On this day in 1981 BAE 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 BAE has out-performed the FTSE 100 by 1.3 percentage points in March.

Observations:

1. The strongest months for BAE relative to the market have been March and September (the shares have out-performed the market in September in 13 of the last 19 years).
2. BAE shares have been weak relative to the market in October; the shares have only out-performed the market in October in seven of the past 19 years.