Group 1: Ellington Financial Preferred Shares - EFC-B trades at $22.75 while EFC-C trades at $24.84, indicating a $2.09 difference that may not be justified given EFC-C's higher coupon rate of 8.625% compared to EFC-B's 6.25% [3][4] - EFC-C pays an additional $0.595 per share annually, amounting to $0.8925 over the next 18 months, while EFC-B may have a higher coupon rate if the 5-year Treasury rate exceeds 3.64% [4][5] - EFC-D has a fixed coupon rate of 7% and trades at $23.10, with a stripped yield of approximately 7.62%, which is low for a fixed-rate share from a mortgage REIT [7][8] Group 2: Main Street Capital - Main Street Capital consistently increases its Net Asset Value (NAV) per share while providing an attractive dividend, trading at nearly twice its trailing book value per share [11][12] - The ability to issue shares at a premium enhances book value per share and drives earnings growth, creating a favorable cycle for the company [12][13] - Despite being an outstanding BDC, the current share price is considered too expensive, as the valuation may not be sustainable without the ability to issue shares at high prices [13]