Mason Investment Advisory Services, Inc.

Mason Investment Advisory Services' $2.17B March 2026 portfolio is a textbook passive factor-tilt allocation — there is no active stock-selection thesis to summarize. Six ETFs account for 78.9% of the book: iShares MSCI USA Value (VLUE, $660M, 30.5%), American Century Small-Cap Value (AVUV, $313M, 14.5%), Vanguard International Small-Cap (VSS, $278M, 12.8%), American Century Small-Cap Value International (AVDV, $236M, 10.9%), American Century Small-Cap Value Core (AVSC, $223M, 10.3%), and T. Rowe Price Target Retirement ETF (TGRT, $221M, 10.2%). The Q/Q changes are rebalancing shuffles within the same ETF framework — TGRT increased by 4.2% in shares, AVUV trimmed slightly, VLUE and AVDV decreased fractionally, while the rest of the 13-ETF core was essentially flat. Single-stock exposure is negligible: Exxon Mobil ($2.8M), Chevron ($2.1M), Alphabet ($973K), Microsoft ($799K), Apple ($1.3M), and Arista Networks ($608K) together total less than $9M — a rounding error in a $2.17B book. This 13F documents a fiduciary-style diversified value-and-size allocation, not an active mandate. A reader seeking institutional conviction signals or smart-money angles would be better served by looking at a manager with actual stock positions, because this filing contains none.