On this day in 1991 Aberdeen Asset Management listed on the LSE.
The following chart plots the average monthly out-performance of the shares over the FTSE 100 Index since 1994. For example, on average Aberdeen Asset Management has out-performed the FTSE 100 by 5.6 percentage points in December.
![Average monthly performance of Aberdeen Asset Management [ADN] relative to the FTSE 100 Index (1994-2012)](http://stockmarketalmanac.co.uk/wp-content/uploads/2013/02/Monthly-seasonality-of-shares-ADN-2013.png "Monthly seasonality of shares [ADN] (2013)")
Observations:
- The strongest month for Aberdeen Asset Management shares relative to the market has been December (the shares have out-performed the market in this month in 14 of the last 19 years).
- The weakest month for Aberdeen Asset Management relative to the market has been April (the shares have only out-performed the market in this month in 7 of the past 19 years).
