While the meme stocks have been getting most of the headlines lately, Roblox (RBLX) continues to have very active options. One day last week, around 140,000 options traded, with 70% of the activity on the call side. That tends to be a bullish signal. Several of the larger trades looked to be bullish as well, with out-the-money call buying and at-the-money put spread selling in July options. RBLX is a $50 billion video game company that recently had its IPO and has been popular among investors.