Don takes listeners on a journey through nearly four decades of investment advice, explaining how his thinking evolved from recommending active mutual funds in the 1980s to embracing index funds, factor investing, and eventually ETFs. Along the way, he and Tom discuss Vanguard’s rise, Don’s early relationship with Paul Merriman, the emergence of Dimensional Fund Advisors and Avantis, and why their recommendations have changed over time. They also address listener skepticism about fund recommendations, compare Avantis and Vanguard products, answer a tax-efficient portfolio rebalancing question from a retired couple, and debunk a marketing pitch for “layered income portfolios.”

0:08 Don shares the story of his early days giving investment advice from Leadville, Colorado
2:56 The active management era and why great fund managers were once considered essential
3:52 Vanguard’s early growth and the gradual acceptance of index investing
5:38 Don discusses Vanguard sponsoring his radio show and maintaining disclosure transparency
6:55 Paul Merriman introduces factor investing and Fama-French research
9:10 Early Dimensional Fund Advisors portfolios and advisor-only access
10:56 The rise of ETFs, Dimensional’s hesitation, and Avantis’ origins
11:23 The 2010 ETF flash crash and why Tom and Don were initially cautious
13:29 Why factor investing remains compelling despite uncertain future returns
14:20 Addressing listener skepticism about Avantis recommendations
16:07 Comparing AVUV and Vanguard VBR small-cap value funds
17:44 Comparing AVGE and Vanguard VT global equity funds
19:15 Clarifying compensation, conflicts of interest, and transparency
21:27 Listener Anton asks about tax-efficient portfolio rebalancing in retirement
26:03 Why holding bonds inside IRAs can improve tax efficiency
27:23 Discussion of Roth conversion strategies and tax considerations
30:20 Listener asks about “Layered Income Portfolios”
31:05 Why income portfolio marketing pitches are often more sales than substance

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