Pfizer and Johnson & Johnson are poised for pivotal financial disclosures tied to their Covid-19 vaccine revenues, with Wall Street anticipating a weak report from Pfizer despite some pricing optimism. Meanwhile, Johnson & Johnson's performance is projected to positively influence Stryker's gains. Broader market trends reveal that 73% of S&P 500 companies have outperformed earnings expectations even as bottom-line misses rise to 22%, with CVS Health also expected to release solid third-quarter results.