Michael Mahoney

Manager relies on quantitative tools to filter out noise.

Michael Ryval 29 February, 2008 | 2:00PM
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"We use a lot of quantitative tools to filter out the noise, as there are over 7,000 stocks in the global equity universe," says Mahoney, 41, managing director at Toronto-based Picton Mahoney Asset Management. "We can't look at them all in detail. The 'quant' tools highlight the stocks that are attractive."

The screens also help determine when to buy or sell. "It can be very difficult to sell when things turn for the worse," says Mahoney. "So the tools tell you that 'margins are deteriorating, earnings growth is slowing, or they've missed their estimates. The company is not so attractive anymore.' The quant tools impose a discipline in the process."

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Michael Ryval

Michael Ryval