INSW vs. ECO

Last updated Jul 11, 2026

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

Performance

INSW vs. ECO - Performance Comparison

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

Returns By Period

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

INSW

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

ECO

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

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

INSW vs. ECO - Yearly Performance Comparison

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

Correlation

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

Fundamentals

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

Return for Risk

INSW vs. ECO — Risk / Return Rank

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

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

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

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.

INSW vs. ECO - Risk-Adjusted Trends Comparison

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

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

INSW vs. ECO - Sharpe Ratio Comparison

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

INSW vs. ECO - Drawdown Comparison

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

Drawdown Indicators

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

Volatility

INSW vs. ECO - Volatility Comparison

International Seaways, Inc. (INSW) has a higher volatility of 16.78% compared to Okeanis Eco Tankers Corp (ECO) at 15.55%. This indicates that INSW's price experiences larger fluctuations and is considered to be riskier than ECO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

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

Dividends

INSW vs. ECO - Dividend Comparison

INSW's dividend yield for the trailing twelve months is around 9.41%, more than ECO's 9.10% 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 INSW and ECO in my portfolio?

INSW and ECO 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, INSW or ECO?

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

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.