SK Hynix Up, Kuaishou Plunges, Sino Biopharmaceutical Up

Today's biggest winners and losers in the stock market.
On this episode of Stock Movers:
- After SK Hynix unveiled its own program to buy back 40 trillion won ($29 billion) of stock, JPMorgan Chase & Co. said the company may follow that up with additional returns worth at least $130 billion. SK Hynix rose as much as 14.7%.
- Kuaishou Tech shares drop as much as 12% in Hong Kong after the Chinese Internet firm gave weak guidance for the coming quarter that triggered a wave of analyst downgrades over concerns around weak macro conditions and policy tightening on online-streaming e-commerce.
- Sino Biopharmaceutical and Asian healthcare firms are rising on the back of a skin cancer vaccine trial breakthrough by Moderna and Merck.

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