The phrase "are expected to outperform" is correct and usable in written English.
It can be used when discussing predictions or forecasts regarding performance, typically in a competitive context.
Example: "Analysts believe that the new product line are expected to outperform its competitors in the market."
Alternatives: "are anticipated to exceed" or "are projected to surpass".
While jewelry sales are expected to outperform the overall luxury market, with growth of 13 percent this year, according to Bain, online competition is growing, too.
Retailers in London's West End are expected to outperform the national picture as the devaluation of sterling since the Brexit vote draws high spending tourists to its high end department stores and luxury brands.
Industry analysts IDC have predicted that holiday purchasing at the end of 2013 will drive tablet sales above PCs for the first time ever, although PC sales are expected to outperform tablets on an annual basis until 2015.
Structured packings operated in two-phase flow are expected to outperform randomly packed beds, but heat transfer data on structured packings is scarce.
Due to their robustness and flexibility of modeling algorithms, neuro-computational models are expected to outperform traditional statistical techniques such as regression and ARIMA in forecasting stock exchanges' price movements.
Yes, more registered Democrats than Republicans have returned ballots so far, but this is a state where Democrats are expected to outperform Republicans.
Noble is expected to outperform due to jackup dayrates that are starting to exceed expectations, according to Banc of America.
The prom gown business is doing so well in the recession that it's expected to outperform last year.
Chrysler is expected to outperform the industry in April vehicle sales, which are scheduled to be reported next week.
The sector is expected to outperform other industries more commonly associated with innovation, such as software solutions, mobile communications and video gaming.
He pointed to broadly positive ratings from Merrill Lynch, UBS and Cazenove, which said the insurer was trading at a significant discount to rivals and could be expected to outperform the sector.
