About Merck & Co. Inc. (MRK)

Merck & Co. Inc. trades on the stock market under the ticker symbol MRK in the Healthcare sector, specifically within the Drug Manufacturers - General industry. This stock research page provides a comprehensive snapshot of fundamental data, trading activity, and analyst sentiment.

Key Data Points Explained

• P/E Ratio: Price-to-earnings ratio measures the stock price relative to its earnings per share — a core valuation metric.
• Dividend Yield: The annual dividend payment as a percentage of the current stock price.
• Volatility: Historical volatility over 20, 50, 100, and 250-day windows shows how much the stock price fluctuates — essential for option pricing.
• Put/Call Ratio: Compares put option volume to call option volume, indicating market sentiment (above 1.0 = bearish, below 1.0 = bullish).
• Broker Recommendations: Aggregated analyst ratings from strong buy to strong sell, plus week-over-week changes.

Options Trading on MRK

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