One of the most popular "secret" perks of owning Carnival Corporation (CCL) stock in 2026 is the Shareholder Benefit Program. If you own at least 100 shares, you are eligible for an onboard credit (OBC) every time you sail on any of the company's brands (including Carnival, Princess, Holland America, and Cunard). As of 2026, the credit is typically $50 for cruises of 6 days or less, $100 for 7 to 13 days, and $250 for 14 days or longer. This credit can be used for drinks, specialty dining, shore excursions, or spa treatments. To claim it, you must submit proof of ownership via the StockPerks app at least three weeks before your cruise. While the stock price fluctuates, many frequent cruisers view this as a "dividend" that pays for itself over a few vacations. Note that this benefit is limited to one credit per stateroom and cannot be combined with certain "travel agent" or "casino" rates, so always check the current 2026 exclusions before booking.