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BFLY vs. VOO
Performance
Return for Risk
Drawdowns
Volatility
Dividends

BFLY vs. VOO

Last updated Jun 5, 2026

BFLY (Butterfly Network, Inc.) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, BFLY returned -17.11%/yr vs 13.98%/yr for VOO. At a 0.43 correlation, their price movements are largely independent.

Performance

BFLY vs. VOO - Performance Comparison

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

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Returns By Period

In the year-to-date period, BFLY achieves a 36.58% return, which is significantly higher than VOO's 11.34% return.

BFLY

1D
18.22%
1M
7.68%
YTD
36.58%
6M
69.61%
1Y
117.15%
3Y*
31.35%
5Y*
-17.11%
10Y*
—

VOO

1D
0.39%
1M
4.62%
YTD
11.34%
6M
11.27%
1Y
28.62%
3Y*
22.68%
5Y*
13.98%
10Y*
15.55%
*Multi-year figures are annualized to reflect compound growth (CAGR)

BFLY vs. VOO - Yearly Performance Comparison

2026 (YTD)202520242023202220212020
BFLY
Butterfly Network, Inc.		36.58%21.79%188.89%-56.10%-63.23%-66.20%99.90%
VOO
Vanguard S&P 500 ETF		11.34%17.82%24.98%26.32%-18.17%28.79%19.85%

Correlation

The correlation between BFLY and VOO is 0.48, which is low. Their price movements are largely independent, making them effective diversification partners.

Correlation
Correlation (1Y)
Calculated over the trailing 1-year period

0.48

Correlation (3Y)
Calculated over the trailing 3-year period

0.43

Correlation (5Y)
Calculated over the trailing 5-year period

0.46

Correlation (All Time)
Calculated using the full available price history since Jul 14, 2020

0.43

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Butterfly Network, Inc.

Vanguard S&P 500 ETF

Often compared with BFLY:
BFLY vs. RPIDBFLY vs. SATSBFLY vs. ACRSBFLY vs. MVSTBFLY vs. FATEBFLY vs. SPYBFLY vs. LOW
Often compared with VOO:
VOO vs. VTIVOO vs. QQQVOO vs. SCHDVOO vs. VTVOO vs. SPYVOO vs. FXAIXVOO vs. IVV

Return for Risk

BFLY vs. VOO — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
BFLY
BFLY Risk / Return Rank: 7777
Overall Rank
BFLY Sharpe Ratio Rank: 7474
Sharpe Ratio Rank
BFLY Sortino Ratio Rank: 8080
Sortino Ratio Rank
BFLY Omega Ratio Rank: 7777
Omega Ratio Rank
BFLY Calmar Ratio Rank: 7878
Calmar Ratio Rank
BFLY Martin Ratio Rank: 7575
Martin Ratio Rank
VOO
VOO Risk / Return Rank: 7474
Overall Rank
VOO Sharpe Ratio Rank: 7676
Sharpe Ratio Rank
VOO Sortino Ratio Rank: 7575
Sortino Ratio Rank
VOO Omega Ratio Rank: 7575
Omega Ratio Rank
VOO Calmar Ratio Rank: 6666
Calmar Ratio Rank
VOO Martin Ratio Rank: 7878
Martin Ratio Rank
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.

BFLY vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Butterfly Network, Inc. (BFLY) 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.

BFLYVOODifference
Sharpe ratioReturn per unit of total volatility
1.09
2.44

-1.35

Sortino ratioReturn per unit of downside risk
2.33
3.31

-0.98

Omega ratioGain probability vs. loss probability

1.27

1.44

-0.17

Calmar ratioReturn relative to maximum drawdown

2.40

3.23

-0.83

Martin ratioReturn relative to average drawdown

4.84

15.03

-10.19

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BFLY vs. VOO - Sharpe Ratio Comparison

The current BFLY Sharpe Ratio is 1.09, which is lower than the VOO Sharpe Ratio of 2.44. The chart below compares the historical Sharpe Ratios of BFLY 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.

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Sharpe Ratios by Period

BFLYVOODifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.09

2.44

-1.35

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.18

0.84

-1.01

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

—

0.87

—

Sharpe Ratio (All Time)

Calculated using the full available price history

-0.11

0.89

-1.00

Drawdowns

BFLY vs. VOO - Drawdown Comparison

The maximum BFLY drawdown since its inception was -97.40%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for BFLY and VOO.

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Drawdown Indicators

BFLYVOODifference

Max Drawdown

Largest peak-to-trough decline

-97.40%

-33.99%

-63.41%

Max Drawdown (1Y)

Largest decline over 1 year

-49.04%

-8.90%

-40.14%

Max Drawdown (3Y)

Largest decline over 3 years

-73.20%

-18.69%

-54.51%

Max Drawdown (5Y)

Largest decline over 5 years

-95.23%

-24.52%

-70.71%

Max Drawdown (10Y)

Largest decline over 10 years

—

-33.99%

—

Current Drawdown

Current decline from peak

-80.88%

-0.32%

-80.56%

Average Drawdown

Average peak-to-trough decline

-75.96%

-3.69%

-72.27%

Ulcer Index

Depth and duration of drawdowns from previous peaks

24.27%

1.91%

+22.36%

Volatility

BFLY vs. VOO - Volatility Comparison

Butterfly Network, Inc. (BFLY) has a higher volatility of 25.03% compared to Vanguard S&P 500 ETF (VOO) at 2.78%. This indicates that BFLY'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.

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Volatility by Period

BFLYVOODifference

Volatility (1M)

Calculated over the trailing 1-month period

25.03%

2.78%

+22.25%

Volatility (6M)

Calculated over the trailing 6-month period

70.80%

8.90%

+61.90%

Volatility (1Y)

Calculated over the trailing 1-year period

107.94%

11.80%

+96.14%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

97.88%

16.81%

+81.07%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

94.97%

18.00%

+76.97%

Dividends

BFLY vs. VOO - Dividend Comparison

BFLY has not paid dividends to shareholders, while VOO's dividend yield for the trailing twelve months is around 1.02%.

PositionTTM20252024202320222021202020192018201720162015
BFLY
Butterfly Network, Inc.		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		1.02%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

BFLY and VOO have a correlation of 0.48, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

BFLY has higher volatility (25.03%) compared to VOO (2.78%). In terms of maximum drawdown, BFLY dropped -97.40% vs VOO's -33.99%.

VOO currently has the higher Sharpe Ratio (2.44 vs 1.09), 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.

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