The following table shows the month returns for the FTSE 250 Index for every month since the index was introduced in 1986. For example, in January 1987 the FTSE 250 Index rose 9.5%. Negative month returns have been highlighted with a blue cell background.
These observations are supported by the chart below which shows the average month returns for each month 1986-2014.
From this chart we can see the FTSE 250 Index has historically been strong the five consecutive months December-April. Its weakest month is September (an average month return of -1.7%), and its strongest month December (+2.8%).
Further articles on the FTSE 250 Index.