Shares in the German tourism and shipping firm TUI fell again after it confirmed that it will bid over 1.6 billion euros for the British-Canadian company CP Ships. The deal would create the world’s fifth largest container shipping fleet, but investors and analysts are not sure it makes sense. They are particularly worried that TUI will have to sell about one billion euros worth of new shares to fund the purchase.The shares were down 2.3%, after falling 5.1% last Friday, when TUI first revealed it had been talking with CP Ships. TUI’s chief executive, Michael Frenzel, said the move will strengthen its position in Asia, Australia and South America and he expects a short term increase in debt to be compensated for by higher cash generation. The company said integration would cost about 100 million euros, mostly coming next year, but there should be annual saving of about 180 million euros by the third full year following the acquisition. Industry analysts predict the world container fleet will expand by more than half in the next four years and increased capacity will result in lower shipping fees leading to companies getting together to cut costs.