From Ticker Sense
We all know by now that the sudden 200 point drop in the Dow yesterday was due to a calculation delay caused by information overload by Dow Jones’ data systems. Below we calculate how the intraday price chart should have looked based on the actual price changes of the Dow’s 30 components. As the chart shows, the calculations began to go awry a little after 1:30 pm and continued until the computers finally caught up at 3:00 pm.
