Costa grossly overvalued?

Hi everyone. Just did some number crunching and realised that Costa is way overvalued at the moment and financials don't look too great. So it surprises me the recent spike in SP. I'm predicting this will fall below $3 again soon however (I'll be topping up then). Comments?

Enterprise value: $1.22B
Book value per share: $1.13
Operating margin (using EBITDA): 8.8%
Dividend yield: 2.9%
ROE: 7%
ROIC: 5.5%
Net gearing: 27%
Free cash flow: $14.4M
P/E: 39.6
EV/EBIT: 34
EV/FCF: 85
FCF/Sales: 1.78c