ENPH vs. IEF

Last updated Jun 9, 2026

ENPH (Enphase Energy, Inc.) is a stock, while IEF (iShares 7-10 Year Treasury Bond ETF) is Government Bonds fund tracking the ICE U.S. Treasury 7-10 Year Bond Index. Over the past 10 years, ENPH returned 39.56%/yr vs 0.53%/yr for IEF. At a correlation of -0.03, they often move in opposite directions.

Performance

ENPH vs. IEF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Enphase Energy, Inc. (ENPH) and iShares 7-10 Year Treasury Bond ETF (IEF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ENPH achieves a 77.47% return, which is significantly higher than IEF's -1.16% return. Over the past 10 years, ENPH has outperformed IEF with an annualized return of 39.56%, while IEF has yielded a comparatively lower 0.53% annualized return.

ENPH

• 1D: 1.44%
• 1M: 56.05%
• YTD: 77.47%
• 6M: 82.07%
• 1Y: 38.13%
• 3Y*: -31.19%
• 5Y*: -16.12%
• 10Y*: 39.56%

IEF

• 1D: -0.11%
• 1M: -1.19%
• YTD: -1.16%
• 6M: -0.96%
• 1Y: 3.91%
• 3Y*: 2.43%
• 5Y*: -1.34%
• 10Y*: 0.53%

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

ENPH vs. IEF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ENPH Enphase Energy, Inc.	77.47%	-53.33%	-48.02%	-50.13%	44.83%	4.26%	571.53%	452.43%	96.27%	138.61%
IEF iShares 7-10 Year Treasury Bond ETF	-1.16%	8.03%	-0.63%	3.64%	-15.15%	-3.33%	10.01%	8.03%	0.99%	2.55%

Correlation

The correlation between ENPH and IEF is 0.10, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.10
Correlation (3Y) Calculated over the trailing 3-year period	0.17
Correlation (5Y) Calculated over the trailing 5-year period	0.11
Correlation (10Y) Calculated over the trailing 10-year period	0.04
Correlation (All Time) Calculated using the full available price history since Apr 2, 2012	-0.03

The correlation between ENPH and IEF shifts across timeframes, from -0.03 (all time) to 0.17 (3 years), reflecting how their relationship changes across market environments.

Return for Risk

ENPH vs. IEF — Risk / Return Rank

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

ENPH

ENPH Risk / Return Rank: 60
ENPH Sharpe Ratio Rank: 58
ENPH Sortino Ratio Rank: 62
ENPH Omega Ratio Rank: 62
ENPH Calmar Ratio Rank: 61
ENPH Martin Ratio Rank: 59

IEF

IEF Risk / Return Rank: 24
IEF Sharpe Ratio Rank: 26
IEF Sortino Ratio Rank: 25
IEF Omega Ratio Rank: 23
IEF Calmar Ratio Rank: 23
IEF Martin Ratio Rank: 23

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.

ENPH vs. IEF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Enphase Energy, Inc. (ENPH) and iShares 7-10 Year Treasury Bond ETF (IEF). 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.

	ENPH	IEF	Difference
Sharpe ratio: Return per unit of total volatility	0.44	0.84	-0.39
Sortino ratio: Return per unit of downside risk	1.29	1.26	+0.02
Omega ratio: Gain probability vs. loss probability	1.17	1.14	+0.02
Calmar ratio: Return relative to maximum drawdown	0.89	0.96	-0.08
Martin ratio: Return relative to average drawdown	1.60	2.79	-1.19
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ENPH vs. IEF - Sharpe Ratio Comparison

The current ENPH Sharpe Ratio is 0.44, which is lower than the IEF Sharpe Ratio of 0.84. The chart below compares the historical Sharpe Ratios of ENPH and IEF, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	ENPH	IEF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.44	0.84	-0.39
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.23	-0.17	-0.06
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.51	0.08	+0.43
Sharpe Ratio (All Time) Calculated using the full available price history	0.19	0.50	-0.30

Drawdowns

ENPH vs. IEF - Drawdown Comparison

The maximum ENPH drawdown since its inception was -95.97%, which is greater than IEF's maximum drawdown of -23.93%. Use the drawdown chart below to compare losses from any high point for ENPH and IEF.

Drawdown Indicators

	ENPH	IEF	Difference
Max Drawdown Largest peak-to-trough decline	-95.97%	-23.93%	-72.04%
Max Drawdown (1Y) Largest decline over 1 year	-43.13%	-4.07%	-39.06%
Max Drawdown (3Y) Largest decline over 3 years	-86.23%	-7.74%	-78.49%
Max Drawdown (5Y) Largest decline over 5 years	-92.23%	-21.40%	-70.83%
Max Drawdown (10Y) Largest decline over 10 years	-92.23%	-23.93%	-68.30%
Current Drawdown Current decline from peak	-83.07%	-11.80%	-71.27%
Average Drawdown Average peak-to-trough decline	-50.55%	-5.35%	-45.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.87%	1.40%	+22.47%

Volatility

ENPH vs. IEF - Volatility Comparison

Enphase Energy, Inc. (ENPH) has a higher volatility of 39.57% compared to iShares 7-10 Year Treasury Bond ETF (IEF) at 1.51%. This indicates that ENPH's price experiences larger fluctuations and is considered to be riskier than IEF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ENPH	IEF	Difference
Volatility (1M) Calculated over the trailing 1-month period	39.57%	1.51%	+38.06%
Volatility (6M) Calculated over the trailing 6-month period	65.33%	3.36%	+61.97%
Volatility (1Y) Calculated over the trailing 1-year period	86.43%	4.69%	+81.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	70.11%	7.71%	+62.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	78.23%	6.63%	+71.60%

Dividends

ENPH vs. IEF - Dividend Comparison

ENPH has not paid dividends to shareholders, while IEF's dividend yield for the trailing twelve months is around 3.92%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ENPH Enphase Energy, 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%
IEF iShares 7-10 Year Treasury Bond ETF	3.92%	3.77%	3.62%	2.91%	1.96%	0.83%	1.08%	2.08%	2.24%	1.82%	1.81%	1.90%

Frequently Asked Questions

Can I hold both ENPH and IEF in my portfolio?

ENPH and IEF have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ENPH or IEF?

ENPH has higher volatility (39.57%) compared to IEF (1.51%). In terms of maximum drawdown, ENPH dropped -95.97% vs IEF's -23.93%.

Which has better risk-adjusted returns?

IEF currently has the higher Sharpe Ratio (0.84 vs 0.44), 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.