K vs. PFE

Last updated Jun 6, 2026

K (Kellogg Company) and PFE (Pfizer Inc.) are both stocks. K operates in Packaged Foods (Consumer Defensive), while PFE operates in Drug Manufacturers - General (Healthcare). At a 0.29 correlation, their price movements are largely independent.

Performance

K vs. PFE - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Kellogg Company (K) and Pfizer Inc. (PFE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

K

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

PFE

• 1D: 1.36%
• 1M: 1.40%
• YTD: 8.09%
• 6M: 3.39%
• 1Y: 19.31%
• 3Y*: -6.48%
• 5Y*: -2.98%
• 10Y*: 2.09%

*Multi-year figures are annualized to reflect compound growth (CAGR)

K vs. PFE - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
K Kellogg Company	0.00%	5.99%	49.75%	-7.44%	14.35%	7.44%	-6.78%	26.08%	-13.32%	-4.93%
PFE Pfizer Inc.	8.09%	0.65%	-2.22%	-41.26%	-10.41%	66.70%	3.07%	-6.91%	24.82%	15.90%

Correlation

The correlation between K and PFE is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.13
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.19
Correlation (10Y) Calculated over the trailing 10-year period	0.21
Correlation (All Time) Calculated using the full available price history since Dec 18, 1984	0.29

The correlation between K and PFE shifts across timeframes, from 0.13 (1 year) to 0.29 (all time), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap K : $29.20B PFE : $149.24B
EPS K : $3.65 PFE : $1.31
PE Ratio K : 22.87 PFE : 19.85
PEG Ratio K : 3.84 PFE : 0.36
PS Ratio K : 2.30 PFE : 2.35
PB Ratio K : 6.95 PFE : 1.66
Total Revenue (TTM) K : $12.67B PFE : $63.32B
Gross Profit (TTM) K : $4.41B PFE : $43.91B
EBITDA (TTM) K : $2.25B PFE : $16.94B

Return for Risk

K vs. PFE — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

PFE

PFE Risk / Return Rank: 67
PFE Sharpe Ratio Rank: 68
PFE Sortino Ratio Rank: 64
PFE Omega Ratio Rank: 61
PFE Calmar Ratio Rank: 72
PFE Martin Ratio Rank: 70

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

K vs. PFE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Kellogg Company (K) and Pfizer Inc. (PFE). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	K	PFE	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	0.86	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	-0.12	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.09	—
Sharpe Ratio (All Time) Calculated using the full available price history	—	0.33	—

Drawdowns

Drawdown Indicators

	K	PFE	Difference
Max Drawdown Largest peak-to-trough decline	—	-69.24%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-11.47%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-40.75%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-58.96%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-58.96%	—
Current Drawdown Current decline from peak	—	-46.03%	—
Average Drawdown Average peak-to-trough decline	—	-22.89%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	5.59%	—

Volatility

Volatility by Period

	K	PFE	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.50%	—
Volatility (6M) Calculated over the trailing 6-month period	—	14.66%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	23.92%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	25.50%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	23.88%	—

Dividends

K vs. PFE - Dividend Comparison

K's dividend yield for the trailing twelve months is around 1.39%, less than PFE's 6.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
K Kellogg Company	1.39%	2.76%	2.79%	10.56%	3.28%	3.59%	3.66%	3.27%	3.86%	3.12%	2.77%	2.74%
PFE Pfizer Inc.	6.61%	6.91%	6.33%	5.70%	3.12%	2.64%	3.92%	3.68%	3.12%	3.53%	3.69%	3.47%

Financials

K vs. PFE - Profitability Comparison

The chart below illustrates the profitability comparison between Kellogg Company and Pfizer Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

K - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Kellogg Company reported a gross profit of 1.08B and revenue of 3.26B. Therefore, the gross margin over that period was 33.3%.

PFE - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Pfizer Inc. reported a gross profit of 9.72B and revenue of 14.45B. Therefore, the gross margin over that period was 67.3%.

K - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Kellogg Company reported an operating income of 452.00M and revenue of 3.26B, resulting in an operating margin of 13.9%.

PFE - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Pfizer Inc. reported an operating income of 4.03B and revenue of 14.45B, resulting in an operating margin of 27.9%.

K - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Kellogg Company reported a net income of 309.00M and revenue of 3.26B, resulting in a net margin of 9.5%.

PFE - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Pfizer Inc. reported a net income of 2.69B and revenue of 14.45B, resulting in a net margin of 18.6%.

Frequently Asked Questions

Can I hold both K and PFE in my portfolio?

K and PFE have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.