Quote from rufus_4000:
My system trades often (would almost classified as high-freq), betwen 30-80
trades a day, for the pairs strategy. I use tick by tick data, in an universe of
around 500-600 equities (including international equities), updating a
custom in-memory pairs table / database. I don't compute Sharpe
ratios often, last time I computed (mid-june), using weekly data
(normalized to annual), it is 0.62 (nothing to write home about).
Then again, it is not a classic pairs long / short system, it is more of statistical
arb strategy ... so I am not sure if it answers your question.