FDUS vs CSWC vs ARCC vs GAIN vs GBDC

For growth investors, Golub Capital BDC, Inc.

(GBDC) is the stronger pick with 42. 5% revenue growth year-over-year, versus -12. 9% for Gladstone Investment Corporation (GAIN). Fidus Investment Corporation (FDUS) offers the better valuation at 8. 0x trailing P/E (9. 2x forward), making it the more compelling value choice. Analysts rate Fidus Investment Corporation (FDUS) a "Buy" — based on 12 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, Fidus Investment Corporation (FDUS) is the cheapest at 8.

0x versus Capital Southwest Corporation at 16. 3x. On forward P/E, Golub Capital BDC, Inc. is actually cheaper at 9. 2x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Golub Capital BDC, Inc. wins at 0. 30x versus Ares Capital Corporation's 0. 96x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Gladstone Investment Corporation (GAIN) delivered a total return of +72.

0%, compared to +33. 2% for Golub Capital BDC, Inc. (GBDC). Over 10 years, the gap is even starker: GAIN returned +319. 3% versus GBDC's +61. 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), Gladstone Investment Corporation (GAIN) is the lower-risk stock at 0.

53β versus Capital Southwest Corporation's 0. 84β — meaning CSWC is approximately 56% more volatile than GAIN relative to the S&P 500. On balance sheet safety, Fidus Investment Corporation (FDUS) carries a lower debt/equity ratio of 31% versus 123% for Golub Capital BDC, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Golub Capital BDC, Inc.

(GBDC) is pulling ahead at 42. 5% versus -12. 9% for Gladstone Investment Corporation (GAIN). On earnings-per-share growth, the picture is similar: Golub Capital BDC, Inc. grew EPS 4. 4% year-over-year, compared to -28. 3% for Capital Southwest Corporation. 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.

Gladstone Investment Corporation (GAIN) is the more profitable company, earning 72.

7% net margin versus 41. 3% for Ares Capital Corporation — meaning it keeps 72. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: GBDC leads at 78. 9% versus 48. 5% for CSWC. At the gross margin level — before operating expenses — GBDC leads at 81. 5%, 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, Golub Capital BDC, Inc. (GBDC) is the more undervalued stock at a PEG of 0. 30x versus Ares Capital Corporation's 0. 96x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Golub Capital BDC, Inc. (GBDC) trades at 9. 2x forward P/E versus 40. 7x for Gladstone Investment Corporation — 31. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ARCC: 15. 4% to $21. 88.

All stocks in this comparison pay dividends.

Fidus Investment Corporation (FDUS) offers the highest yield at 11. 5%, versus 2. 0% for Ares Capital Corporation (ARCC).

For long-horizon retirement investors, Gladstone Investment Corporation (GAIN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

53), 10. 0% yield, +319. 3% 10Y return). Both have compounded well over 10 years (GAIN: +319. 3%, ARCC: +139. 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.

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

In terms of investment character: FDUS is a small-cap high-growth stock; CSWC is a small-cap deep-value stock; ARCC is a mid-cap high-growth stock; GAIN is a small-cap deep-value stock; GBDC is a small-cap high-growth stock. 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.