Vanguard Group Inc., the world's second-largest ETF issuer, is making what it says is its biggest fee cuts in the company's 50-year history, trimming the expense ratios of dozens of mutual fund and ETF share classes that it claims will save investors more than $350 million in 2025.

Vanguard announced fee reductions for 168 mutual fund and exchange-traded share classes across 87 funds. The move will save investors roughly $350 million this year. The asset manager’s wide fee cut comes less than a month after Vanguard agreed to pay more than $100 million to the Securities and Exchange Commission over alleged violations involving its target date retirement funds.