Guardian The Guardian book since March 13, 2025.
One portfolio, the author's own money, measured the way an allocator would measure it: time-weighted, net of trading costs, against the S&P 500 total return. Completed months are frozen and never restated; the current month is shown to date and updated after each close.
Growth of 100: the book against the S&P 500
Month-end values from March 2025, then Oct 2026 to date (dotted). 100 at inception is 212 in the book and 131 in the index as of Oct 23, 2026.
Every month since inception.
| Month | The book | S&P 500 TR | Excess | Book, growth of 100 | Index, growth of 100 |
|---|
The complete months as a file: monthly.csv. The file changes once a month; the row marked to date above it changes after each close.
Follow the book as it moves.
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