NMM vs TNK vs SBLK vs INSW

For growth investors, Navios Maritime Partners L.

P. (NMM) is the stronger pick with 2. 1% revenue growth year-over-year, versus -22. 6% for Teekay Tankers Ltd. (TNK). Navios Maritime Partners L. P. (NMM) offers the better valuation at 6. 0x trailing P/E (4. 8x forward), making it the more compelling value choice. Analysts rate Teekay Tankers Ltd. (TNK) a "Buy" — based on 23 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Navios Maritime Partners L.

P. (NMM) is the cheapest at 6. 0x versus Star Bulk Carriers Corp. at 36. 7x. On forward P/E, Navios Maritime Partners L. P. is actually cheaper at 4. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Star Bulk Carriers Corp. wins at 0. 16x versus Teekay Tankers Ltd. 's 0. 19x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Teekay Tankers Ltd.

(TNK) delivered a total return of +513. 8%, compared to +79. 1% for Star Bulk Carriers Corp. (SBLK). Over 10 years, the gap is even starker: INSW returned +1015% versus TNK's +187. 7%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Teekay Tankers Ltd.

(TNK) is the lower-risk stock at 0. 35β versus Star Bulk Carriers Corp. 's 0. 73β — meaning SBLK is approximately 109% more volatile than TNK relative to the S&P 500. On balance sheet safety, Teekay Tankers Ltd. (TNK) carries a lower debt/equity ratio of 3% versus 46% for Navios Maritime Partners L. P. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Navios Maritime Partners L.

P. (NMM) is pulling ahead at 2. 1% versus -22. 6% for Teekay Tankers Ltd. (TNK). On earnings-per-share growth, the picture is similar: Teekay Tankers Ltd. grew EPS -13. 0% year-over-year, compared to -73. 9% for Star Bulk Carriers Corp.. Over a 3-year CAGR, NMM leads at 23. 2% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Teekay Tankers Ltd.

(TNK) is the more profitable company, earning 36. 9% net margin versus 8. 1% for Star Bulk Carriers Corp. — meaning it keeps 36. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: INSW leads at 36. 3% versus 13. 5% for SBLK. At the gross margin level — before operating expenses — NMM leads at 66. 1%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Star Bulk Carriers Corp. (SBLK) is the more undervalued stock at a PEG of 0. 16x versus Teekay Tankers Ltd. 's 0. 19x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Navios Maritime Partners L. P. (NMM) trades at 4. 8x forward P/E versus 8. 5x for International Seaways, Inc. — 3. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for NMM: 18. 8% to $85. 00.

All stocks in this comparison pay dividends.

International Seaways, Inc. (INSW) offers the highest yield at 3. 2%, versus 0. 3% for Navios Maritime Partners L. P. (NMM).

For long-horizon retirement investors, International Seaways, Inc.

(INSW) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 43), 3. 2% yield, +1015% 10Y return). Both have compounded well over 10 years (INSW: +1015%, NMM: +267. 2%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

These companies operate in different sectors (NMM (Industrials) and TNK (Energy) and SBLK (Industrials) and INSW (Energy)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: NMM is a small-cap deep-value stock; TNK is a small-cap deep-value stock; SBLK is a small-cap quality compounder stock; INSW is a small-cap deep-value stock. TNK, SBLK, INSW pay a dividend while NMM does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.