Known unknowns, and unknown unknowns

Ahead of the Second Gulf War, Secretary of Defense Donald Rumsfeld famously referred to “known knowns”, “known unknowns” and “unknown unknowns” when responding to a question about Iraqi weapons of mass destruction.   Fast forward to 2025, investors have to contend with a series of known unknowns and unknown unknowns as they consider their investment...

Torturing the data until it talks

Mid-week market update: Market internals are showing signs of a wash-out. Readings are normalizing after an extreme oversold condition against a backdrop of extreme fear. Stock prices should advance from here.   However, the S&P 500 just experienced a "death cross", where the 50 dma falls below the 200 dma. Notwithstanding today's negative surprises from...

Estimating downside risk

Preface: Explaining our market timing models We maintain several market timing models, each with differing time horizons. The "Ultimate Market Timing Model" is a long-term market timing model based on the research outlined in our post, Building the ultimate market timing model. This model tends to generate only a handful of signals each decade.   The Trend...

A game theory analysis of the trade war

Bloomberg’s U.S. chief economist Anna Wong published a chart outlining the impact of Trump’s tariff pivot. Trump raised tariffs on China and cut the “reciprocal tariff rate” to 10% for all others, except USMCA members Canada and Mexico, for 90 days. The resulting weighted tariff rate is not substantially different from the “Liberation Day” rates...