Bullish option flow detected in UP Fintech (TIGR) Holding Ltd with 20,373 calls trading, 1.8x expected, and implied vol increasing over 3 points to 64.96%. 3/28 weekly 9 calls and 4/4 weekly 10 calls are the most active options, with total volume in those strikes near 7,000 contracts. The Put/Call Ratio is 0.09. Earnings are expected on June 5th.