ECO vs. INSW

Last updated Jul 11, 2026

ECO (Okeanis Eco Tankers Corp) and INSW (International Seaways, Inc.) are both stocks. ECO operates in Marine Shipping (Industrials), while INSW operates in Oil & Gas Midstream (Energy). Over the past year, ECO returned 156.80% vs 149.26% for INSW. A 0.74 correlation means they provide meaningful diversification when combined.

Performance

ECO vs. INSW - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Okeanis Eco Tankers Corp (ECO) and International Seaways, Inc. (INSW). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ECO achieves a 73.56% return, which is significantly lower than INSW's 98.85% return.

ECO

• 1D: 5.19%
• 1M: 10.41%
• 6M: 54.36%
• YTD: 73.56%
• 1Y: 156.80%
• 3Y*: —
• 5Y*: —
• 10Y*: —

INSW

• 1D: 6.63%
• 1M: 13.42%
• 6M: 77.43%
• YTD: 98.85%
• 1Y: 149.26%
• 3Y*: 48.58%
• 5Y*: 51.47%
• 10Y*: —

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

ECO vs. INSW - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ECO Okeanis Eco Tankers Corp	73.56%	71.94%	-11.70%	-1.25%
INSW International Seaways, Inc.	98.85%	44.97%	-10.85%	5.74%

Correlation

The correlation between ECO and INSW is 0.75, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.75
Correlation (All Time) Calculated using the full available price history since Dec 8, 2023	0.74

The correlation between ECO and INSW has been stable across timeframes, ranging from 0.74 to 0.75 - a consistent structural relationship.

Fundamentals

Market Cap ECO : $1.80B INSW : $4.38B
EPS ECO : $5.73 INSW : $11.00
PE Ratio ECO : 9.59 INSW : 8.05
PEG Ratio ECO : 0.91 INSW : 1.27
PS Ratio ECO : 3.96 INSW : 6.50
PB Ratio ECO : 2.89 INSW : 2.00
Total Revenue (TTM) ECO : $481.57M INSW : $675.87M
Gross Profit (TTM) ECO : $274.61M INSW : $274.33M
EBITDA (TTM) ECO : $284.05M INSW : $525.75M

Return for Risk

ECO vs. INSW — Risk / Return Rank

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

ECO

ECO Risk / Return Rank: 97
ECO Sharpe Ratio Rank: 98
ECO Sortino Ratio Rank: 97
ECO Omega Ratio Rank: 95
ECO Calmar Ratio Rank: 98
ECO Martin Ratio Rank: 98

INSW

INSW Risk / Return Rank: 98
INSW Sharpe Ratio Rank: 98
INSW Sortino Ratio Rank: 98
INSW Omega Ratio Rank: 96
INSW Calmar Ratio Rank: 98
INSW Martin Ratio Rank: 98

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.

ECO vs. INSW - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Okeanis Eco Tankers Corp (ECO) and International Seaways, Inc. (INSW). 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.

	ECO	INSW	Difference
Sharpe ratio: Return per unit of total volatility	3.96	3.99	-0.03
Sortino ratio: Return per unit of downside risk	4.25	4.53	-0.28
Omega ratio: Gain probability vs. loss probability	1.50	1.54	-0.04
Calmar ratio: Return relative to maximum drawdown	9.25	9.38	-0.13
Martin ratio: Return relative to average drawdown	25.78	25.88	-0.10

ECO vs. INSW - Sharpe Ratio Comparison

The current ECO Sharpe Ratio is 3.96, which is comparable to the INSW Sharpe Ratio of 3.99. The chart below compares the historical Sharpe Ratios of ECO and INSW, 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

ECO vs. INSW - Drawdown Comparison

The maximum ECO drawdown since its inception was -46.15%, smaller than the maximum INSW drawdown of -57.49%. Use the drawdown chart below to compare losses from any high point for ECO and INSW.

Drawdown Indicators

	ECO	INSW	Difference
Max Drawdown Largest peak-to-trough decline	-46.15%	-57.49%	+11.34%
Max Drawdown (1Y) Largest decline over 1 year	-17.66%	-16.16%	-1.50%
Max Drawdown (3Y) Largest decline over 3 years	—	-50.40%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-50.40%	—
Current Drawdown Current decline from peak	-3.00%	-1.67%	-1.33%
Average Drawdown Average peak-to-trough decline	-14.89%	-20.78%	+5.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.33%	5.85%	+0.48%

Volatility

ECO vs. INSW - Volatility Comparison

The current volatility for Okeanis Eco Tankers Corp (ECO) is 15.55%, while International Seaways, Inc. (INSW) has a volatility of 16.78%. This indicates that ECO experiences smaller price fluctuations and is considered to be less risky than INSW based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ECO	INSW	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.55%	16.78%	-1.23%
Volatility (6M) Calculated over the trailing 6-month period	31.07%	29.47%	+1.60%
Volatility (1Y) Calculated over the trailing 1-year period	41.32%	38.18%	+3.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.27%	41.38%	+0.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.27%	45.41%	-3.14%

Dividends

ECO vs. INSW - Dividend Comparison

ECO's dividend yield for the trailing twelve months is around 9.10%, less than INSW's 9.41% yield.

Position	TTM	2025	2024	2023	2022	2021	2020
ECO Okeanis Eco Tankers Corp	9.10%	6.26%	15.57%	0.00%	0.00%	0.00%	0.00%
INSW International Seaways, Inc.	9.41%	6.04%	16.05%	13.83%	3.84%	9.26%	1.47%

Financials

Frequently Asked Questions

Can I hold both ECO and INSW in my portfolio?

ECO and INSW have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ECO or INSW?

INSW has higher volatility (16.78%) compared to ECO (15.55%). In terms of maximum drawdown, ECO dropped -46.15% vs INSW's -57.49%.

Which has better risk-adjusted returns?

INSW currently has the higher Sharpe Ratio (3.99 vs 3.96), 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.