Index funds are often presented as the simple, neutral way to invest: buy the market, keep costs low, and stay diversified. But every index has rules, and those rules determine what investors actually own.

With several massive private companies potentially entering public markets, those rules are becoming more important than ever. In this episode, we're looking at what happens when "passive investing" still depends on very active decisions behind the scenes.

Topics discussed:

• Why the SpaceX IPO is reshaping how indexes handle mega-cap companies.
• How index funds are forced to buy new additions regardless of valuation.
• Why "buying the index" still involves active decisions made behind the scenes.
• How style drift leaves investors owning more risk than they realize.
• Why concentration in mega-cap stocks undermines the diversification you think you have.

Resources mentioned:

• ERdocadvisor.com