GSK
Price
$40.04
Change
-$0.26 (-0.65%)
Updated
Sep 16, 04:59 PM (EDT)
Capitalization
80.69B
43 days until earnings call
MRK
Price
$81.11
Change
+$0.09 (+0.11%)
Updated
Sep 16, 04:59 PM (EDT)
Capitalization
202.55B
44 days until earnings call
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GSK vs MRK

Header iconGSK vs MRK Comparison
Open Charts GSK vs MRKBanner chart's image
GSK
Price$40.04
Change-$0.26 (-0.65%)
Volume$23.21K
Capitalization80.69B
Merck & Co
Price$81.11
Change+$0.09 (+0.11%)
Volume$54.89K
Capitalization202.55B
GSK vs MRK Comparison Chart in %
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GSK
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MRK
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GSK vs. MRK commentary
Sep 17, 2025

To compare these two companies we present long-term analysis, their fundamental ratings and make comparative short-term technical analysis which are presented below. The conclusion is GSK is a Buy and MRK is a Buy.

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COMPARISON
Comparison
Sep 17, 2025
Stock price -- (GSK: $40.05 vs. MRK: $81.09)
Brand notoriety: GSK: Not notable vs. MRK: Notable
Both companies represent the Pharmaceuticals: Major industry
Current volume relative to the 65-day Moving Average: GSK: 71% vs. MRK: 96%
Market capitalization -- GSK: $80.69B vs. MRK: $202.55B
GSK [@Pharmaceuticals: Major] is valued at $80.69B. MRK’s [@Pharmaceuticals: Major] market capitalization is $202.55B. The market cap for tickers in the [@Pharmaceuticals: Major] industry ranges from $685.53B to $0. The average market capitalization across the [@Pharmaceuticals: Major] industry is $89.02B.

Long-Term Analysis

It is best to consider a long-term outlook for a ticker by using Fundamental Analysis (FA) ratings. The rating of 1 to 100, where 1 is best and 100 is worst, is divided into thirds. The first third (a green rating of 1-33) indicates that the ticker is undervalued; the second third (a grey number between 34 and 66) means that the ticker is valued fairly; and the last third (red number of 67 to 100) reflects that the ticker is undervalued. We use an FA Score to show how many ratings show the ticker to be undervalued (green) or overvalued (red).

GSK’s FA Score shows that 2 FA rating(s) are green whileMRK’s FA Score has 2 green FA rating(s).

  • GSK’s FA Score: 2 green, 3 red.
  • MRK’s FA Score: 2 green, 3 red.
According to our system of comparison, GSK is a better buy in the long-term than MRK.

Short-Term Analysis

It is best to consider a short-term outlook for a ticker by using Technical Analysis (TA) indicators. We use Odds of Success as the percentage of outcomes which confirm successful trade signals in the past.

If the Odds of Success (the likelihood of the continuation of a trend) for each indicator are greater than 50%, then the generated signal is confirmed. A green percentage from 90% to 51% indicates that the ticker is in a bullish trend. A red percentage from 90% - 51% indicates that the ticker is in a bearish trend. All grey percentages are below 50% and are considered not to confirm the trend signal.

GSK’s TA Score shows that 6 TA indicator(s) are bullish while MRK’s TA Score has 5 bullish TA indicator(s).

  • GSK’s TA Score: 6 bullish, 4 bearish.
  • MRK’s TA Score: 5 bullish, 5 bearish.
According to our system of comparison, GSK is a better buy in the short-term than MRK.

Price Growth

GSK (@Pharmaceuticals: Major) experienced а -1.79% price change this week, while MRK (@Pharmaceuticals: Major) price change was -3.21% for the same time period.

The average weekly price growth across all stocks in the @Pharmaceuticals: Major industry was -0.68%. For the same industry, the average monthly price growth was +1.00%, and the average quarterly price growth was +11.13%.

Reported Earning Dates

GSK is expected to report earnings on Oct 29, 2025.

MRK is expected to report earnings on Oct 30, 2025.

Industries' Descriptions

@Pharmaceuticals: Major (-0.68% weekly)

The Major Pharmaceuticals industry includes companies that are involved in various processes of creating drugs to treat/prevent diseases. These companies engage in research, testing and manufacturing, as well as the distribution of pharmaceuticals into markets. Johnson & Johnson, Merck & Co., Inc., Pfizer Inc. and Novartis are among the largest companies in this category.

