Several information technology stocks have been "unfairly" hammered by investors in the recent sell-off in the U.S., but those companies are key to lifting overall sentiment on Wall Street in 2019, according to online brokerage TD Ameritrade Asia.

"I think tech is going to drive the overall sentiment higher," Christopher Brankin, CEO of TD Ameritrade Asia, told CNBC's "Squawk Box" on Thursday.

"Basically all stocks over the last quarter, especially December, have been absolutely hammered and I think some of them unfairly. We've seen some of these stocks across the FAANG, some of the semiconductors, they're down ... just in the month of December," he added.

FAANG refers to stocks of Silicon Valley tech giants Facebook, Amazon, Apple, Netflix and Google-parent Alphabet.