The Gateway to Algorithmic and Automated Trading

Racing Photons

Published in Automated Trader Magazine Issue 14 Q3 2009

With a flurry of major announcements around SIFMA, nobody could accuse NYSE Euronext of being inactive. Automated Trader caught up with Stanley Young, CEO, NYSE Technologies and Co-CIO, NYSE Euronext to discuss some of these announcements in more detail and in particular their implications for  auto/algo traders.

What percentage of volume does automated/algorithmic trading represent for NYSE Euronext?

We don't keep formal records, but for US markets we believe it is somewhere between 50 and 60%.

Have there been any noticeable changes in the ratio between message volume and consummated orders in the last twelve months?

I would say that over the last year it's been pretty stable. However, what we are seeing overall is a general reduction in the size of trades; participants ar

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