Vistra Stock Sits 37% Below Its High While Power Demand Keeps Climbing. Should You Buy It?

The market is still pricing VST as a crowded AI-power beta trade, but the business is migrating toward long-duration contracted cash flow with residual merchant upside. That matters because the near-term catalyst is not earnings; most of the 2026 volume is already economically spoken for, so the stock can stay range-bound even if reported results remain strong. The bigger rerating lever is whether the market starts capitalizing the backlog like infrastructure rather than commodity exposure.

Second-order, AMZN and META are not just customers; they are signaling that hyperscalers are willing to lock baseload supply years ahead, which should improve bargaining power for other nuclear owners and eventually tighten the multiple spread between contracted names and merchant-heavy generators. CEG is the cleanest public comparator, but the broader loser group is any power producer that can’t offer low-carbon firm capacity or interconnection certainty. On the bond side, durable PPAs should help credit spreads over time, especially if management keeps buying back stock instead of levering up for growth.

The contrarian risk is that the market is probably underestimating timing risk. The demand story is real, but the equity only captures it if data-center capex and grid buildout stay on schedule; a six-month pause in hyperscaler deployment would hit sentiment long before it hits cash flow. Also, hedge-accounting noise can keep headline earnings volatile and mask the underlying FCF story, which means the stock can stay cheap longer than bulls expect.

What would falsify the thesis is not a weak quarter; it would be a downgrade to 2027 EBITDA or evidence that new long-term contracts stop clearing at attractive prices. If that happens, the valuation argument breaks and this becomes just another cyclical power name.