US solar stocks rise in premarket; First Solar up 8.6%, Enphase up 6.7%

A premarket move of this size across solar names points to a sector-wide catalyst rather than company-specific news, since the item attributes the gains to a broader advance in solar equities. That matters because solar has been sensitive to policy and financing conditions, so a coordinated jump can signal shifting expectations for the whole group. Whether the premarket strength holds through the regular session, and whether it spreads beyond the headline names, is the open question worth watching.