JPMorgan leads stock market surge while Chicago banks report earnings.

Stocks ended the week with gains despite a dip on Friday, with the Dow leading the way up over 1%. JPMorgan's shares surged over 7% after reporting strong Q1 earnings, while Citi and Wells Fargo also reported rising income and revenue. Economic data showed an uptick in consumer inflation expectations, which caused some volatility in the markets. Retail sales fell 1% in March, but industrial production data came in better than expected.