Last week I started to populate the Dirac Portfolio so as to manage it using my new Momentum/Trend and integrated Mean Reversion model/system. The objective is to see if it might be possible to beat the broader US Equity Market (S&P 500 or similar Index/Fund) by rotating between sectors that comprise this broader market.
Darwin 2026 Portfolio Review: 16 January 2026
Over the past week, US Equity markets continued to consolidate in a narrow range around the ~6950 level in the SPX (S&P 500 Index), closing ~0.3% lower than last week’s close despite hitting new all-time highs on Tuesday and trading above average volumes: Compared to other major asset classes this was the weakest performance of […]
Dirac 2026 Portfolio Review: 13 January 2026
The goal of the Dirac Portfolio is to see if we might be able to beat the performance of the broad S&P 500 Index (as represented by the SPY ETF) by actively rotating between the sectors that make up that index. I started to build this portfolio last week with the objective of trying to […]
Darwin 2026 Portfolio Review: 9 January 2026
Santa has left town, with US Equities, as represented by the SPX (S&P 500 Index), at all time highs:
Dirac 2026: 5 January 2026
I have reset the Dirac Portfolio to an $80,000 account and made a minor adjustment to the asset list (“quiver”) in order to limit the number of assets in the quiver to a maximum of 10 for ease of management. I have also decided to move this portfolio to the new algorithm that I have […]
Darwin 2026: 2 January 2026
I have reset the Darwin Portfolio to a $100,000 investment portfolio with small changes to the asset list (“quiver”) and the introduction of a new algorithm for trading in 2026. This post outlines these changes and my plans for managing this portfolio going forward. Background I have now been developing/building systems for investment and trading […]
Darwin Portfolio Review: 26 December 2025
As we head into the last few days of 2025, Santa’s Rally has taken us to new highs in the SPX (S&P 500 Index) with the Index closing the week 1.4% above last week’s Close:
Darwin Portfolio Review: 19 December 2025
It looked like being a down week in the US equity markets until a late surge on Friday lifted the SPX (S&P 500 Index) back into the 6700-6900 range where it has been consolidating for a few weeks:
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