Company expects benchmark outperformance to continue in fourth quarter.Discretionary investment manager Tam Asset Management has outperformed benchmarks for all four of its Tam Focus model portfolios in the year so far. Each of the four model portfolios outpaced their respective benchmarks by at least 7.7 per cent, with the best comparative performance coming from the ‘growth’ portfolio which grew 15.4 per cent compared to a benchmark of 6.1 per cent.