FSLR vs. ENPH

Last updated Apr 1, 2026

Compare and contrast key facts about First Solar, Inc. (FSLR) and Enphase Energy, Inc. (ENPH).

Performance

FSLR vs. ENPH - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in First Solar, Inc. (FSLR) and Enphase Energy, Inc. (ENPH). The values are adjusted to include any dividend payments, if applicable.

FSLR vs. ENPH - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FSLR First Solar, Inc.	-24.49%	48.22%	2.30%	15.01%	71.86%	-11.89%	76.77%	31.81%	-37.12%	110.41%
ENPH Enphase Energy, Inc.	17.97%	-53.33%	-48.02%	-50.13%	44.83%	4.26%	571.53%	452.43%	96.27%	138.61%

Fundamentals

Market Cap FSLR : $21.24B ENPH : $5.05B
EPS FSLR : $14.21 ENPH : $1.29
PE Ratio FSLR : 13.88 ENPH : 29.41
PEG Ratio FSLR : 0.33 ENPH : 0.67
PS Ratio FSLR : 4.06 ENPH : 3.44
PB Ratio FSLR : 2.23 ENPH : 4.64
Total Revenue (TTM) FSLR : $5.22B ENPH : $1.47B
Gross Profit (TTM) FSLR : $2.12B ENPH : $687.00M
EBITDA (TTM) FSLR : $2.00B ENPH : $250.47M

Returns By Period

In the year-to-date period, FSLR achieves a -24.49% return, which is significantly lower than ENPH's 17.97% return. Over the past 10 years, FSLR has underperformed ENPH with an annualized return of 11.32%, while ENPH has yielded a comparatively higher 31.80% annualized return.

FSLR

• 1D: 6.80%
• 1M: 0.03%
• YTD: -24.49%
• 6M: -10.55%
• 1Y: 56.02%
• 3Y*: -3.20%
• 5Y*: 18.02%
• 10Y*: 11.32%

ENPH

• 1D: 6.09%
• 1M: -10.55%
• YTD: 17.97%
• 6M: 6.84%
• 1Y: -39.07%
• 3Y*: -43.56%
• 5Y*: -25.31%
• 10Y*: 31.80%

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

Return for Risk

FSLR vs. ENPH — Risk / Return Rank

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

FSLR

FSLR Risk / Return Rank: 72
FSLR Sharpe Ratio Rank: 73
FSLR Sortino Ratio Rank: 71
FSLR Omega Ratio Rank: 70
FSLR Calmar Ratio Rank: 73
FSLR Martin Ratio Rank: 73

ENPH

ENPH Risk / Return Rank: 23
ENPH Sharpe Ratio Rank: 21
ENPH Sortino Ratio Rank: 24
ENPH Omega Ratio Rank: 24
ENPH Calmar Ratio Rank: 20
ENPH Martin Ratio Rank: 25

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.

FSLR vs. ENPH - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for First Solar, Inc. (FSLR) and Enphase Energy, Inc. (ENPH). 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.

	FSLR	ENPH	Difference
Sharpe ratio Return per unit of total volatility	0.88	-0.47	+1.36
Sortino ratio Return per unit of downside risk	1.58	-0.28	+1.86
Omega ratio Gain probability vs. loss probability	1.21	0.96	+0.25
Calmar ratio Return relative to maximum drawdown	1.57	-0.66	+2.23
Martin ratio Return relative to average drawdown	3.83	-1.00	+4.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FSLR vs. ENPH - Sharpe Ratio Comparison

The current FSLR Sharpe Ratio is 0.88, which is higher than the ENPH Sharpe Ratio of -0.47. The chart below compares the historical Sharpe Ratios of FSLR and ENPH, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FSLR	ENPH	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.88	-0.47	+1.36
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.34	-0.37	+0.71
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.23	0.41	-0.19
Sharpe Ratio (All Time) Calculated using the full available price history	0.19	0.16	+0.03

Correlation

The correlation between FSLR and ENPH is 0.47, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

FSLR vs. ENPH - Dividend Comparison

Neither FSLR nor ENPH has paid dividends to shareholders.

Tickers have no history of dividend payments

Drawdowns

FSLR vs. ENPH - Drawdown Comparison

The maximum FSLR drawdown since its inception was -96.22%, roughly equal to the maximum ENPH drawdown of -95.97%. Use the drawdown chart below to compare losses from any high point for FSLR and ENPH.

Drawdown Indicators

	FSLR	ENPH	Difference
Max Drawdown Largest peak-to-trough decline	-96.22%	-95.97%	-0.25%
Max Drawdown (1Y) Largest decline over 1 year	-35.10%	-58.22%	+23.12%
Max Drawdown (5Y) Largest decline over 5 years	-59.97%	-92.23%	+32.26%
Max Drawdown (10Y) Largest decline over 10 years	-61.26%	-92.23%	+30.97%
Current Drawdown Current decline from peak	-36.60%	-88.75%	+52.15%
Average Drawdown Average peak-to-trough decline	-63.60%	-50.06%	-13.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.34%	38.75%	-24.41%

Volatility

FSLR vs. ENPH - Volatility Comparison

The current volatility for First Solar, Inc. (FSLR) is 11.39%, while Enphase Energy, Inc. (ENPH) has a volatility of 18.83%. This indicates that FSLR experiences smaller price fluctuations and is considered to be less risky than ENPH based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FSLR	ENPH	Difference
Volatility (1M) Calculated over the trailing 1-month period	11.39%	18.83%	-7.44%
Volatility (6M) Calculated over the trailing 6-month period	39.09%	55.24%	-16.15%
Volatility (1Y) Calculated over the trailing 1-year period	63.72%	82.78%	-19.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	53.41%	68.17%	-14.76%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	50.36%	77.54%	-27.18%

Financials

FSLR vs. ENPH - Profitability Comparison

The chart below illustrates the profitability comparison between First Solar, Inc. and Enphase Energy, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

FSLR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, First Solar, Inc. reported a gross profit of 665.34M and revenue of 1.68B. Therefore, the gross margin over that period was 39.5%.

ENPH - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Enphase Energy, Inc. reported a gross profit of 152.03M and revenue of 343.32M. Therefore, the gross margin over that period was 44.3%.

FSLR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, First Solar, Inc. reported an operating income of 547.92M and revenue of 1.68B, resulting in an operating margin of 32.6%.

ENPH - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Enphase Energy, Inc. reported an operating income of 22.44M and revenue of 343.32M, resulting in an operating margin of 6.5%.

FSLR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, First Solar, Inc. reported a net income of 520.88M and revenue of 1.68B, resulting in a net margin of 31.0%.

ENPH - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Enphase Energy, Inc. reported a net income of 38.71M and revenue of 343.32M, resulting in a net margin of 11.3%.