A blockbuster US$28.6 billion SK Hynix share buyback sends the chipmaker higher - but what does it tell investors about confidence in the AI memory boom?

On Market View, Michelle Martin examines why Chinese government bonds are emerging as an unlikely haven amid a global bond sell-off, and how the US-Iran conflict and disruption around the Strait of Hormuz are feeding into inflation and interest-rate risks.

She also looks at US Treasury Secretary Scott Bessent's decision to double long-dated Treasury buybacks after the 30-year yield touched a 19-year high, and asks what the intervention tells us about stresses in the world's most important bond market.

Plus, Moderna and Merck's personalised mRNA melanoma treatment delivers a landmark late-stage result, sending Moderna shares soaring and reviving the investment case for mRNA technology beyond Covid vaccines.