Historically regulators (such as the SEC and FSA in the UK) have had to look at the data after the fact to search for evidence of insider trading.
They are in the midst of adopting technologies that will allow them to monitor in real time, and potentially even stop the trades (though I'm not sure it would have help in this case). Apama is helping do this in the UK:
They are in the midst of adopting technologies that will allow them to monitor in real time, and potentially even stop the trades (though I'm not sure it would have help in this case). Apama is helping do this in the UK:
http://apama.typepad.com/my_weblog/2007/06/the_financial_s.h... http://www.progress.com/apama/index.ssp
Disclaimer: I used to work for these guys, but back in 2000 when the plan was to become a location-aware social web service (like loopt)