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These 4 high-quality ASX stocks are soaring this month

The All Ordinaries (Index: ^AORD) (ASX: XAO) has had an exceptional month. It’s up just over 2% to take the index to a six-year high of 5,560 points, however some investors have done much better than that.

I’ve found four stocks that have rocketed higher over the last four weeks. Could there be further gains to come? These quality companies could certainly surge higher and drive massive shareholder returns over the next 12 months. Here are four top performers.

Iress Ltd (ASX: IRE) is up 18% over the last four weeks after it surprised investors with a bumper 48% lift in net profit following the major acquisition of a UK-based financial services company. The group now sources 48% of revenue from outside Australia and is expecting another 20% to 25% jump in full year profit in 2015. Iress has a sticky customer base and offers quality financial products to major institutions around the world.

Ramsay Health Care Limited (ASX: RHC) shares have improved by 12% over the same period following an exceptional 19% rise in full year profit on a 17.5% increase in revenue. It’s always encouraging to see net profit rising more than revenue as it implies a level of scalability in the business which acts to multiply the benefits of revenue growth. Renovations and acquisitions are expected to add another 14% to 16% to underlying earnings in FY15, which will no doubt continue to support the share price.

Sirtex Medical Limited (ASX: SRX) is quickly becoming another great Australian medical success story. The group has developed a liver cancer treatment that is proving effective where other treatments have failed. This is driving consistent growth in volumes and resulted in a 34% increase in revenue and 30% jump in net profit over the past year. Experts expect this growth to continue and for shareholder demand to remain strong.

Finally, Transfield Services Limited (ASX: TSE) has bounced an amazing 24% from low levels over the last month. Net profit rose an incredible 85%, while capital expenditure was slashed in order to help reduce the group’s large debt pile. There’s still a way to go but Transfield could be a winner if it successfully turns around its business.

Readers may have picked up that there's one common theme among the companies above. All are demonstrating growth beyond expectation. The Motley Fool has issued a firm "BUY" rating on this small but ultra promising ASX company that could be just as good. Click here for your free copy of "The Motley Fool's Top Stock for 2014."

Motley Fool contributor Andrew Mudie does not own shares in any companies mentioned. You can find Andrew on Twitter @andrewmudie

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