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© 2026 TechTars.com·Market data delayed by ~15 minutes. Not investment advice.
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    5. Pfizer Inc. vs Merck & Co.

    Pfizer Inc. vs Merck & Co. Stock Comparison

    Side-by-side stock comparison - today's price, recent moves, technicals, and why each moved. Educational data, not a recommendation.

    More US stock comparisons

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    Written by Yadav PatleFounder, TechTars, 7+ years tracking Indian & US markets
    •
    Last updated: 15 November 2026 at 9:40 pm IST
    •How we analyse stocksFounder, TechTars · 7+ years tracking Indian & US markets

    Pfizer Inc. (PFE) is up 0.21% while Merck & Co. (MRK) is up 0.55% on the NYSE/NASDAQ. Today, Merck & Co. has the larger percentage move. Over the last 5 trading sessions, Pfizer Inc. is down 0.50% and Merck & Co. is up 0.71%. Over about 6 months, Pfizer Inc. is up 12.19% and Merck & Co. is up 30.29%.

    Pfizer Inc.PFE
    $28.89
    +0.21%
    vs
    Merck & Co.MRK
    $147.76
    +0.55%

    Pfizer Inc. vs Merck & Co.: today's numbers

    43/100Developing
    Move strength
    29/100Developing
    Mixed signals
    Signal tone
    Positive signals
    45 (neutral)
    RSI
    53 (neutral)
    Uptrend
    Trend
    Sideways
    Below
    MACD vs signal
    Above
    $28.67
    Support
    $145.66
    $29.48
    Resistance
    $148.78
    Medium
    Explanation confidence
    Low

    Move strength and explanation confidence are TechTars scores built from price, volume, news, sector and technical data. How they are calculated.

    Pfizer Inc. or Merck & Co.: which is better?

    There is no single answer, and TechTars does not recommend either stock. Which one suits you depends on your goals, time horizon and how much risk you can take. Here is how Pfizer Inc. and Merck & Co. compare on the facts.

    -0.50%
    5-session move
    +0.71%
    +12.19%
    6-month move
    +30.29%
    1.06%
    Typical daily move
    1.51%
    $23.62 - $31.44
    52-week range
    $92.11 - $156.92
    8.1%
    Below 52-week high
    5.8%
    Above
    vs 50-day average
    Above

    Past moves do not predict future returns. A bigger typical daily move means larger swings in both directions.

    Why Pfizer Inc. moved today

    PFE rose 0.2% after the headline "How Much Does a 65-Year-Old Need Invested in Dividend Stocks to...".

    Why Merck & Co. moved today

    MRK rose 0.6% after the headline "Merck announces European CHMP recommends approval of Enflonsia".

    Read full Pfizer Inc. analysisRead full Merck & Co. analysis

    Pfizer Inc. vs Merck & Co.: common questions

    Is Pfizer Inc. or Merck & Co. better for investment?

    TechTars does not say which stock to buy. The answer depends on your goals, time horizon and risk tolerance. Over the last 5 trading sessions, Pfizer Inc. is down 0.50% and Merck & Co. is up 0.71%. Over about 6 months, Pfizer Inc. is up 12.19% and Merck & Co. is up 30.29%. Past moves do not predict future returns. Read the full analysis of each stock, and speak to a registered investment adviser before investing.

    Which is more volatile, Pfizer Inc. or Merck & Co.?

    On a typical day over the past 6 months, Pfizer Inc. moved about 1.06% and Merck & Co. about 1.51%, so Merck & Co. has had the bigger daily swings. A bigger typical daily move means larger swings in both directions.

    How far are Pfizer Inc. and Merck & Co. from their 52-week highs?

    Pfizer Inc. is 8.1% below its 52-week high and Merck & Co. is 5.8% below its own. The 52-week high is the highest price in the past year.

    This side-by-side comparison of PFE and MRK is generated from publicly available price, volume, and news data using the methodology at /methodology/stock-analysis. It is educational context, not a recommendation to buy or sell either stock, and does not say which is a "better" investment. Prices and indicators change minute-to-minute. Consult a registered investment adviser before acting on any of this information.