The FTSE is having a bad day and a bad year.
The UK share index fell 1.13%, or 74.68 points to 6,505, giving up all of the gains it made in 2015.
Here's the year to date chart:
Pearson was the biggest faller today, dropping 4.54% after confirming it was in talks to sell its stake in The Economist.
Merlin Entertainments, which runs Alton Towers, fell 4.28% today after announcing that the crash at Alton Towers earlier this year will hit profits.