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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-Q
(Mark One)
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period endedSeptember 30, 2021
OR
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from ______ to ______
 
Commission file number 001-36174
NMI Holdings, Inc.
(Exact name of registrant as specified in its charter)
Delaware 45-4914248
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
2100 Powell StreetEmeryville,CA 94608
(Address of principal executive offices)(Zip Code)

(855) 530-6642
(Registrant's telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Class A Common Stock, par value $0.01NMIHNASDAQ
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
Yes No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes No
The number of shares of common stock, $0.01 par value per share, of the registrant outstanding on October 29, 2021 was 85,745,650 shares.
1


TABLE OF CONTENTS
Item 1.
Item 2.
Item 3.
Item 4.
Item 1.
Item 1A.
Item 6.

2


CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS
    This report contains forward looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (Securities Act), Section 21E of the Securities Exchange Act of 1934, as amended (Exchange Act), and the U.S. Private Securities Litigation Reform Act of 1995. Any statements about our expectations, outlook, beliefs, plans, predictions, forecasts, objectives, assumptions or future events or performance are not historical facts and may be forward looking. These statements are often, but not always, made through the use of words or phrases such as "anticipate," "believe," "can," "could," "may," "predict," "assume," "potential," "should," "will," "estimate," "perceive," "plan," "project," "continuing," "ongoing," "expect," "intend" or words of similar meaning and include, but are not limited to, statements regarding the outlook for our future business and financial performance. All forward looking statements are necessarily only estimates of future results, and actual results may differ materially from expectations. You are, therefore, cautioned not to place undue reliance on such statements which should be read in conjunction with the other cautionary statements that are included elsewhere in this report. Further, any forward looking statement speaks only as of the date on which it is made and we undertake no obligation to update or revise any forward looking statement to reflect events or circumstances after the date on which the statement is made or to reflect the occurrence of unanticipated events. We have based these forward looking statements on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, operating results, business strategy and financial needs. There are important factors that could cause our actual results, level of activity, performance or achievements to differ materially from the results, level of activity, performance or achievements expressed or implied by the forward looking statements including, but not limited to:
uncertainty relating to the coronavirus (COVID-19) pandemic and the measures taken by governmental authorities and other third parties to combat it, including their impact on the global economy, the U.S. housing, real estate, housing finance and mortgage insurance markets, and our business, operations and personnel;
changes in the business practices of Fannie Mae and Freddie Mac (collectively, the GSEs), including decisions that have the impact of decreasing or discontinuing the use of mortgage insurance as credit enhancement generally, or with first time homebuyers or on very high loan-to-value mortgages;
our ability to remain an eligible mortgage insurer under the private mortgage insurer eligibility requirements (PMIERs) and other requirements imposed by the GSEs, which they may change at any time;
retention of our existing certificates of authority in each state and the District of Columbia (D.C.) and our ability to remain a mortgage insurer in good standing in each state and D.C.;
our future profitability, liquidity and capital resources;
actions of existing competitors, including other private mortgage insurers and government mortgage insurers such as the Federal Housing Administration (FHA), the U.S. Department of Agriculture's Rural Housing Service (USDA) and the U.S. Department of Veterans Affairs (VA) (collectively, government MIs), and potential market entry by new competitors or consolidation of existing competitors;
developments in the world's financial and capital markets and our access to such markets, including reinsurance;
adoption of new or changes to existing laws, rules and regulations that impact our business or financial condition directly or the mortgage insurance industry generally or their enforcement and implementation by regulators, including the implementation of the final rules defining and/or concerning "Qualified Mortgage" and "Qualified Residential Mortgage";
U.S. federal tax reform and other potential changes in tax law and their impact on us and our operations;
legislative or regulatory changes to the GSEs' role in the secondary mortgage market or other changes that could affect the residential mortgage industry generally or mortgage insurance industry in particular;
potential future lawsuits, investigations or inquiries or resolution of current lawsuits or inquiries;
changes in general economic, market and political conditions and policies, interest rates, inflation and investment results or other conditions that affect the housing market or the markets for home mortgages or mortgage insurance;
our ability to successfully execute and implement our capital plans, including our ability to access the capital, credit and reinsurance markets and to enter into, and receive approval of, reinsurance arrangements on terms and conditions that are acceptable to us, the GSEs and our regulators;
3


