Carnival plc, the British holding company in Carnival Corp & plc group, suffered a sharp fall in its share price at London opening on Monday, the first trading day after grounding of Costa Concordia on Friday.

At 0915 local time, the shares traded 17.5% lower since the opening at £18.55. However, they had hot a low of £16.00 earlier in the day.

The current share price means that the company has lost almost half of its value since a 52 week high of £31.71 early last year. The shares trade nevertheless well below their lows reached earlier in the economic downturn as in late 2008, they hit a five year low of below £13.00.