Tomorrow will be the last trading day (LTD) of February.
As explained in the 2014 edition of the Almanac the LTDs of months used to be stronger than average, but in recent years they have been weak. This can clearly be seen in the case of February from the chart below. From 1984 to 1994 the FTSE 100 only fell twice on the last trading of February; but in the last ten years the index has only risen twice on the February LTD.
Since 1984 the index average return on the February LTD has been -0.07% (one of only three months with a negative LTD average return). Since 2000, the index average return on this day is even worse at -0.32%
The following chart shows the FTSE 100 Index returns for every February LTD since 1984.