Roger Wittlin Investment Advisory, LLC

Key Holdings

The portfolio is characterized by heavy concentration in core "total market" and large-cap US equity ETFs. The top five positions alone command 59.82% of the total portfolio value.

• VTI (Vanguard Total Stock Market ETF): This is the largest holding at $30.17 million (21.10%). It provides exposure to the entire US equity market, including small-, mid-, and large-cap growth and value stocks.
• IVV (iShares Core S&P 500 ETF): The second-largest position at $19.56 million (13.68%), offering concentrated exposure to the 500 largest US companies.
• ITOT (iShares Core S&P Total U.S. Stock Market ETF): Holding $14.01 million (9.79%), this position overlaps significantly with VTI, further reinforcing a broad US equity tilt.
• SCHB (Schwab U.S. Broad Market ETF): At $13.07 million (9.14%), this is the fourth major core US equity holding, demonstrating a preference for low-cost broad market diversification across different fund providers.