What it is:
How it works (Example):
The AMEX tends to list riskier stocks issued by smaller companies that are starting up or are trying to grow. By comparing volume on the AMEX versus that on the NYSE (which tends to list larger, well-established companies), the speculation index can provide insight into how much risk investors are taking on. In this respect, higher ratios are associated with higher levels of speculation, whereas lower ratios generally indicate that investors wish to stay with lower-risk investments.