The company in August announced the $5.1 billion purchase of Costa, an international coffee chain with more than 3,800 locations worldwide. The deal is likely to close in the first half of 2019 and will allow Coke to compete in both the hot and cold drink spaces, though it's unlikely Costa spots will open in the U.S. anytime soon.
With six deals behind it in 2018, Coke CEO James Quincy told CNBC earlier this week that investors shouldn't expect the same pace to continue in the year ahead.
"We've got to absorb the ones we've invested in in 2018 but experience will tell you that they just don't come up at that sort of rhythm," he told CNBC's Sara Eisen on "Squawk on the Street."
UBS said the changes Coke underwent this year will pose challenges.
"We see modest risk that any one of moving parts could allow management to back away from long-held global growth targets. Valuation is back above its historical premium to the group which we believe reflects [improving] operating metrics following refranchising as well as the start of a defensive rotation," the analysts said.
Coca-Cola's stock has been a strong performer this year, rising 7.3 percent through Wednesday, easily outperforming the S&P 500, which is off 0.8 percent, and the consumer staples sector, which has fallen 4.2 percent. Its average target price among analysts is $51.63, according to FactSet.