Markets & Economy Are You Ahead or Behind the Average 401(k) Balance for 40-Year-Olds? September 8, 2026 · 4:20 pm 2 sources Image: Yahoo Finance ad slot · in-content video 16:9 Coverage More coverage401(k) savers are setting records. How to catch up if you're behind.Yahoo Finance · September 8, 2026 16:20Are You Ahead or Behind the Average 401(k) Balance for 40-Year-Olds?Yahoo Finance · September 9, 2026 16:20