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Pfizer, Inc. (PFE) reported strong earnings and earnings guidance on Feb. 3. Large, unusual call option activity today, as seen in a Barchart report, shows that investors are bullish.
PFE is at $27.72 in midday trading on Feb. 11, higher than its pre-earnings release price of $26.66 on Feb. 2. Today's call option activity may indicate that investors expect PFE stock to keep rising.