Comprehensive ranking of all publicly traded BDCs by portfolio size, position count, and borrower diversification
Published by GP Stakes, the private markets intelligence platform
The Business Development Company market has matured into a significant segment of the publicly traded credit universe. With 38 BDCs managing a combined $26.9B in fair value across 23,238 individual positions, the sector provides meaningful exposure to middle-market private credit.
This ranking provides a clear view of relative portfolio size across the BDC universe. The dispersion between the largest and smallest BDCs is significant, with top-tier managers commanding portfolios many multiples larger than their smaller peers. This scale differential has important implications for borrower access, fee efficiency, and portfolio diversification.
We also include a diversification analysis using a modified Herfindahl-Hirschman Index (HHI) to identify which BDCs maintain the most granular borrower exposure. Lower HHI scores indicate greater portfolio diversification, which may provide more resilience during credit stress events.
| Rank | BDC | Ticker | Total Fair Value | Total Par | Positions | Borrowers | Avg Position |
|---|---|---|---|---|---|---|---|
| 1 | Stellus Capital Investment Corp | SCM | $9.2B | N/A | 1,608 | 304 | $7.2M |
| 2 | Saratoga Investment Corp | SAR | $3.9B | $1.9B | 1,324 | 355 | $3.1M |
| 3 | BlackRock TCP Capital Corp | TCPC | $3.6B | N/A | 401 | 205 | $297.4M |
| 4 | Oxford Square Capital Corp | OXSQ | $3.1B | N/A | 181 | 164 | $22.0M |
| 5 | FS KKR Capital Corp | FSK | $2.6B | $2.0B | 1,350 | 405 | $3.5M |
| 6 | SuRo Capital Corp | SSSS | $2.5B | $623.0M | 476 | 176 | $8.3M |
| 7 | BlackRock Capital Investment Corp | BKCC | $1.8B | $166 | 157 | 135 | $218.8M |
| 8 | Owl Rock Capital Corp | ORCC | $43.8M | $138.7M | 971 | 901 | $118K |
| 9 | Bain Capital Specialty Finance Inc | BCSF | $24.9M | $5.0M | 1,435 | 569 | $20K |
| 10 | Blackstone Secured Lending Fund | BXSL | $23.0M | N/A | 1,516 | 552 | $24K |
| 11 | Prospect Capital Corp | PSEC | $12.4M | $12.5M | 485 | 221 | $41K |
| 12 | Hercules Capital Inc | HTGC | $12.3M | $12.5M | 640 | 461 | $224K |
| 13 | Oaktree Specialty Lending Corp | OCSL | $11.0M | $3.9M | 688 | 277 | $20K |
| 14 | Golub Capital BDC Inc | GBDC | $9.2M | $150.45 | 102 | 31 | $243K |
| 15 | CION Investment Corp | CION | $7.6M | $153.7M | 628 | 471 | $81K |
| 16 | Goldman Sachs BDC Inc | GSBD | $6.9M | N/A | 1,007 | 265 | $7K |
| 17 | Barings BDC Inc | BBDC | $6.9M | $9.4M | 1,143 | 540 | $109K |
| 18 | MidCap Financial Investment Corp | MFIC | $3.9M | $26.7M | 426 | 233 | $9K |
| 19 | SLR Investment Corp | SLRC | $3.7M | N/A | 82 | 23 | $54K |
| 20 | Capital Southwest Corp | CSWC | $3.3M | $69K | 432 | 227 | $11K |
| 21 | Main Street Capital Corp | MAIN | $3.2M | N/A | 457 | 287 | $21K |
| 22 | PennantPark Floating Rate Capital Ltd | PFLT | $2.9M | $289.5M | 974 | 859 | $12K |
| 23 | Carlyle Secured Lending Inc | CGBD | $2.7M | $80.1M | 775 | 250 | $45K |
| 24 | TriplePoint Venture Growth BDC Corp | TPVG | $2.3M | $765K | 426 | 330 | $20K |
| 25 | PennantPark Investment Corp | PNNT | $2.1M | $67.4M | 863 | 752 | $5K |
| 26 | New Mountain Finance Corp | NMFC | $1.9M | $123.5M | 860 | 215 | $48K |