our ability to implement our business strategy, including our ability to write mortgage insurance on high quality low down payment residential mortgage loans, implement successfully and on a timely basis, complex infrastructure, systems, procedures, and internal controls to support our business and regulatory and reporting requirements of the insurance industry;
our ability to attract and retain a diverse customer base, including the largest mortgage originators;
failure of risk management or pricing or investment strategies;
decrease in the length of time our insurance policies are in force;
emergence of unexpected claim and coverage issues, including claims exceeding our reserves or amounts we had expected to experience;
potential adverse impacts arising from natural disasters, including, with respect to affected areas, a decline in new business, adverse effects on home prices, and an increase in notices of default on insured mortgages;
the inability of our counter-parties, including third party reinsurers, to meet their obligations to us;
failure to maintain, improve and continue to develop necessary information technology (IT) systems or the failure of technology providers to perform; and
ability to recruit, train and retain key personnel.
For more information regarding these risks and uncertainties as well as certain additional risks that we face, you should refer to Part I, Item 2, "Management's Discussion and Analysis of Financial Condition and Results of Operations" and elsewhere in this report on Form 10-Q, including the exhibits hereto. In addition, for additional discussion of those risks and uncertainties that have the potential to affect our business, financial condition, results of operations, cash flows or prospects in a material and adverse manner, you should review the Risk Factors in Part II, Item 1A of this Report and in Part I, Item 1A, of our Annual Report on Form 10-K for the year ended December 31, 2020 (2020 10-K), as subsequently updated in other reports we file from time to time with the U.S. Securities and Exchange Commission (SEC).
Unless expressly indicated or the context requires otherwise, the terms "we," "our," "us" and the "Company" in this document refer to NMI Holdings, Inc., a Delaware corporation, and its wholly-owned subsidiaries on a consolidated basis.

4


PART I
Item 1. Financial Statements



INDEX TO FINANCIAL STATEMENTS
Condensed Consolidated Balance Sheets as of September 30, 2021 (Unaudited) and December 31, 2020
Condensed Consolidated Statements of Operations and Comprehensive Income for the three and nine months ended September 30, 2021 and 2020 (Unaudited)
Condensed Consolidated Statements of Changes in Shareholders' Equity for the three months ended September 30, 2021 and 2020 (Unaudited)
Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2021 and 2020 (Unaudited)
Notes to Condensed Consolidated Financial Statements (Unaudited)

5

NMI HOLDINGS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED)
September 30, 2021December 31, 2020
Assets(In Thousands, except for share data)
Fixed maturities, available-for-sale, at fair value (amortized cost of $2,024,639 and $1,730,835 as of September 30, 2021 and December 31, 2020, respectively)
$2,054,419 $1,804,286 
Cash and cash equivalents (including restricted cash of $3,572 and $5,555 as of September 30, 2021 and December 31, 2020, respectively)
97,260 126,937 
Premiums receivable58,499 49,779 
Accrued investment income12,114 9,862 
Prepaid expenses4,409 3,292 
Deferred policy acquisition costs, net61,362 62,225 
Software and equipment, net32,066 29,665 
Intangible assets and goodwill3,634 3,634 
Prepaid reinsurance premiums2,969 6,190 
Reinsurance recoverable 20,420 17,608 
Other assets 51,162 53,188 
Total assets$2,398,314 $2,166,666 
Liabilities
Debt$394,282 $393,301 
Unearned premiums139,624 118,817 
Accounts payable and accrued expenses78,657 61,716 
Reserve for insurance claims and claim expenses104,604 90,567 
Reinsurance funds withheld6,280 8,653 
Warrant liability, at fair value3,010 4,409 
Deferred tax liability, net151,364 112,586 
Other liabilities 4,267 7,026 
Total liabilities882,088 797,075 
Commitments and contingencies
Shareholders' equity
Common stock - class A shares, $0.01 par value; 85,743,638 and 85,163,039 shares issued and outstanding as of September 30, 2021 and December 31, 2020, respectively (250,000,000 shares authorized)
857 852 
Additional paid-in capital948,395 937,872 
Accumulated other comprehensive income, net of tax19,357 53,856 
Retained earnings 547,617 377,011 
Total shareholders' equity1,516,226 1,369,591 
Total liabilities and shareholders' equity$2,398,314 $2,166,666 


