Most share prices are volatile year to year with lots of ups and downs. However, there are some shares that have kept growing over the last few years.
Businesses that keep performing year after year are worth considering for your portfolio. Over the long-term, it's the businesses that can compound returns that will generate the most wealth.
Here are three shares that could keep beating the market:
Altium Limited (ASX: ALU)
Altium is one of the world's leading electronic PCB software providers for engineers to design the products of the future like cars and computers.
Its share price has grown by 133% over the last two years and it could keep going as management are predicting that revenue could double by 2020.
Altium has been a star performer and it keeps making smart acquisitions to bolster its offering to clients.
It's currently trading at 23x FY19's estimated earnings with an unfranked dividend yield of 2.3%.
Rural Funds Group (ASX: RFF)
Rural Funds is one of the fastest-growing real estate investment trusts. It purely invests in agricultural property and leases it to tenants.
The share price has grown by 101% over the past two years and it could keep going as it makes more farm acquisitions.
Many income stocks are facing difficulties at the moment, but farmland has been useful for hundreds of years and I expect it will keep being useful for many more years.
Rural Funds is trading with a distribution yield of 4.37%.
Costa Group Holdings Ltd (ASX: CGC)
Costa is a large fresh food grower of citrus fruit, berries, mushrooms, tomatoes and avocadoes.
Fresh food will always be valuable and Costa has a plan to increase its total output in Australia, Africa and Asia, making it a global produce company with plans for more expansion.
The share price has grown by 153% over the last two years and could keep growing nicely.
Costa is trading at 30x FY17's earnings with a fully franked dividend yield of 2.06%.
Foolish takeaway
None of the above shares are trading cheaply thanks to the big share price increases. At the current prices, I think Altium is most likely to beat the market over the next few years.