Carnival (CCL 2.52%) was decimated by the pandemic, but its business has come surging back. And investors are noticing. The shares have more than doubled since the start of 2023, even though they remain an eye- watering 77% below their all-time high from January 2018. Is it time to buy this top cruise line stock hand over fist with $100 right now? The bullish sentiment might not be enough to overturn the negative factors. Momentum and valuation Carnival reported jaw-dropping 73% and 68% sales declines in fi ...