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JC Penney's Big Beat, JD.com Earnings, Jim Cramer Swipes Amex

When JD.com debuted on public markets earlier this year, investors got a surprise in the form of the stock shooting up 10% on day one -- and, now, shares have gone up another 40%-plus from there. The Chinese e-commerce company is set to report earnings Friday morning, and could provide some window into Alibaba's bright future. Also, we will look back on JC Penney's earnings -- the retailer continues its turnaround with a top- and bottom-line beat. And, Jim Cramer is swiping in with his last Action Alert Pick of the week -- he is taking more shares of American Express after seeing the stock take a decline as of late.