Uber's stock has shown significant growth and resilience, particularly with a 291% increase after a previous 68% drop. The expansion into delivery services and the use of AI-driven routing for efficiency are key factors in its operational success. Despite a recent surge in price, the stock is still considered undervalued, indicating potential for further growth. The psychological resistance level at $80 has been surpassed, closing at $81.30, which suggests a positive outlook for the stock.