Should you prioritize the global scale of Booking (BKNG -0.05%) or the rapid expansion of Celsius (CELH +0.04%) for your portfolio in 2026? As of its December 2025 balance sheet, the debt-to-equity ratio was -3.5x, reflecting negative shareholders’ equity due to stock buybacks. Metric Booking Celsius Forward P/E 20.5x 17.4x P/S ratio 6.2x 2.8xValuation metrics sourced from Financial Modeling Prep (FMP) and may differ from other data providers. Booking is one of the leading travel booking operators. Shares of Booking Holdings have rebounded recently after the pullback, but still trade at a reasonable forward P/E relative to growth estimates.