascii codes in the data but having looked at the data with a hex file viewer there is nothing that indicates if the data is a particular file type.
An index chart looks much like a stock chart in that levels seem to be present. Presumably many stocks display levels occuring at similar times.
The chart is YUM on 30/09/2011. In the vicinity of either arrow, ignoring the chart to the right of either arrow, some would think a reversal is possibly starting and try a long trade, but others would see a retracement of the downward trend and try a short trade. Its clear which trade would have worked out eventually, at least for a brief period, but which way are people biased to think - reverse trade or continuation?
A person that missed the first move might think that this will be a second chance to get in if they want to go long.