BIIB
Price
$137.56
Change
+$1.89 (+1.39%)
Updated
Sep 26, 04:59 PM (EDT)
Capitalization
20.14B
25 days until earnings call
GSK
Price
$39.85
Change
+$0.33 (+0.84%)
Updated
Sep 26 closing price
Capitalization
79.62B
32 days until earnings call
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BIIB vs GSK

Header iconBIIB vs GSK Comparison
Open Charts BIIB vs GSKBanner chart's image
Biogen
Price$137.56
Change+$1.89 (+1.39%)
Volume$34.27K
Capitalization20.14B
GSK
Price$39.85
Change+$0.33 (+0.84%)
Volume$4.76M
Capitalization79.62B
BIIB vs GSK Comparison Chart in %
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BIIB
Daily Signalchanged days ago
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GSK
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BIIB vs. GSK commentary
Sep 27, 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 BIIB is a Buy and GSK is a StrongBuy.

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COMPARISON
Comparison
Sep 27, 2025
Stock price -- (BIIB: $137.37 vs. GSK: $39.85)
Brand notoriety: BIIB: Notable vs. GSK: Not notable
Both companies represent the Pharmaceuticals: Major industry
Current volume relative to the 65-day Moving Average: BIIB: 106% vs. GSK: 117%
Market capitalization -- BIIB: $20.14B vs. GSK: $79.62B
BIIB [@Pharmaceuticals: Major] is valued at $20.14B. GSK’s [@Pharmaceuticals: Major] market capitalization is $79.62B. The market cap for tickers in the [@Pharmaceuticals: Major] industry ranges from $649.52B to $0. The average market capitalization across the [@Pharmaceuticals: Major] industry is $87.98B.

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).

BIIB’s FA Score shows that 0 FA rating(s) are green whileGSK’s FA Score has 2 green FA rating(s).

  • BIIB’s FA Score: 0 green, 5 red.
  • GSK’s FA Score: 2 green, 3 red.
According to our system of comparison, GSK is a better buy in the long-term than BIIB.

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.

BIIB’s TA Score shows that 5 TA indicator(s) are bullish while GSK’s TA Score has 4 bullish TA indicator(s).

  • BIIB’s TA Score: 5 bullish, 4 bearish.
  • GSK’s TA Score: 4 bullish, 4 bearish.
According to our system of comparison, both BIIB and GSK are a good buy in the short-term.

Price Growth

BIIB (@Pharmaceuticals: Major) experienced а -3.60% price change this week, while GSK (@Pharmaceuticals: Major) price change was -2.02% for the same time period.

The average weekly price growth across all stocks in the @Pharmaceuticals: Major industry was -1.20%. For the same industry, the average monthly price growth was -0.44%, and the average quarterly price growth was +12.51%.

Reported Earning Dates

BIIB is expected to report earnings on Oct 22, 2025.

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

Industries' Descriptions

@Pharmaceuticals: Major (-1.20% 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
GSK($79.6B) has a higher market cap than BIIB($20.1B). GSK has higher P/E ratio than BIIB: GSK (17.91) vs BIIB (13.15). GSK YTD gains are higher at: 21.827 vs. BIIB (-11.280). GSK has higher annual earnings (EBITDA): 8.61B vs. BIIB (2.79B). GSK has more cash in the bank: 3.62B vs. BIIB (2.76B). BIIB has less debt than GSK: BIIB (6.6B) vs GSK (17.4B). GSK has higher revenues than BIIB: GSK (31.6B) vs BIIB (10B).
BIIBGSKBIIB / GSK
Capitalization20.1B79.6B25%
EBITDA2.79B8.61B32%
Gain YTD-11.28021.827-52%
P/E Ratio13.1517.9173%
Revenue10B31.6B32%
Total Cash2.76B3.62B76%
Total Debt6.6B17.4B38%
FUNDAMENTALS RATINGS
BIIB vs GSK: Fundamental Ratings
BIIB
GSK
OUTLOOK RATING
1..100
6575
VALUATION
overvalued / fair valued / undervalued
1..100
91
Overvalued
6
Undervalued
PROFIT vs RISK RATING
1..100
10065
SMR RATING
1..100
7440
PRICE GROWTH RATING
1..100
5955
P/E GROWTH RATING
1..100
9219
SEASONALITY SCORE
1..100
5075

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 significantly better than the same rating for BIIB (91) in the Biotechnology industry. This means that GSK’s stock grew significantly faster than BIIB’s over the last 12 months.

GSK's Profit vs Risk Rating (65) in the Pharmaceuticals Major industry is somewhat better than the same rating for BIIB (100) in the Biotechnology industry. This means that GSK’s stock grew somewhat faster than BIIB’s over the last 12 months.

GSK's SMR Rating (40) in the Pharmaceuticals Major industry is somewhat better than the same rating for BIIB (74) in the Biotechnology industry. This means that GSK’s stock grew somewhat faster than BIIB’s over the last 12 months.

GSK's Price Growth Rating (55) in the Pharmaceuticals Major industry is in the same range as BIIB (59) in the Biotechnology industry. This means that GSK’s stock grew similarly to BIIB’s over the last 12 months.

GSK's P/E Growth Rating (19) in the Pharmaceuticals Major industry is significantly better than the same rating for BIIB (92) in the Biotechnology industry. This means that GSK’s stock grew significantly faster than BIIB’s over the last 12 months.

TECHNICAL ANALYSIS
Technical Analysis
BIIBGSK
RSI
ODDS (%)
Bearish Trend 2 days ago
59%
Bearish Trend 2 days ago
51%
Stochastic
ODDS (%)
Bullish Trend 2 days ago
53%
Bullish Trend 1 day ago
55%
Momentum
ODDS (%)
Bearish Trend 2 days ago
67%
Bearish Trend 1 day ago
44%
MACD
ODDS (%)
Bearish Trend 2 days ago
67%
Bearish Trend 1 day ago
44%
TrendWeek
ODDS (%)
Bearish Trend 2 days ago
70%
Bearish Trend 1 day ago
50%
TrendMonth
ODDS (%)
Bearish Trend 2 days ago
69%
Bullish Trend 1 day ago
53%
Advances
ODDS (%)
Bullish Trend 10 days ago
55%
Bullish Trend 5 days ago
59%
Declines
ODDS (%)
Bearish Trend 2 days ago
70%
Bearish Trend 2 days ago
52%
BollingerBands
ODDS (%)
Bullish Trend 2 days ago
60%
Bullish Trend 1 day ago
67%
Aroon
ODDS (%)
Bullish Trend 2 days ago
45%
Bullish Trend 1 day ago
44%
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BIIB
Daily Signalchanged days ago
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GSK
Daily Signalchanged days ago
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BIIB and

Correlation & Price change

A.I.dvisor indicates that over the last year, BIIB has been loosely correlated with PFE. These tickers have moved in lockstep 57% of the time. This A.I.-generated data suggests there is some statistical probability that if BIIB jumps, then PFE could also see price increases.

1D
1W
1M
1Q
6M
1Y
5Y
Ticker /
NAME
Correlation
To BIIB
1D Price
Change %
BIIB100%
-1.45%
PFE - BIIB
57%
Loosely correlated
-2.03%
MRK - BIIB
50%
Loosely correlated
-2.60%
AMGN - BIIB
49%
Loosely correlated
-2.88%
NVS - BIIB
45%
Loosely correlated
-0.63%
GSK - BIIB
45%
Loosely correlated
-1.64%
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