News Summary

• The Korean and u.s. stock markets are increasingly moving lockstep, and Jim Cramer is starting to worry.
• A big reason is KOSPI's growing dependence on two AI chipmakers: SK Hynix and Samsung.
• Together, the mega-cap companies now account for roughly 50% of the index.
• Cramer said he "no longer feel[s] that you'll get out alive" if traders continue using borrowed money to chase AI stocks, but he's not giving up on the trade.