Some data:
http://www.cxoadvisory.com/technical-trading/how-much-can-high-frequency-traders-really-make/
Key finding:
# The upper bound of profit available to aggressive high-frequency trading with a 10-second holding period for a set of 6,279 U.S. stocks during 2008 is about $21 billion. Available profit declines sharply with holding period to just $21 million at 10 milliseconds (see the chart below).
# Across all holding periods, this upper profit bound corresponds to less than 0.05% of U.S. equities trading volume.
So, again, all of this noise over 0.05% of U.S. equities trading volume seems pretty excessive.
http://www.cxoadvisory.com/technical-trading/how-much-can-high-frequency-traders-really-make/
Key finding:
# The upper bound of profit available to aggressive high-frequency trading with a 10-second holding period for a set of 6,279 U.S. stocks during 2008 is about $21 billion. Available profit declines sharply with holding period to just $21 million at 10 milliseconds (see the chart below).
# Across all holding periods, this upper profit bound corresponds to less than 0.05% of U.S. equities trading volume.
So, again, all of this noise over 0.05% of U.S. equities trading volume seems pretty excessive.
