Don and Tom take on one of investors’ biggest blind spots: focusing on tiny costs while ignoring the factors that have a far greater impact on long-term wealth. Using a recent Jason Zweig article as a springboard, they explain how taxes can reduce stock market returns far more than the difference between low-cost fund expense ratios. The discussion covers tax-efficient investing, asset location, ETFs versus mutual funds, dividend taxation, capital gains, and why investors should pay more attention to portfolio design than chasing the lowest possible expense ratio. They also dissect a highly tax-inefficient YieldMax fund tied to MicroStrategy and Bitcoin, illustrating how taxes and poor fund structure can devastate returns. Listener questions cover Morningstar’s acquisition of CRSP indexes and whether it threatens Vanguard investors, plus whether a retiree working part-time can contribute earned income to a Roth IRA.

0:05 Big-picture investing versus obsessing over tiny details
0:39 Why fund expense ratios matter less than most investors think
2:06 Jason Zweig’s research on taxes reducing long-term market returns
3:20 How taxes often outweigh fund expense differences
4:06 Qualified dividends versus ordinary income taxation
5:03 Why investors should pay attention to after-tax returns
5:40 YieldMax funds and the hidden cost of tax inefficiency
7:19 The dangers of exotic income-focused ETFs
7:48 Why ETFs can be more tax-efficient than mutual funds
9:15 Tax knowledge as a critical investing skill
10:30 Asset location: where stocks and bonds belong
11:20 The YieldMax MicroStrategy fund and Bitcoin losses
11:58 The truly important parts of financial planning
13:15 Listener question from Longmont, Colorado
14:17 Morningstar, CRSP indexes, and Vanguard concerns
16:00 Why market-cap indexes are unlikely to be manipulated
17:16 Morningstar ratings and conflicts of interest discussion
17:58 Thoughts on the military-industrial complex
19:23 UFL football, soccer, and sports tangents
20:47 Listener question about Roth IRA contributions from part-time work
21:30 Filing thresholds and earned income requirements for Roth IRAs
23:21 Listener questions, voice submissions, and website tools
24:08 AI voices and synthetic Don McDonald
25:59 Romper Room memories and closing banter

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