Vistra goes on the too-hard pile because its value depends on the 2028+ power curve, which is very hard to price. Sector tailwinds are clear and it is well positioned for rising US power demand, but its ever-changing portfolio, complex hedging and three businesses in one make it hard to understand. P/E is the wrong lens; on 2027 numbers it looks cheap, at 8.8x EV/EBITDA and an 11.6% free cash flow yield before growth, but only because those years are fully hedged. x.comÂ