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As of Q4'25, SIRI's EV/EBITDA ratio stands at 82.62, marking a dramatic surge from the previous quarter's value of 7.57. This latest data point represents a significant spike and is the highest value observed in the entire period covered by the chart. From Q1'23 to Q2'24, the EV/EBITDA ratio fluctuated moderately between 8.07 and 11.58, before turning sharply negative from Q3'24 through Q2'25, reaching a low of -69.65 in Q3'24. The ratio then rebounded rapidly, returning to positive territory in Q3'25 and culminating in the substantial jump in Q4'25. This pattern indicates a period of financial volatility, with a notable inflection point in late 2024, followed by a strong recovery and an unusually high valuation by the end of 2025.