Pfizer Inc. experienced a 3.9% decline in share price during extended trading, even as it reported a significant 27.06% earnings surprise in its last quarter. The pharmaceutical company has maintained an impressive four-quarter earnings surprise average of 19.79%, but its year-to-date stock performance shows a decline of 13.8%. With earnings per share expectations of $1.66 ahead of the May 3 report, analysts are closely watching Pfizer's market position, bolstered by its COVID-19 vaccine and a stable dividend yield of 3.3%.