The Problems of Narrow Leadership

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 Asset Allocation Model is an asset allocation model that applies trend-following principles based on the inputs of global stock and commodity prices. This model has a shorter time horizon and tends to turn over about 4-6 times a year. The performance and full details of a model portfolio based on the out-of-sample signals of the Trend Model can be found here.

   

My inner trader uses a trading model, which is a blend of price momentum (is the Trend Model becoming more bullish, or bearish?) and overbought/oversold extremes (don't buy if the trend is overbought, and vice versa). Subscribers receive real-time alerts of model changes, and a hypothetical trading record of the email alerts is updated weekly here. The hypothetical trading record of the trading model of the real-time alerts that began in March 2016 is shown below.

  

 

The latest signals of each model are as follows:

• Ultimate market timing model: Buy equities (Last changed from “sell” on 28-Jul-2023)*
• Trend Model signal: Bullish (Last changed from “bearish” on 27-Jun-2025)*
• Trading model: Neutral (Last changed from “bullish” on 31-Jul-2025)*

* The performance chart and model readings have been delayed by a week out of respect to our paying subscribers.

Update schedule: I generally update model readings on my site on weekends. I am also on X/Twitter at @humblestudent and on BlueSky at @humblestudent.bsky.social. Subscribers receive real-time alerts of trading model changes, and a hypothetical trading record of those email alerts is shown here.

Subscribers can access the latest signal in real time here.

 

The Loneliness of Technology Leaders

I’ve been raising concerns about the narrowness of market leadership for the past few weeks. The accompanying RRG chart shows the problem.

I use RRG charts to tell the story. Relative Rotation Graphs, or RRG charts, are a way of depicting the changes in leadership in different groups, such as sectors, countries or regions, or market factors. The charts are organized into four quadrants. The typical group rotation pattern occurs in a clockwise fashion. Leading groups (top right) deteriorate to weakening groups (bottom right), which then rotate to lagging groups (bottom left), which change to improving groups (top left), and finally complete the cycle by improving to leading groups (top right) again.

The RRG chart of U.S. sector returns shows the technical underpinnings of the latest bout of market strength. There are only two sectors in the top half, indicating either leadership or emerging leadership. Technology is the only sector in the leading quadrant. While consumer discretionary stocks are in the improving quadrant, in light of the clockwise rotation shown by sectors, it’s unlikely to move into the leading quadrant if its current rotation pattern holds. All other sectors are in the bottom half, indicating laggings status.

 

The full post can be found here.

 

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