Spectrum European Retail Investor Index (SERIX®)
Tools to help you go further.
The SERIX® is a pan-European client sentiment that informs as to whether retail investors have speculated on a rising or falling market. Use the SERIX® to compare how the client sentiment has changed (in terms of directionality or strength of sentiment) over time on a monthly basis.
- A transparent view of investor speculation based on real retail investors trades
- Insight into month-on-month trends at a glance
- A comparison for your market assessment against that of other market players
The Calculation
The calculation is centred around 100. An index figure of >100 represents a bullish sentiment where more investors expect a rising market. An index figure of <100 represents a bearish sentiment where more investors expect the market to fall.

Long instruments |
Short instruments |
|
Buy |
300 trades |
150 trades |
Sell |
200 trades |
350 trades |
Total |
1000 trades |
The further away the index figure is from the centre point (100), the stronger the sentiment.
