International Seaways (INSW) has drawn investor attention after a strong year-to-date share move, with the stock up 96.7% in 2026. That performance contrasts with more subdued recent trading.

Short term momentum for International Seaways has cooled, with the share price slipping 0.9% over the past day and 3.9% over the past week. Even so, its year to date share price return of 96.7% and very large 5 year total shareholder return point to a stock that has already rewarded patient holders.

If you are weighing International Seaways against other opportunities in energy and infrastructure, it could be worth seeing which companies are also attracting attention through our 36 power grid technology and infrastructure stocks

After a near doubling in 2026, International Seaways still trades below the average analyst price target and at a discount to some intrinsic value estimates. Is the market simply cautious, or fairly questioning how sustainable that surge is?

Most Popular Narrative: 6.3% Undervalued

International Seaways is trading at $92.41, compared with a fair value of $98.67 in the most followed narrative. That gap sits on top of strong recent returns.

The company's strategy of renewing and modernizing its fleet, including the acquisition of newbuild eco-vessels and selling older tonnage, positions it to benefit from stricter environmental regulations, reducing operating costs and supporting sustained or improved net margins.
Tightening supply fundamentals are anticipated, as the orderbook fails to keep pace with required fleet replacement. By 2029, nearly 50% of the global fleet will be over 20 years old and likely to be excluded from commercial trade, which could drive up vessel charter rates and future earnings.

Want to see what is baked into that fair value for International Seaways. The core of this narrative is falling revenue, slimmer margins and a richer future earnings multiple than the sector usually carries.

Result: Fair Value of $98.67 (UNDERVALUED)

However, International Seaways also faces risks from a potential long term decline in fossil fuel demand and higher environmental compliance costs, which could pressure future margins and cash flows.

Another View on International Seaways Valuation

The most followed narrative sees International Seaways as about 6.3% undervalued at $92.41 versus a fair value of $98.67. A different lens tells another story. The Simply Wall St DCF model puts fair value closer to $57.37, which would frame the stock as richly valued instead.

This gap between a narrative based on 2029 earnings assumptions and a cash flow driven estimate leaves investors with a clear question: Which set of assumptions feels closer to how International Seaways will actually deploy its fleet and cash flows over time?

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out International Seaways for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 49 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

If the mixed signals around International Seaways leave you uncertain, that is the point where your own work matters most. Take a closer look at the balance of potential downside and upside by reviewing the 3 key rewards and 4 important warning signs

Looking for more investment ideas beyond International Seaways?

If you want a broader view than International Seaways alone, you can use these focused stock ideas to keep building your watchlist before the next move catches you off guard.

• Target potential bargains by scanning companies that combine solid fundamentals with discounted prices through our 49 high quality undervalued stocks.
• Strengthen your income stream by focusing on companies offering reliable and higher yielding payouts using the 8 dividend fortresses.
• Reduce portfolio shocks by concentrating on companies that score well on stability and risk controls inside the 78 resilient stocks with low risk scores.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.