Tom Lee, the long-standing Wall Street crypto bull, is sticking to his $15,000 year-end price prediction for Bitcoin (available on Coinbase) (BTC). The Fundstrat Global Advisor voiced his prediction on CNBC’s ‘Squawk Box’ yesterday.

Tom Lee and Bitcoin (available on Coinbase) (BTC)

Bitcoin (available on Coinbase) just recently fell to its lowest levels in more than a year yesterday, but Lee remains convinced. Originally, Lee cut his Bitcoin (available on Coinbase) year-end prediction by $10,000—from $25,000 to $15,000.

“Days like this, it does make me wonder,” said Lee to CNBC. “These past few days have definitely been a negative development.”

The Fundstrat advisor contends that more oversight from US regulators and institutional involvement could push the prices of BTC up. Lee told CNBC that the upcoming launch of Bakkt, the digital assets platform run by the New York Stock Exchange, could peak investor interest as it is set to launch at the end of January 2019. Often, digital currencies see a ‘boost’ during a run-up to a major product launch.