The CRNA Crystal Ball Test: What a "Perfect" 403(b) Fund Pick Is Really Worth

Retirement charts inside a 403(b) can eat hours of attention. Five-year returns, ten-year returns, expense ratios, lined up side by side and compared fund by fund.Brett Fellows, CFP®, runs the numbers on what a decade of picking the single best-performing fund would add to a CRNA's account. He also shows where a bigger opportunity sits, in an oversized cash cushion earning next to nothing.Brett covers:What a decade of picking the single best-performing fund in a 403(b) lineup would add to a CRNA's account, in dollarsWhy that number translates to about $30 a month in retirement income once it's run through a conservative withdrawal rateWhy an oversized cash cushion builds up so easily on PRN and locum incomeHow redirecting unused cash into a 403(b) and backdoor Roth IRA over eighteen years can grow to roughly $180,000The 2026 contribution limits for a 403(b) and backdoor Roth IRA, and how much space typically goes unusedA bank statement exercise for finding a real emergency fund number this weekKey Timestamps:(0:18) The pull to find the "perfect" fund in your 403(b)(1:04) Running the crystal ball test on a decade of fund picks(3:10) The stable value fund vs. bond fund gap in a real 403(b)(4:09) The real number: under $9,000 difference over ten years(5:00) Turning $9,000 into actual monthly retirement income(6:27) Where fund selection still genuinely matters(7:46) The high-stakes decision most CRNAs get backwards(9:26) Why unused 403(b) and Roth IRA space is use-it-or-lose-it(10:07) 2026 contribution limits for a 403(b) and backdoor Roth IRA(12:33) Sarah's example: redirecting $450 a month into retirement(13:32) $450 a month grows to roughly $180,000 by 60(15:44) Pressure-testing the number with a more conservative return(17:27) The same math at a smaller dollar amount(20:35) The bank statement exercise to run this week(24:17) The bigger lesson: where to spend your decision-making energy(26:51) Closing thoughts and how to work with BrettFor more information and resources related to this episode, please visit the show notes.