Obsessively Stitching: I-Spy Ticker Tape Quilt... the Girly Version!
This is the SPY ticker for Feb, 29, 2012. The image shows the Nasdaq prices delayed when compared to those of other exchanges. When trades like this happen after the market closes, they are market as Form-T so those of us can see in real-time what orders were excuted when the market closed. Most of those Nasdaq trades on the chart shown were not labelled Form-Twhich exposes the weakness in the system at the millisecond level to accurately disseminate closing trade information
I-Spy Ticker Tape by Fresh Lemons : Faith, via Flickr