PEN vs. PODD

Last updated Aug 1, 2026

PEN (Penumbra, Inc.) and PODD (Insulet Corporation) are both stocks. Both operate in the Medical Devices industry within the Healthcare sector. Over the past 10 years, PEN returned 16.73%/yr vs 16.70%/yr for PODD. Their 0.43 correlation means their historical movements had little consistent relationship.

Performance

PEN vs. PODD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Penumbra, Inc. (PEN) and Insulet Corporation (PODD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PEN achieves a 3.31% return, which is significantly higher than PODD's -41.83% return. Both investments have delivered pretty close results over the past 10 years, with PEN having a 16.73% annualized return and PODD not far behind at 16.70%.

PEN

• 1D: 0.43%
• 1M: 0.82%
• 6M: -10.32%
• YTD: 3.31%
• 1Y: 32.17%
• 3Y*: 2.49%
• 5Y*: 3.82%
• 10Y*: 16.73%
• ALL TIME*: 21.13%

PODD

• 1D: -0.20%
• 1M: 0.53%
• 6M: -35.36%
• YTD: -41.83%
• 1Y: -41.96%
• 3Y*: -15.18%
• 5Y*: -9.98%
• 10Y*: 16.70%
• ALL TIME*: 12.57%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
PEN Penumbra, Inc.	$134.82M	$123.94M	$132.27M
PODD Insulet Corporation	$206.30M	$208.54M	$240.19M

PEN vs. PODD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PEN Penumbra, Inc.	3.31%	30.92%	-5.59%	13.07%	-22.57%	64.18%	6.53%	34.43%	29.86%	47.49%
PODD Insulet Corporation	-41.83%	8.88%	20.32%	-26.30%	10.64%	4.08%	49.32%	115.83%	14.96%	83.12%

Correlation

The correlation between PEN and PODD is 0.39, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.39
Correlation (3Y) Balances recent behavior with more history.	0.40
Correlation (5Y) Shows whether the relationship held over a longer period.	0.45
Correlation (10Y) Provides a long-term view across more market conditions.	0.44
Correlation (All Time) Calculated using the full available price history since Sep 18, 2015	0.43

Fundamentals

Market Cap PEN : $12.63B PODD : $11.45B
EPS PEN : $4.07 PODD : $4.29
PE Ratio PEN : 78.91 PODD : 38.50
PEG Ratio PEN : 0.12 PODD : 0.04
PS Ratio PEN : 8.42 PODD : 4.02
PB Ratio PEN : 8.30 PODD : 8.91
Total Revenue (TTM) PEN : $1.50B PODD : $2.90B
Gross Profit (TTM) PEN : $1.02B PODD : $2.06B
EBITDA (TTM) PEN : $210.86M PODD : $529.70M

Return for Risk

PEN vs. PODD — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

PEN

PEN Risk / Return Rank: 75
PEN Sharpe Ratio Rank: 73
PEN Sortino Ratio Rank: 77
PEN Omega Ratio Rank: 80
PEN Calmar Ratio Rank: 71
PEN Martin Ratio Rank: 72

PODD

PODD Risk / Return Rank: 10
PODD Sharpe Ratio Rank: 4
PODD Sortino Ratio Rank: 6
PODD Omega Ratio Rank: 6
PODD Calmar Ratio Rank: 17
PODD Martin Ratio Rank: 14

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

PEN vs. PODD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Penumbra, Inc. (PEN) and Insulet Corporation (PODD). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	PEN	PODD	Difference
Sharpe ratio: Return per unit of total volatility	0.89	-1.07	+1.96
Sortino ratio: Return per unit of downside risk	1.83	-1.53	+3.37
Omega ratio: Gain probability vs. loss probability	1.26	0.81	+0.46
Calmar ratio: Return relative to maximum drawdown	1.28	-0.71	+1.99
Martin ratio: Return relative to average drawdown	3.26	-1.23	+4.49

PEN vs. PODD - Sharpe Ratio Comparison

The current PEN Sharpe Ratio is 0.89, which is higher than the PODD Sharpe Ratio of -1.07. The chart below compares the historical Sharpe Ratios of PEN and PODD, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PEN vs. PODD - Drawdown Comparison

The maximum PEN drawdown since its inception was -62.64%, smaller than the maximum PODD drawdown of -90.28%. Use the drawdown chart below to compare losses from any high point for PEN and PODD.

Drawdown Indicators

	PEN	PODD	Difference
Max Drawdown Largest peak-to-trough decline	-62.64%	-90.28%	+27.64%
Max Drawdown (1Y) Largest decline over 1 year	-21.44%	-60.61%	+39.17%
Max Drawdown (3Y) Largest decline over 3 years	-45.46%	-60.61%	+15.15%
Max Drawdown (5Y) Largest decline over 5 years	-60.14%	-61.31%	+1.17%
Max Drawdown (10Y) Largest decline over 10 years	-62.64%	-61.31%	-1.33%
Current Drawdown Current decline from peak	-10.63%	-53.13%	+42.50%
Average Drawdown Average peak-to-trough decline	-17.49%	-25.20%	+7.71%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.43%	34.66%	-26.23%

Volatility

PEN vs. PODD - Volatility Comparison

The current volatility for Penumbra, Inc. (PEN) is 1.76%, while Insulet Corporation (PODD) has a volatility of 9.40%. This indicates that PEN experiences smaller price fluctuations and is considered to be less risky than PODD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PEN	PODD	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.76%	9.40%	-7.64%
Volatility (6M) Calculated over the trailing 6-month period	7.28%	32.65%	-25.37%
Volatility (1Y) Calculated over the trailing 1-year period	30.76%	40.04%	-9.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	40.87%	42.96%	-2.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	41.27%	42.63%	-1.36%

Dividends

PEN vs. PODD - Dividend Comparison

Neither PEN nor PODD has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

PEN vs. PODD - Profitability Comparison

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

PEN - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Penumbra, Inc. reported a gross profit of 264.94M and revenue of 390.05M. Therefore, the gross margin over that period was 67.9%.

PODD - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Insulet Corporation reported a gross profit of 529.10M and revenue of 761.70M. Therefore, the gross margin over that period was 69.5%.

PEN - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Penumbra, Inc. reported an operating income of 41.04M and revenue of 390.05M, resulting in an operating margin of 10.5%.

PODD - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Insulet Corporation reported an operating income of 122.10M and revenue of 761.70M, resulting in an operating margin of 16.0%.

PEN - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Penumbra, Inc. reported a net income of 34.81M and revenue of 390.05M, resulting in a net margin of 8.9%.

PODD - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Insulet Corporation reported a net income of 91.10M and revenue of 761.70M, resulting in a net margin of 12.0%.

Frequently Asked Questions

Can I hold both PEN and PODD in my portfolio?

PEN and PODD have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PEN or PODD?

PODD has higher volatility (9.40%) compared to PEN (1.76%). In terms of maximum drawdown, PEN dropped -62.64% vs PODD's -90.28%.

Which has better risk-adjusted returns?

PEN currently has the higher Sharpe Ratio (0.89 vs -1.07), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.