President Trump's proposed tax reforms may incentivize U.S. multinational companies to bring cash back to the U.S., potentially setting off a frenzy of mergers and share buybacks. However, it may also increasespending on some of the biggest trends in technology.

Cloud computing is one such area where companies are likely to increase spending over the next several years, as companies look to reduce operating costs and increase flexibility. Research firm IDC recently noted that worldwide spending on the public cloud -- the areas where the largest tech conglomerates mostly reside -- is expected to reach $122.5 billion this year, an increase of nearly 25% over 2016 spending levels.

By 2020, IDC expects that spending to reach $203.4 billion worldwide, indicating there is much more room to run as companies shift their computing habits, leaving opportunities for investors.

"Some offorecasts we've seen -- for example, Goldman -- shows cloud spending from 2016 to 2020 will quadruple," said Exencial Wealth Advisors senior analyst Rich Erwin, who helps handle$1.6 billion in assets under management. "Last year, overall spending was around $32 billion and maybe $135 billion or so is devoted to the public cloud, which is the real growth vehicle."

That growth is expected to largely be captured by the largest companies, giving an opportunity to investors to concentrate their bets and generate outsized returns if it comes to fruition.

"I've seen numbers that in roughly tenyears, Microsoft will have between 25% and 30% of its revenue and operating income from cloud services business," Erwin added. "It's a $3 billion business now, but it has the potential to be really big. It's the biggest trend in technology now and will be for the next decade."

What follows below is a Q&A with Erwin about where investors should look for cloud computing stocks to buy.It has been lightly edited for brevity and clarity.

TheStreet: How much money can we expect to come back from overseas if we get a repatriation holiday?

Erwin: At Exencial, we're expecting about $200 billion to come back in the first year of the holiday. Much of that is in companies like Apple (AAPL) , Cisco (CSCO) , Alphabet (GOOG) (GOOGL) and Microsoft (MSFT) .

TheStreet: Where does that money go?

Erwin: The money will likely go to stock buybacks and M&A deals -- we think the majority of that cash will be targeted for those activities.

TheStreet: Then what makes you bullish on some of these companies that are tied to cloud computing?

Erwin: Alphabet, or Google, has around $26 billion in free cash flow and they spend $14 billion in research and development spending, so they're not really dependent upon the money coming back -- they're already highly profitable.

TheStreet: What do you like about each of these companies?

The rest is here:

5 Cloud Computing Stocks to Buy - TheStreet.com