Kering shares rose as much as 7.7 per cent on Wednesday (Jul 19) for their biggest intraday gain in more than eight months. The stock was up 7.5 per cent at 5.18 pm in Paris, giving the company a market value of about 65.9 billion euros. Kering's stock has heavily trailed rival luxury groups LVMH Moet Hennessy Louis Vuitton SE and Hermes International over the last 12 months.