Why is this esignal chart incorrect

Discussion in 'Trading Software' started by Runningbear, Jul 20, 2005.

  1. I've attatched a daily chart of the ESTX the day of the the London bombings. The blue tail area on the 7.7.05 means that esignal have corrected the data to show that the red area represensents the correct daily range - and the blue are is incorrect.

    Now the hourly chart for the 7.7.05 still displays the total trading range for the session as the red and blue area combined - which is correct. The trading range was a hell of a lot more than 20 points for the day.

    The hourly chart is correct and the daily chart is incorrect. My question is why?

    Surely if a correction to data is made they would make it for daily as well as intra-day data. And given the significance of the event, surely they would get it correct for both sessions.

    So esignal, what's the deal?

    Did the 120 point sell off I witnessed never actually happen?

  2. This is the 60 minute chart the day of the attacks.
  3. Hmm...

    looks like some piss-poor heavy duty filtering on the Daily data - regardless of its correlation to intraday price action (i.e., no solitary outlier spike). Can't wait to hear the lame-arse explanation from eSignal...