Today's biggest gainers and decliners in the stock market. 

On this episode of Stock Movers:

- Shopify (SHOP) shares are trading higher in trading today, extending Monday’s gains after Chief Executive Officer Tobi Lutke announced on the social media platform X that the e-commerce firm was “partnering deeply” with Meta Platforms’ Muse artificial intelligence agent.

- Morderna (MRNA) shares are also extending gains for a second day, to hit its highest intraday level since 2023. The biotech previously reported on Monday that it will present data on its personalized cancer vaccine in October. 

- On (ONON) expects sales growth in the high teens over the next few years as the Swiss sneaker brand moves into sports including golf and football to take on the likes of Adidas and Nike. Backed by tennis legend Roger Federer, On has grown rapidly since its 2010 founding, starting with running shoes and expanding into tennis, training and outdoor sports. A 10-year partnership with French superstar Kylian Mbappé breaks new ground for On in football, long dominated by its bigger rivals. The stock rallied as much as 14% in New York, the most intraday since November.