See accompanying notes to condensed consolidated financial statements (unaudited).
6

NMI HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (UNAUDITED)
For the three months ended September 30,For the nine months ended September 30,
2021202020212020
Revenues(In Thousands, except for per share data)
Net premiums earned$113,594 $98,802 $330,361 $296,463 
Net investment income9,831 8,337 28,027 23,511 
Net realized investment gains (losses)3 (4)15 635 
Other revenues613 648 1,597 2,771 
Total revenues124,041 107,783 360,000 323,380 
Expenses
Insurance claims and claim expenses3,204 15,667 12,806 55,698 
Underwriting and operating expenses34,669 33,969 103,460 96,616 
Service expenses787 557 1,859 2,381 
Interest expense7,930 7,796 23,767 16,481 
(Gain) loss from change in fair value of warrant liability 437 (454)(4,286)
Total expenses46,590 58,426 141,438 166,890 
Income before income taxes77,451 49,357 218,562 156,490 
Income tax expense 17,258 11,178 47,956 33,192 
Net income $60,193 $38,179 $170,606 $123,298 
Earnings per share
Basic$0.70 $0.45 $1.99 $1.63 
Diluted$0.69 $0.45 $1.96 $1.55 
Weighted average common shares outstanding
Basic85,721 84,805 85,563 75,695 
Diluted86,880 85,599 86,794 76,867 
Net income $60,193 $38,179 $170,606 $123,298 
Other comprehensive income (loss), net of tax:
Unrealized (losses) gains in accumulated other comprehensive gain (loss), net of tax (benefit) expense of $(2,165) and $2,494 for the three months ended September 30, 2021 and 2020, and $(9,168) and $7,655 for the nine months ended September 30, 2021 and 2020, respectively
(8,144)9,381 (34,487)28,799 
Reclassification adjustment for realized (gains) losses included in net income, net of tax expense (benefit) of $1 and $(1) for the three months ended September 30, 2021 and 2020, and $3 and $(258) for the nine months ended September 30, 2021 and 2020, respectively
(2)3 (12)972 
Other comprehensive income (loss), net of tax(8,146)9,384 (34,499)29,771 
Comprehensive income $52,047 $47,563 $136,107 $153,069 

See accompanying notes to condensed consolidated financial statements (unaudited).
7

NMI HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED)
Common Stock - Class AAdditional
Paid-in Capital
Accumulated Other Comprehensive IncomeRetained EarningsTotal
SharesAmount
(In Thousands)
Balances, December 31, 202085,163 $852 $937,872 $53,856 $377,011 $1,369,591 
Common stock: class A shares issued related to warrant exercises24 *557 — — 557 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes413 4 (624)— — (620)
Share-based compensation expense— — 3,022 — — 3,022 
Change in unrealized investment gains/losses, net of tax benefit of $11,997
— — — (45,133)— (45,133)
Net income— — — — 52,891 52,891 
Balances, March 31, 202185,600 $856 $940,827 $8,723 $429,902 $1,380,308 
Common stock: class A shares issued related to warrants8 *197 — — 197 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes95 1 (286)— — (285)
Share-based compensation expense— — 3,383 — — 3,383 
Change in unrealized investment gains/losses, net of tax expense of $4,992
— — — 18,780 — 18,780 
Net income— — — — 57,522 57,522 
Balances, June 30, 202185,703 $857 $944,121 $27,503 $487,424 $1,459,905 
Common stock: class A shares issued related to warrants28 *603 — — 603 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes12 *(45)— — (45)
Share-based compensation expense— — 3,716 — — 3,716 
Change in unrealized investment gains/losses, net of tax benefit of $2,166
— — — (8,146)— (8,146)
Net income— — — 60,193 60,193 
Balances, September 30, 202185,743 $857 $948,395 $19,357 $547,617 $1,516,226 

*    During the three months ended March 31, 2021 and June 30, 2021, we issued 23,750 and 8,096 common shares, respectively, with a par value of $0.01 in connection with the exercise of warrants, which are not identifiable in this schedule due to rounding. During the three months ended September 30, 2021, we issued 27,715 common shares with a par value of $0.01 in connection with the exercise of warrants, and 12,436 common shares with a par value of $0.01 in connection with the exercise of options and vesting of restricted stock units granted under our stock plans, which are not identifiable in this schedule due to rounding.








