Global Market Today: Asian shares slip as oil jumps on Gulf attacks

Asian shares slipped as oil prices surged about 3% following attacks on Gulf shipping routes, with Brent crude climbing to $78.50 a barrel. The dollar strengthened and 10-year Treasury yields rose 2 basis points to 4.59% as investors priced in higher chances of a Federal Reserve rate hike ahead of Chair Kevin Warsh's Congressional testimony. Meanwhile, South Korean markets extended last week's losses amid concerns over leveraged bets in semiconductor stocks, while SK Hynix's US-listed shares jumped nearly 14% on their Nasdaq debut.