CMDB vs SBLK vs GNK vs SB vs NMM

For growth investors, Costamare Bulkers Holdings Ltd (CMDB) is the stronger pick with 80.

3% revenue growth year-over-year, versus -19. 1% for Genco Shipping & Trading Limited (GNK). 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 Star Bulk Carriers Corp. (SBLK) a "Buy" — based on 24 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.

Over the past 5 years, Navios Maritime Partners L.

P. (NMM) delivered a total return of +120. 5%, compared to +39. 0% for Costamare Bulkers Holdings Ltd (CMDB). Over 10 years, the gap is even starker: SBLK returned +977. 3% versus CMDB's +39. 0%. 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), Navios Maritime Partners L.

P. (NMM) is the lower-risk stock at 0. 72β versus Costamare Bulkers Holdings Ltd's 1. 04β — meaning CMDB is approximately 44% more volatile than NMM relative to the S&P 500. On balance sheet safety, Genco Shipping & Trading Limited (GNK) carries a lower debt/equity ratio of 22% versus 169% for Costamare Bulkers Holdings Ltd — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Costamare Bulkers Holdings Ltd (CMDB) is pulling ahead at 80.

3% versus -19. 1% for Genco Shipping & Trading Limited (GNK). On earnings-per-share growth, the picture is similar: Safe Bulkers, Inc. grew EPS 36. 1% year-over-year, compared to -105. 7% for Genco Shipping & Trading Limited. 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.

Safe Bulkers, Inc.

(SB) is the more profitable company, earning 31. 7% net margin versus -8. 2% for Costamare Bulkers Holdings Ltd — meaning it keeps 31. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SB leads at 36. 4% versus -2. 8% for CMDB. 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.

On forward earnings alone, Navios Maritime Partners L.

P. (NMM) trades at 4. 8x forward P/E versus 14. 9x for Genco Shipping & Trading Limited — 10. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for NMM: 18. 8% to $85. 00.

In this comparison, SB (4.

0% yield), GNK (3. 0% yield), SBLK (1. 1% yield), NMM (0. 3% yield) pay a dividend. CMDB does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Star Bulk Carriers Corp.

(SBLK) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 73), 1. 1% yield, +977. 3% 10Y return). Both have compounded well over 10 years (SBLK: +977. 3%, CMDB: +39. 0%), 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.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: CMDB is a small-cap high-growth stock; SBLK is a small-cap quality compounder stock; GNK is a small-cap income-oriented stock; SB is a small-cap deep-value stock; NMM is a small-cap deep-value stock. SBLK, GNK, SB pay a dividend while CMDB, NMM do 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.