8

NMI HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED)


Common Stock - Class AAdditional
Paid-in Capital
Accumulated Other Comprehensive IncomeRetained EarningsTotal
SharesAmount
(In Thousands)
Balances, December 31, 201968,358 $684 $707,003 $17,288 $205,445 $930,420 
Common stock: class A shares issued related to warrant exercises6 *221 — — 221 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes510 5 (3,755)— — (3,750)
Share-based compensation expense— — 2,552 — — 2,552 
Change in unrealized investment gains/losses, net of tax benefit of $3,409
— — — (12,824)— (12,824)
Net income— — — — 58,271 58,271 
Balances, March 31, 202068,874 $689 $706,021 $4,464 $263,716 $974,890 
Common stock: class A shares issued related to public offering15,870 159 219,528 — — 219,687 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes61 *(321)— — (321)
Share-based compensation expense— — 2,722 — — 2,722 
Change in unrealized investment gains/losses, net of tax expense of $8,829
— — — 33,211 — 33,211 
Net income— — — — 26,848 26,848 
Balances, June 30, 202084,805 $848 $927,950 $37,675 $290,564 $1,257,037 
Common stock: class A shares issued under stock plans, net of shares withheld for employee taxes4 *— — —  
Share-based compensation expense— — 2,956 — — 2,956 
Change in unrealized investment gains, net of tax expense of $2,494
— — — 9,384 — 9,384 
Net income— — — — 38,179 38,179 
Balances, September 30, 202084,809 $848 $930,906 $47,059 $328,743 $1,307,556 

*    During the three months ended March 31, 2020, we issued 6,474 common shares with a par value of $0.01 in connection with the exercise of warrants, which is not identifiable in this schedule due to rounding. During the three months ended June 30, 2020 and September 30, 2020, we issued 61,226 and 3,750 common shares, respectively, with a par value of $0.01 in connection with the exercise of options and vesting of restricted stock units granted under our stock plans, which are not identifiable in this schedule due to rounding.
See accompanying notes to condensed consolidated financial statements (unaudited).



9

NMI HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED)
For the nine months ended September 30,
20212020
Cash flows from operating activities(In Thousands)
Net income $170,606 $123,298 
Adjustments to reconcile net income to net cash provided by operating activities:
Net realized investment gains (15)(635)
Gain from change in fair value of warrant liability(454)(4,286)
Depreciation and amortization8,250 7,378 
Net amortization of premium on investment securities5,020 2,116 
Amortization of debt discount and debt issuance costs1,349 3,600 
Deferred income taxes47,949 33,178 
Share-based compensation expense10,121 8,230 
Changes in operating assets and liabilities:
Premiums receivable(8,720)(2,074)
Accrued investment income(2,252)(2,935)
Prepaid expenses(1,117)(1,067)
Deferred policy acquisition costs, net863 (3,222)
Other assets (79)(81)
Unearned premiums20,807 (20,634)
Reserve for insurance claims and claim expenses14,037 63,478 
Reinsurance recoverable (2,812)(12,241)
Reinsurance balances, net(174)2,857 
Accounts payable and accrued expenses18,002 18,017 
Net cash provided by operating activities281,381 214,977 
Cash flows from investing activities
Purchase of short-term investments(10,640)(41,872)
Purchase of fixed-maturity investments, available-for-sale(390,988)(902,524)
Proceeds from maturity of short-term investments 85,689 
Proceeds from redemptions, maturities and sale of fixed-maturity investments, available-for-sale100,215 346,931 
Software and equipment(9,107)(9,102)
Net cash used in investing activities(310,520)(520,878)
Cash flows from financing activities
Proceeds from issuance of common stock related to public offering, net of issuance costs 219,687 
Proceeds from issuance of common stock related to employee equity plans4,137 3,407 
Proceeds from issuance of common stock related to warrants412  
Taxes paid related to net share settlement of equity awards(5,087)(7,465)
Proceeds from senior secured notes 400,000 
Repayments of term loan (147,750)
Payments of debt issuance/modification costs (8,868)
Net cash (used in) provided by financing activities(538)459,011 
Net (decrease) increase in cash, cash equivalents and restricted cash(29,677)153,110 
Cash, cash equivalents and restricted cash, beginning of period126,937 41,089 
Cash, cash equivalents and restricted cash, end of period$97,260 $194,199 
Supplemental disclosures of cash flow information
Interest paid$14,750 $4,286 
Income taxes refunded$457 $76 

