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Investment Fair Value Changes, Net | 12 Months Ended
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Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract] |
Investment Fair Value Changes, Net | Investment Fair Value Changes, Net The following table presents the components of Investment fair value changes, net, recorded in our consolidated statements of income for the years ended December 31, 2017, 2016 and 2015. Table 18.1 – Investment Fair Value Changes
|  | Years Ended December 31,
(In Thousands) |  | 2017 |  | 2016 |  | 2015
Investment Fair Value Changes, Net |  |  |  |  |  |
Changes in fair value of: |  |  |  |  |  |
Residential loans held-for-investment, at Redwood |  | $ | (5,765 | ) |  | $ | (23,102 | ) |  | $ | (6,337 | )
Trading securities |  | 39,526 |  |  | 9,666 |  |  | (2,019 | )
Net investments in Legacy Sequoia entities (1) |  | (8,027 | ) |  | (4,200 | ) |  | (1,192 | )
Net investments in Sequoia Choice entities (1) |  | (323 | ) |  | — |  |  | — |
Risk-sharing investments |  | (1,484 | ) |  | (1,151 | ) |  | (1,886 | )
Risk management derivatives, net |  | (12,842 | ) |  | (9,112 | ) |  | (9,677 | )
Valuation adjustments on commercial loans held-for-sale |  | 300 |  |  | (307 | ) |  | — |
Impairments on AFS securities |  | (1,011 | ) |  | (368 | ) |  | (246 | )
Investment Fair Value Changes, Net |  | $ | 10,374 |  |  | $ | (28,574 | ) |  | $ | (21,357 | )
(1) | Includes changes in fair value of the residential loans held-for-sale, REO and the ABS issued at the entities, which netted together represent the change in value of our retained investments at the consolidated VIEs.

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