Nio stock has experienced fluctuations, with some reports indicating a jump and others a slide, amidst record deliveries in 2026. The company's new models, including the Onvo and ES9, have had a strong start, with the Onvo L80 being part of Nio's plan for mass EV growth. The outlook on Nio's stock is uncertain, with some investors appearing bullish on its growth prospects while others weigh the company's overseas expansion.