Stock Markets: Investment Sentiment
This is a contrarian strategy, based on our library of
some 400 indicators around the world. These analyse which
types of investor are successful, and which types are not,
in order to see what predictive value that may have a year
into the future. These individual indicators are combined
into a composite indicator for each market designed to
predict market levels a year later. That is to say at
any point in the past, the index shows at what level the
market actually stood, while the indicator shows where it
was expected to be a year earlier.
The stock market index is shown as the thick white line on
the right hand axis. The explanatory variable, the composite
Sentiment Indicator, shown as the thin yellow line, uses the
left hand axis. The Sentiment Indicator is advanced 12
months to show our Best Guess of what is most likely to
happen a year ahead, assuming the respective types of
investor are as successful, or unsuccessful as they were
over the previous decade. Thus the indicator level at the
same date as the market index shows what the indicator had
predicted a year ago. Both series are rebased so that
December 1994 = 100.
Buy & sell signals, that rely solely on data already
published, are represented by red arrows embedded in the
price index. These Buy & Sell signals indicate changes in
the forecast direction of share prices a year into the
future.
A large range of different indicators of investment
sentiment have been tested to see which have meaningful
predictive power looking a year ahead. Depending on what is
available in different countries, these may include surveys
of institutional or retail investors, mutual fund sales,
discounts to net asset value for closed-ended funds or
regulatory reports about trading activity by different
classes of investors in stock or futures markets. Smaller
countries may also be heavily influenced by large powerful
neighbours.
No single indicator can be relied upon with a high degree of
certainly, for otherwise excessive popularity would lead to
lower returns. However our research shows that an
exponential improvement in the odds of success can be
generated by combining multiple indicators that reflect the
behaviour of different investors. Up to 32 individual
indicators may be used for each composite indicator.
This strategy was highly effective in practice until the
2008 financial crisis, when many normally-successful types
of investor because forced sellers.