Included in Note 3 to the Consolidated Financial Statements of our Annual Report on Form 10-K for the year ended December 31, 2020 is a summary of our significant accounting policies. Provided below is a summary of additional accounting policies that are significant to the company's consolidated financial position and results of operations for the three and six months ended June 30, 2021.

We have made and may make additional strategic investments in companies through our RWT Horizons venture investment strategy or at a corporate level. These investments can take the form of equity or debt and often have conversion features. Depending on the terms of the investments, we may account for these investments under the fair value option or as non-marketable equity securities under the equity method of accounting or the measurement alternative (to the extent they do not have a “readily determinable fair value,” or are not traded in a verifiable public market or are restricted for sale in the public market by a restricted stock legend or otherwise).

Investments accounted for under the fair value option are carried at fair value with periodic changes in value recorded through Investment fair value changes on our consolidated statements of income (loss). For non-marketable securities, we utilize the equity method of accounting when we are able to exert significant influence over but do not control the activities of the investee. Under the equity method of accounting, we generally elect to record our share of earnings or losses from equity method investments on a one-quarter lag and we assess our investments for impairment whenever events or changes in circumstances indicate that the carrying amount of our investment might not be recoverable. Income from equity method investments is recorded in Other income, net on our consolidated statements of income (loss). Under the measurement alternative, the carrying value of our investment is measured at cost, less any impairment, plus or minus changes resulting from observable price changes in orderly transactions for the identical or a similar investment of the same issuer. Adjustments are determined primarily based on a market approach as of the transaction date and are recorded as a component of Other income, net on our consolidated statements of income (loss).

In October 2020, the FASB issued ASU 2020-10, "Codification Improvements." This new guidance updates various codification topics by clarifying or improving disclosure requirements. This new guidance is effective for fiscal years ending after December 15, 2020. We adopted this guidance, as required, in the first quarter of 2021, which did not have a material impact on our consolidated financial statements.

In October 2020, the FASB issued ASU 2020-09, "Debt (Topic 470): Amendments to SEC Paragraphs Pursuant to SEC Release No. 33-10762." This new guidance aligns certain SEC paragraphs in the codification with new SEC rules issued in March 2020 related to changes to the disclosure requirements for registered debt securities. This new guidance became effective January 4, 2021. We adopted this guidance, as required, in the first quarter of 2021, which did not have a material impact on our consolidated financial statements.

In October 2020, the FASB issued ASU 2020-08, "Codification Improvements to Subtopic 310-20, Receivables - Nonrefundable Fees and Other Costs." This new guidance clarifies that an entity should reevaluate whether a callable debt security is within the scope of paragraph 310-20-35-33 for each reporting period. This new guidance is effective for fiscal years ending after December 15, 2020. We adopted this guidance, as required, in the first quarter of 2021, which did not have a material impact on our consolidated financial statements.

In January 2020, the FASB issued ASU 2020-01, "Investments - Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815)." This new guidance clarifies the interaction of the accounting for equity securities, equity method investments, and certain forward contracts and purchased options. This new guidance is effective for fiscal years beginning after December 15, 2020. We adopted this guidance, as required, in the first quarter of 2021, which did not have a material impact on our consolidated financial statements.

In December 2019, the FASB issued ASU 2019-12, "Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes." This new guidance simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740 and by clarifying and amending existing guidance. This new guidance is effective for fiscal years beginning after December 15, 2020. We adopted this guidance, as required, in the first quarter of 2021, which did not have a material impact on our consolidated financial statements.

In August 2020, the FASB issued ASU 2020-06, "Debt - Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging - Contracts in Entity's Own Equity (Subtopic 815-40)." This new guidance simplifies the accounting for convertible debt by reducing the number of accounting models to separately present certain conversion features in equity. This new guidance is effective for fiscal years beginning after December 31, 2021. Early adoption is permitted. We plan to adopt this new guidance by the required date and do not anticipate that this update will have a material impact on our consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, "Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting." This new guidance provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. In January 2021, the FASB issued ASU 2021-01, "Reference Rate Reform (Topic 848): Scope." This new guidance clarifies that certain optional expedients and exceptions in Topic 848 for contract modifications and hedge accounting apply to derivatives that are affected by the discounting transition. This new guidance is effective for all entities as of March 12, 2020 through December 31, 2022. We are currently evaluating the impact the adoption of this standard would have on our consolidated financial statements. Through June 30, 2021, we have not elected to apply the optional expedients and exceptions to any of our existing contracts, hedging relationships, or other transactions.

