Today's biggest winners and losers in the stock market, a look at the notable movers:
On this episode of Stock Movers:

- SpaceX (SPCX) shares jumped in their second day of trading, adding to gains following a blockbuster debut that instantly vaulted it into the ranks of the world’s most valuable public companies.The stock climbed as much as 16%, extending Friday’s 19% rally, to add almost $340 billion in market value. The move boosts the company’s market value to more than $2.4 trillion, putting it among the top six largest companies in the world. At its current market capitalization, it’s less than $220 billion away from overtaking Amazon.com Inc., which boasts a nearly $2.7 trillion value.

- Adaptive Biotechnologies (ADPT) shares slide 6.2% postmarket after the life science equipment company said it plans to offer $250 million convertible senior notes. It also announced its intention to pursue a separation of its Minimal Residual Disease and Immune Medicine businesses.

- Dave & Buster's Entertainment (PLAY) reported a lower profit and falling revenue in the first quarter, dragged down by a continued slide in comparable store sales. The Dallas-based company on Monday said its comparable store sales fell 5.4% during the quarter, steeper than the 1.2% decline expected by analysts polled by FactSet.