| 27 | Horizon Technology Finance Corp | HRZN | $1.9M | $160K | 101 | 70 | $20K |
| 28 | Monroe Capital Corp | MRCC | $1.3M | $976K | 630 | 359 | $6K |
| 29 | Fidus Investment Corp | FDUS | $761K | $277K | 42 | 13 | $24K |
| 30 | Logan Ridge Finance Corp | LRFC | $677K | $315K | 133 | 106 | $28K |
| 31 | Great Elm Capital Corp | GECC | $201K | $1.7M | 170 | 128 | $25K |
| 32 | Gladstone Investment Corp | GAIN | $156K | $2.7M | 150 | 143 | $14K |
| 33 | Trinity Capital Inc | TRIN | $40K | N/A | 395 | 313 | $318 |
| 34 | Gladstone Capital Corp | GLAD | $13K | $56.0M | 270 | 255 | $2K |
| 35 | Ares Capital Corp | ARCC | $4K | $13K | 663 | 658 | $327 |
| 36 | WhiteHorse Finance Inc | WHF | $3K | $1.9M | 541 | 412 | $3K |
| 37 | Crescent Capital BDC Inc | CCAP | $469.5 | N/A | 736 | 355 | $1 |
BDCs ranked by portfolio concentration using the Herfindahl-Hirschman Index. Lower scores indicate greater diversification.
| BDC | Borrowers | Total Fair Value | HHI Score |
|---|---|---|---|
| Goldman Sachs BDC Inc | 230 | $6.9M | 88 |
| MidCap Financial Investment Corp | 230 | $3.9M | 88 |
| Blackstone Secured Lending Fund | 434 | $23.0M | 93 |
| PennantPark Floating Rate Capital Ltd | 226 | $2.9M | 152 |
| PennantPark Investment Corp | 347 | $2.1M | 182 |
| TriplePoint Venture Growth BDC Corp | 86 | $2.3M | 344 |
| Prospect Capital Corp | 145 | $12.4M | 439 |
| Trinity Capital Inc | 126 | $40K | 612 |
| Oxford Square Capital Corp | 130 | $3.1B | 791 |
| Bain Capital Specialty Finance Inc | 494 | $24.9M | 928 |
| New Mountain Finance Corp | 23 | $1.9M | 1,012 |
| Saratoga Investment Corp | 345 | $3.9B | 1,264 |
| Hercules Capital Inc | 47 | $12.3M | 1,270 |
| FS KKR Capital Corp | 316 | $2.6B | 1,425 |
| Oaktree Specialty Lending Corp | 217 | $11.0M | 1,487 |
| Crescent Capital BDC Inc | 207 | $469.5 | 1,487 |
| Barings BDC Inc | 58 | $6.9M | 1,656 |
| SLR Investment Corp | 20 | $3.7M | 1,670 |
| SuRo Capital Corp | 90 | $2.5B | 1,695 |
| Logan Ridge Finance Corp | 11 | $677K | 1,818 |
Portfolio size is not the only metric that matters when evaluating BDCs. The number of distinct borrowers, average position size, and sector diversification all contribute to the risk profile. Larger BDCs typically benefit from better access to deal flow, lower unit costs, and stronger relationships with private equity sponsors who generate much of the middle-market lending opportunity set.
Smaller BDCs may offer more specialized sector focus or geographic concentration that can generate higher yields. However, they also face higher concentration risk and may struggle to compete for the most attractive credits in a competitive market. Understanding where each BDC sits on this spectrum is fundamental to building a well-constructed private credit allocation.
Rankings are based on aggregate fair value from the most recent SEC filing (10-K or 10-Q) for each BDC. Position counts include all line items from the Schedule of Investments. The HHI is calculated as the sum of squared portfolio weight percentages for each borrower, where 10,000 would indicate a single-borrower portfolio. Data updates automatically as new filings are processed.
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Last updated: 3 February 2026