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Large unusual trading volume in Pfizer, Inc. (PFE) put options that expire 30 days from now signals investors' bullish outlook on PFE stock. It trades for just over 8 times earnings, well below its 10-year historical average P/E ratio.
PFE is at $25.24 in midday trading, still below prior highs in February, but up from lows in early April. Today's heavy put options volume signals investors are bullish on PFE stock.