Certain of our derivatives and short-term debt are subject to master netting arrangements or similar agreements. Under GAAP, in certain circumstances we may elect to present certain financial assets, liabilities and related collateral subject to master netting arrangements in a net position on our consolidated balance sheets. However, we do not report any of these financial assets or liabilities on a net basis, and instead present them on a gross basis on our consolidated balance sheets.

The table below presents financial assets and liabilities that are subject to master netting arrangements or similar agreements categorized by financial instrument, together with corresponding financial instruments and corresponding collateral received or pledged at June 30, 2021 and December 31, 2020.


	Gross Amounts of Recognized Assets (Liabilities)		Gross Amounts Offset in Consolidated Balance Sheet		Net Amounts of Assets (Liabilities) Presented in Consolidated Balance Sheet		Gross Amounts Not Offset in Consolidated Balance Sheet (1)				Net Amount
June 30, 2021 (In Thousands)							Financial Instruments		Cash Collateral (Received) Pledged
Assets (2)
Interest rate agreements	$	17,746	$	—	$	17,746	$	(957)	$	(11,238)	$	5,551

TBAs	2,064		—		2,064		(478)		(1,393)		193
Futures	304		—		304		(194)		—		110
Total Assets	$	20,114	$	—	$	20,114	$	(1,629)	$	(12,631)	$	5,854

Liabilities (2)
Interest rate agreements	$	(957)	$	—	$	(957)	$	957	$	—	$	—
TBAs	(1,367)		—		(1,367)		478		889		—
Futures	(194)		—		(194)		194		—		—
Loan warehouse debt	(1,049,144)		—		(1,049,144)		1,049,144		—		—
Security repurchase agreements	(80,938)		—		(80,938)		80,938		—		—
Total Liabilities	$	(1,132,600)	$	—	$	(1,132,600)	$	1,131,711	$	889	$	—


	Gross Amounts of Recognized Assets (Liabilities)		Gross Amounts Offset in Consolidated Balance Sheet		Net Amounts of Assets (Liabilities) Presented in Consolidated Balance Sheet		Gross Amounts Not Offset in Consolidated Balance Sheet (1)				Net Amount
December 31, 2020 (In Thousands)							Financial Instruments		Cash Collateral (Received) Pledged
Assets (2)
Interest rate agreements	$	19,951	$	—	$	19,951	$	—	$	(7,769)	$	12,182

TBAs	18,260		—		18,260		(13,423)		(4,658)		179

Total Assets	$	38,211	$	—	$	38,211	$	(13,423)	$	(12,427)	$	12,361

Liabilities (2)

TBAs	$	(15,495)	$	—	$	(15,495)	$	13,423	$	1,061	$	(1,011)

Loan warehouse debt	(137,269)		—		(137,269)		137,269		—		—
Security repurchase agreements	(77,775)		—		(77,775)		77,775		—		—
Total Liabilities	$	(230,539)	$	—	$	(230,539)	$	228,467	$	1,061	$	(1,011)

(1)Amounts presented in these columns are limited in total to the net amount of assets or liabilities presented in the prior column by instrument. In certain cases, there is excess cash collateral or financial assets we have pledged to a counterparty (which may, in certain circumstances, be a clearinghouse) that exceed the financial liabilities subject to a master netting arrangement or similar agreement. Additionally, in certain cases, counterparties may have pledged excess cash collateral to us that exceeds our corresponding financial assets. In each case, any of these excess amounts are excluded from the table although they are separately reported in our consolidated balance sheets as assets or liabilities, respectively.

(2)Interest rate agreements and TBAs are components of derivatives instruments on our consolidated balance sheets. Loan warehouse debt, which is secured by certain residential and business purpose loans, and security repurchase agreements are components of Short-term debt and Long-term debt on our consolidated balance sheets.