Opendoor Technologies (OPEN) shares surged as much as 24% Tuesday before reversing early gains, as retail investors drove wild swings in the meme stock.

Shares of the online homebuying company were recently down about 1%, after a temporary halt in trading. They nearly tripled in value last week and closed up 42% Monday amid intense social media interest from retail investors.

As in recent days, Opendoor’s stock was heavily cited by users of the wallstreetbets subreddit—notorious for fueling the Gamestop meme stock frenzy in 2021. It was also listed as the most actively traded stock on retail-investor-focused social media platform Stocktwits on Tuesday morning.

Opendoor's stock took off last Monday after EMJ Capital Founder Eric Jackson said his firm had invested in the company, saying shares “could be a 100-bagger over the next few years"—implying that every $1 invested in the stock could return $100.

Opendoor had faced a potential Nasdaq delisting in May for trading below $1 for 30 consecutive business days.

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