PODD vs. VOO

Last updated Aug 1, 2026

PODD (Insulet Corporation) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, PODD returned 16.70%/yr vs 15.14%/yr for VOO. Their 0.45 correlation means their historical movements had little consistent relationship.

Performance

PODD vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Insulet Corporation (PODD) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PODD achieves a -41.83% return, which is significantly lower than VOO's 10.16% return. Over the past 10 years, PODD has outperformed VOO with an annualized return of 16.70%, while VOO has yielded a comparatively lower 15.14% annualized return.

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%

VOO

• 1D: 0.71%
• 1M: 0.26%
• 6M: 8.58%
• YTD: 10.16%
• 1Y: 21.58%
• 3Y*: 19.42%
• 5Y*: 12.83%
• 10Y*: 15.14%
• ALL TIME*: 14.78%

*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)
PODD Insulet Corporation	$206.30M	$208.54M	$240.19M
VOO Vanguard S&P 500 ETF	$3.82B	$3.78B	$5.44B

PODD vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PODD Insulet Corporation	-41.83%	8.88%	20.32%	-26.30%	10.64%	4.08%	49.32%	115.83%	14.96%	83.12%
VOO Vanguard S&P 500 ETF	10.16%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between PODD and VOO is 0.08, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.08
Correlation (3Y) Balances recent behavior with more history.	0.29
Correlation (5Y) Shows whether the relationship held over a longer period.	0.41
Correlation (10Y) Provides a long-term view across more market conditions.	0.40
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.45

Over the past year, the correlation between PODD and VOO has dropped to 0.08 - well below their long-term average of 0.45, suggesting their price drivers have been diverging.

Return for Risk

PODD vs. VOO — Risk / Return Rank

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

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

VOO

VOO Risk / Return Rank: 68
VOO Sharpe Ratio Rank: 68
VOO Sortino Ratio Rank: 65
VOO Omega Ratio Rank: 66
VOO Calmar Ratio Rank: 64
VOO Martin Ratio Rank: 76

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.

PODD vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Insulet Corporation (PODD) and Vanguard S&P 500 ETF (VOO). 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.

	PODD	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-1.07	1.53	-2.61
Sortino ratio: Return per unit of downside risk	-1.53	2.13	-3.67
Omega ratio: Gain probability vs. loss probability	0.81	1.28	-0.47
Calmar ratio: Return relative to maximum drawdown	-0.71	2.21	-2.92
Martin ratio: Return relative to average drawdown	-1.23	9.44	-10.67

PODD vs. VOO - Sharpe Ratio Comparison

The current PODD Sharpe Ratio is -1.07, which is lower than the VOO Sharpe Ratio of 1.53. The chart below compares the historical Sharpe Ratios of PODD and VOO, 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

PODD vs. VOO - Drawdown Comparison

The maximum PODD drawdown since its inception was -90.28%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for PODD and VOO.

Drawdown Indicators

	PODD	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-90.28%	-33.99%	-56.29%
Max Drawdown (1Y) Largest decline over 1 year	-60.61%	-8.90%	-51.71%
Max Drawdown (3Y) Largest decline over 3 years	-60.61%	-18.69%	-41.92%
Max Drawdown (5Y) Largest decline over 5 years	-61.31%	-24.52%	-36.79%
Max Drawdown (10Y) Largest decline over 10 years	-61.31%	-33.99%	-27.32%
Current Drawdown Current decline from peak	-53.13%	-1.38%	-51.75%
Average Drawdown Average peak-to-trough decline	-25.20%	-3.67%	-21.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	34.66%	2.08%	+32.58%

Volatility

PODD vs. VOO - Volatility Comparison

Insulet Corporation (PODD) has a higher volatility of 9.40% compared to Vanguard S&P 500 ETF (VOO) at 3.54%. This indicates that PODD's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PODD	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.40%	3.54%	+5.86%
Volatility (6M) Calculated over the trailing 6-month period	32.65%	10.10%	+22.55%
Volatility (1Y) Calculated over the trailing 1-year period	40.04%	12.82%	+27.22%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.96%	16.93%	+26.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.63%	18.01%	+24.62%

Dividends

PODD vs. VOO - Dividend Comparison

PODD has not paid dividends to shareholders, while VOO's dividend yield for the trailing twelve months is around 1.07%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PODD Insulet Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.07%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both PODD and VOO in my portfolio?

PODD and VOO have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PODD or VOO?

PODD has higher volatility (9.40%) compared to VOO (3.54%). In terms of maximum drawdown, PODD dropped -90.28% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.53 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.