Japanese stocks in bear market as banks slump on tariff jitters

Nikkei plunged 9% this week, entering bear market territory amid U.S. tariff fears.

Banking stocks led the rout, with the banking index down 20%—its worst weekly fall ever.

Strong yen and BOJ rate uncertainty added pressure on equities and financials.

Experts warn of further downside, with Nikkei possibly dipping to 32,000 this month.