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CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Interest Income |  |  |  |
Residential loans | $ 48,433 | $ 54,974 | $ 92,088 | $ 134,410
Business purpose loans | 70,323 | 53,419 | 134,511 | 106,073
Multifamily loans | 4,860 | 4,870 | 9,646 | 45,042
Real estate securities | 9,279 | 10,027 | 18,942 | 28,336
Other interest income | 5,800 | 6,656 | 11,813 | 14,166
Total interest income | 138,695 | 129,946 | 267,000 | 328,027
Interest Expense |  |  |  |
Short-term debt | (11,195) | (16,907) | (18,968) | (39,974)
Asset-backed securities issued | (76,419) | (65,304) | (148,980) | (165,802)
Long-term debt | (20,451) | (20,455) | (42,669) | (43,561)
Total interest expense | (108,065) | (102,666) | (210,617) | (249,337)
Net Interest Income | 30,630 | 27,280 | 56,383 | 78,690
Non-interest Income (Loss) |  |  |  |
Mortgage banking activities, net | 54,419 | (5,982) | 137,026 | (34,884)
Investment fair value changes, net | 49,480 | 152,228 | 94,567 | (718,604)
Other income, net | 2,126 | 1,165 | 5,969 | 4,093
Realized gains, net | 8,384 | 25,965 | 11,100 | 29,817
Total non-interest income (loss), net | 114,409 | 173,376 | 248,662 | (719,578)
General and administrative expenses | (40,594) | (28,520) | (84,145) | (57,202)
Loan acquisition costs | (3,748) | (1,572) | (7,307) | (5,558)
Other expenses | (3,985) | (5,083) | (8,081) | (96,498)
Net Income (Loss) before (Provision for) Benefit from Income Taxes | 96,712 | 165,481 | 205,512 | (800,146)
(Provision for) benefit from income taxes | (6,687) | (37) | (18,230) | 22,192
Net Income (Loss) | $ 90,025 | $ 165,444 | $ 187,282 | $ (777,954)
Basic earnings (loss) per common share (in dollars per share) | $ 0.77 | $ 1.41 | $ 1.61 | $ (6.82)
Diluted earnings (loss) per common share (in dollars per share) | $ 0.66 | $ 1.00 | $ 1.38 | $ (6.82)
Basic weighted average shares outstanding (in shares) | 112,921,070 | 114,383,289 | 112,337,984 | 114,229,928
Diluted weighted average shares outstanding (in shares) | 141,761,084 | 147,099,079 | 141,139,212 | 114,229,928

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