In the following two weeks, shares in Dechra fell from 161p to 136p, the lowest point since it floated late in 2000. Ian Page, Dechra's chief executive, said: 'I strongly believe that as a result of the commission's irresponsible statement, it caused a severe fall in the value of a public company.' The commission defines a scale monopoly as a market share of at least 25%. But it said there was no evidence that Dechra's market share was against the public interest. The commission said: 'We weren't picking them out for anti-competitive practices, we were just stating a fact.'