Based on the latest data from August 2025, VST is currently trading at $189.11, positioning the stock in the "Fair" valuation zone between the 14.4x PE multiple ($100.69) and 22.7x PE multiple ($159.44). The stock price has moved above the second PE boundary but remains below the third boundary, indicating a fair valuation level that suggests reasonable pricing relative to historical earnings multiples. Analyzing the historical trend, VST has experienced significant valuation expansion over the past five years. From 2020 to early 2023, the stock primarily traded in the "Undervalued" and "Value" zones, consistently below the 14.4x PE boundary around $20-30 price levels. A dramatic shift occurred starting in late 2023, when the stock broke above multiple PE boundaries and surged from around $37 in December 2023 to over $190 by August 2025. This represents a transition from trading below 6.0x PE multiples to the current fair valuation range between 14.4x and 22.7x PE multiples. The PE river chart shows an upward trending pattern throughout this period, suggesting improving company profitability that has supported the higher valuation levels. The stock reached peak valuations near the "Watch" zone boundaries in early 2025 before settling into the current fair valuation range.