Tesla (TSLA) stock is charging higher, rising over 29% in just a month. The rally comes at a time when the electric vehicle giant is under increasing scrutiny due to lower deliveries, mounting pressure from rising competition, and a shrinking share of the U.S. market. Despite these concerns, a string of positive developments has reignited investor enthusiasm and pushed Tesla stock higher. Musk’s Billion-Dollar Signal Much of the renewed confidence in Tesla stock can be traced back to CEO Elon Musk himsel ...