Understanding this indicator
Even when global equities rise together, some markets lead and others lag. An index of the common cycle can miss these changing relationships. Equity Market Structure looks at that second part of the picture: how the main differences between stock markets evolve after their shared movement has been separated out.
The indicator starts from the annual changes in major national and regional equity indices. Principal component analysis first identifies their strongest common movement, then extracts the next most important pattern, which captures differences within the group. The inputs are adjusted for trend and volatility so that the result reflects a relative pattern rather than a comparison of index point levels.
In the current model, the Shanghai Composite makes the largest contribution on one side, with India also contributing, while Korea and Japan make the largest contributions on the other. This makes the line a useful lens on a particular regional contrast. An upward move indicates a shift toward the first side of that statistical pattern; a downward move indicates a shift toward the second. It is not a direct spread between two national stock returns.
The key question is which markets are gaining relative strength, rather than whether all equities are rising. One side can outperform by falling less. Compare the structure line with the Global Equity Cycle and the individual markets to distinguish a change in worldwide equity conditions from a change in market leadership. This adds detail to the broader cycle without turning every relative move into a judgement about the whole economy.
The green line smooths the observed structure indicator to make its broad direction easier to follow. It does not impose the fixed cycle lengths used on the overall-cycle charts. Follow sustained changes and turning points alongside the underlying markets; the height of the line is a standardised reading, not a percentage return. Historical readings may change when the model is updated with new data.