<ul data-eligibleForWebStory="false">JPMorgan predicts Nifty could hit 30,000 in 6-9 months on earnings recovery.Expert highlights double-digit growth in earnings as key driving force for market.Optimism in stock market despite US tariff concerns and cautiousness among players.Expected growth in specific sectors like healthcare, insurance, and building materials.Indices stumbled due to US trade deal uncertainty and weak IT earnings.