Bullish option flow detected in Jumia Technologies with 4,532 calls trading, 1.1x expected, and implied vol increasing over 3 points to 111.00%. 5/31 weekly 6 calls and 5/31 weekly 7 calls are the most active options, with total volume in those strikes near 2,800 contracts. The Put/Call Ratio is 0.14. Earnings are expected on August 15th.