On this day in 1984 BT Group listed on the LSE.
The following chart plots the average monthly out-performance of the shares over the FTSE 100 Index since 1988. For example, on average BT Group has out-performed the FTSE 100 by 2.1 percentage points in June.
![Average monthly performance of BT Group [BT.A] relative to the FTSE 100 Index (1988-2013)](http://stockmarketalmanac.co.uk/wp-content/uploads/2013/11/Monthly-seasonality-of-shares-BT.A-2013.png "Monthly seasonality of shares [BT.A] (2013)")
Observations:
- The strongest month for BT Group shares relative to the market has been June (the shares have out-performed the market in this month in 16 of the last 26 years).
- The weakest month for BT Group relative to the market has been August (the shares have only out-performed the market in this month in 10 of the past 26 years).
BT Group is in the FTSE 350 Fixed Line Telecommunications [NMX6530] sector.