SUMMARIES
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FUNDAMENTALS
Fundamentals
MRK($203B) has a higher market cap than GSK($80.7B). GSK has higher P/E ratio than MRK: GSK (17.87) vs MRK (12.49). GSK YTD gains are higher at: 22.438 vs. MRK (-16.139). MRK has higher annual earnings (EBITDA): 25B vs. GSK (8.61B). GSK has less debt than MRK: GSK (17.4B) vs MRK (35.4B). MRK has higher revenues than GSK: MRK (63.6B) vs GSK (31.6B).
GSKMRKGSK / MRK
Capitalization80.7B203B40%
EBITDA8.61B25B34%
Gain YTD22.438-16.139-139%
P/E Ratio17.8712.49143%
Revenue31.6B63.6B50%
Total Cash3.62BN/A-
Total Debt17.4B35.4B49%
FUNDAMENTALS RATINGS
GSK vs MRK: Fundamental Ratings
GSK
MRK
OUTLOOK RATING
1..100
8465
VALUATION
overvalued / fair valued / undervalued
1..100
6
Undervalued
8
Undervalued
PROFIT vs RISK RATING
1..100
6780
SMR RATING
1..100
4027
PRICE GROWTH RATING
1..100
5462
P/E GROWTH RATING
1..100
2791
SEASONALITY SCORE
1..100
n/an/a

Tickeron ratings are formulated such that a rating of 1 designates the most successful stocks in a given industry, while a rating of 100 points to the least successful stocks for that industry.

GSK's Valuation (6) in the Pharmaceuticals Major industry is in the same range as MRK (8). This means that GSK’s stock grew similarly to MRK’s over the last 12 months.

GSK's Profit vs Risk Rating (67) in the Pharmaceuticals Major industry is in the same range as MRK (80). This means that GSK’s stock grew similarly to MRK’s over the last 12 months.

MRK's SMR Rating (27) in the Pharmaceuticals Major industry is in the same range as GSK (40). This means that MRK’s stock grew similarly to GSK’s over the last 12 months.

GSK's Price Growth Rating (54) in the Pharmaceuticals Major industry is in the same range as MRK (62). This means that GSK’s stock grew similarly to MRK’s over the last 12 months.

GSK's P/E Growth Rating (27) in the Pharmaceuticals Major industry is somewhat better than the same rating for MRK (91). This means that GSK’s stock grew somewhat faster than MRK’s over the last 12 months.

TECHNICAL ANALYSIS
Technical Analysis
GSKMRK
RSI
ODDS (%)
Bearish Trend 2 days ago
51%
Bearish Trend 2 days ago
69%
Stochastic
ODDS (%)
Bearish Trend 2 days ago
42%
Bullish Trend 2 days ago
62%
Momentum
ODDS (%)
Bullish Trend 2 days ago
61%
Bearish Trend 2 days ago
45%
MACD
ODDS (%)
Bullish Trend 2 days ago
67%
Bearish Trend 2 days ago
55%
TrendWeek
ODDS (%)
Bullish Trend 2 days ago
60%
Bearish Trend 2 days ago
50%
TrendMonth
ODDS (%)
Bullish Trend 2 days ago
53%
Bearish Trend 2 days ago
43%
Advances
ODDS (%)
Bullish Trend 12 days ago
59%
Bullish Trend 15 days ago
47%
Declines
ODDS (%)
Bearish Trend 2 days ago
52%
Bearish Trend 2 days ago
52%
BollingerBands
ODDS (%)
Bearish Trend 2 days ago
43%
Bullish Trend 2 days ago
68%
Aroon
ODDS (%)
Bullish Trend 2 days ago
48%
Bullish Trend 2 days ago
55%
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GSK
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MRK
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GSK and

Correlation & Price change

A.I.dvisor indicates that over the last year, GSK has been closely correlated with NVS. These tickers have moved in lockstep 68% of the time. This A.I.-generated data suggests there is a high statistical probability that if GSK jumps, then NVS could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To GSK
1D Price
Change %
GSK100%
-0.62%
NVS - GSK
68%
Closely correlated
-0.43%
AZN - GSK
62%
Loosely correlated
-0.63%
PFE - GSK
58%
Loosely correlated
-0.29%
SNY - GSK
51%
Loosely correlated
+0.51%
JNJ - GSK
50%
Loosely correlated
-0.53%
More

MRK and

Correlation & Price change

A.I.dvisor indicates that over the last year, MRK has been loosely correlated with PFE. These tickers have moved in lockstep 59% of the time. This A.I.-generated data suggests there is some statistical probability that if MRK jumps, then PFE could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To MRK
1D Price
Change %
MRK100%
+0.09%
PFE - MRK
59%
Loosely correlated
-0.29%
ABBV - MRK
50%
Loosely correlated
-0.62%
BIIB - MRK
50%
Loosely correlated
+0.25%
BMY - MRK
47%
Loosely correlated
-0.02%
NVS - MRK
47%
Loosely correlated
-0.43%
More