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The UK Stock Market Almanac 2016: Seasonality analysis and studies of market anomalies to give you an edge in the year ahead by Stephen Eckett

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FTSE 100 reviews – companies leaving the index

The charts below show the share price of nine companies that have recently left the FTSE 100. The time period for each chart is six months, starting from three months before the company left the index. The vertical line in each chart indicates the announcement date of the company leaving the index.

Observation

It can be seen that in most cases the share price falls in the period before the company leaves the FTSE 100. In many cases, after the review announcement the shares rise.

August

74, 0.4, 1.8

Week 34

Mon 22

FTSE 100

52

0.2

0.9

FTSE 250

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