See accompanying notes to condensed consolidated financial statements (unaudited).
10

NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

1. Organization, Basis of Presentation and Summary of Accounting Principles
NMI Holdings, Inc. (NMIH) is a Delaware corporation, incorporated in May 2011, to provide private mortgage guaranty insurance (which we refer to as mortgage insurance or MI) through its wholly-owned insurance subsidiaries, National Mortgage Insurance Corporation (NMIC) and National Mortgage Reinsurance Inc One (Re One). Our common stock is listed on the NASDAQ exchange under the ticker symbol "NMIH."
NMIC, our primary insurance subsidiary, issued its first mortgage insurance policy in April 2013. NMIC is licensed to write mortgage insurance in all 50 states and DC. In August 2015, NMIH capitalized a wholly-owned subsidiary, NMI Services, Inc. (NMIS), through which we offer outsourced loan review services to mortgage loan originators.
Basis of Presentation
The accompanying unaudited condensed consolidated financial statements, which include the results of NMIH and its wholly-owned subsidiaries, have been prepared in accordance with the instructions to Form 10-Q as prescribed by the SEC for interim reporting and include other information and disclosures required by accounting principles generally accepted in the U.S. (GAAP). Our accounts are maintained in U.S. dollars. These statements should be read in conjunction with our consolidated financial statements and notes thereto for the year ended December 31, 2020, included in our 2020 10-K. All intercompany transactions have been eliminated. The preparation of financial statements in accordance with GAAP requires management to make estimates and assumptions that affect reported amounts of assets and liabilities, as well as disclosure of contingent assets and liabilities as of the balance sheet date. Estimates also affect the reported amounts of income and expenses for the reporting period. Actual results could differ from those estimates. The results of operations for the interim period may not be indicative of the results that may be expected for the full year ending December 31, 2021.
COVID-19 Developments
On January 30, 2020, the World Health Organization (WHO) declared the outbreak of COVID-19 a global health emergency and subsequently characterized the outbreak as a global pandemic on March 11, 2020. In an effort to stem contagion and control the COVID-19 pandemic, the population at large severely curtailed day-to-day activity and local, state and federal regulators imposed a broad set of restrictions on personal and business conduct nationwide. The COVID-19 pandemic, along with the widespread public and regulatory response, caused a dramatic slowdown in U.S. and global economic activity and a record number of Americans were furloughed or laid-off in the ensuing downturn.
The global dislocation caused by COVID-19 was unprecedented. In response to the COVID-19 outbreak and uncertainty that it introduced, we activated our disaster continuity program to ensure our employees were safe and able to manage our business without interruption. We pursued a broad series of capital and reinsurance transactions to bolster our balance sheet and expand our ability to serve our customers and their borrowers, and we updated our underwriting guidelines and policy pricing in consideration of the increased level of macroeconomic volatility.
While there is increased optimism that the acute economic impact of COVID-19 has begun to recede, the pandemic continues to affect communities across the U.S. and poses significant risk globally. The path and pace of global economic recovery will depend, in large part, on the course of the virus, which itself remains unknown and subject to risk. Given this uncertainty, we are not able to fully assess or estimate the ultimate impact COVID-19 will have on the mortgage insurance market, our business performance or our financial position including our new business production, default and claims experience, and investment portfolio results at this time.
Significant Accounting Principles
There have been no changes to our significant accounting principles as described in Item 8, "Financial Statements and Supplementary Data - Notes to Consolidated Financial Statements - Note 2 - Summary of Accounting Principles" of our 2020 10-K, except as noted in "Variable Interest Entities" and "Recent Accounting Pronouncements - Adopted" below.
Variable Interest Entities
    NMIC is a party to reinsurance agreements with Oaktown Re Ltd., Oaktown Re II Ltd., Oaktown Re III Ltd., Oaktown Re IV Ltd. Oaktown Re V Ltd., and Oaktown Re VI Ltd. (special purpose reinsurance entities collectively referred to as the Oaktown Re Vehicles) effective May 2, 2017, July 25, 2018, July 30, 2019, July 30, 2020, October 29, 2020 and April 27, 2021, respectively. At inception of the respective reinsurance agreements, we determined that each of the Oaktown Re Vehicles were variable interest entities (VIEs), as defined under GAAP Accounting Standards Codification (ASC) 810, because they did not have sufficient equity at risk to finance their respective activities. We evaluated the VIEs at inception to determine whether NMIC
11

NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
was the primary beneficiary under each reinsurance transaction and, if so, whether we were required to consolidate the assets and liabilities of each VIE. The primary beneficiary of a VIE is an enterprise that (1) has the power to direct the activities of the VIE, which most significantly impact its economic performance and (2) has significant economic exposure to the VIE, i.e., the obligation to absorb losses or receive benefits that could potentially be significant. The determination of whether an entity is the primary beneficiary of a VIE is complex and requires management judgment regarding determinative factors, including the expected results of the VIE and how those results are absorbed by beneficial interest holders, as well as which party has the power to direct activities that most significantly impact the performance of the VIE. We concluded that we are not the primary beneficiary of each VIE and, as such, we do not consolidate them in our consolidated financial statements.

Recent Accounting Pronouncements - Adopted
In December 2019, the Financial Accounting Standards Board (the FASB) issued ASU 2019-12, Simplifying the Accounting for Income Taxes (Topic 740). The update eliminates certain exceptions for recognizing deferred taxes for investments, performing intra-period allocations and calculating income taxes in interim periods. The ASU also includes guidance to reduce complexity in certain income tax areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated group. We adopted this ASU on January 1, 2021 and determined it did not have a material impact on our consolidated financial statements.
Recent Accounting Pronouncements - Not Yet Adopted
In August 2018, the FASB issued ASU 2018-12, Targeted Improvements to the Accounting for Long-Duration Contracts (Topic 944). The update provides guidance to the existing recognition, measurement, presentation and disclosure requirements for long-duration contracts issued by an insurance entity. The FASB subsequently issued ASU 2019-09 in November 2019 and ASU 2020-11 in November 2020, which amended the effective date for this standard and provided transition relief to facilitate early application for long duration contracts. These standards will now take effect for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2022. We are currently evaluating the impact the adoption of these ASUs will have, if any, on our consolidated financial statements.
In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848). The update provides optional guidance to ease the potential burden in accounting for reference rate reform on financial reporting. Reference rate reform refers to the global transition away from referencing the London Interbank Offered Rate (LIBOR) in financial contracts, which is expected to be discontinued beginning in 2021 through 2023. The ASU includes optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. This standard may be elected and applied prospectively over time from March 12, 2020 through December 31, 2022 as reference rate reform activities occur. The adoption of, and future elections under, this ASU are not expected to have a material impact on our consolidated financial statements as the ASU will ease, if warranted, the requirements for accounting for the future effects of the rate reform. We continue to monitor the impact the discontinuance of LIBOR or another reference rate will have on our contracts and other transactions.
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 update simplifies the accounting for convertible instruments and contracts on an entity's own equity, including warrants, eliminating certain triggers for derivative accounting. The standard will take effect for public business entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2021. We have evaluated the impact the adoption of this ASU and we do not expect it to have a material impact on our consolidated financial statements, including our warrant liability.

2. Investments
We hold all investments on an available-for-sale basis and evaluate each position quarterly for impairment. We recognize an impairment on a security through the statement of operations if (i) we intend to sell the impaired security; or (ii) it is more likely than not that we will be required to sell the impaired security prior to recovery of its amortized cost basis. If a sale is intended or likely to be required, we write down the amortized cost basis of the security to fair value and recognize the full amount of the impairment through the statement of operations as a "Net Realized Investment Loss." To the extent we determine that a security impairment is credit-related, an impairment loss is recognized through the statement of operations as a provision for credit loss expense. The portion of a security impairment attributed to other non-credit related factors is recognized in other comprehensive income, net of taxes.
12

NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
Fair Values and Gross Unrealized Gains and Losses on Investments
Amortized
Cost
Gross UnrealizedFair
Value
GainsLosses
As of September 30, 2021(In Thousands)
U.S. Treasury securities and obligations of U.S. government agencies$29,435 $1,384 $ $30,819 
Municipal debt securities503,615 8,114 (2,735)508,994 
Corporate debt securities1,375,589 32,051 (10,478)1,397,162 
Asset-backed securities104,990 1,516 (77)106,429 
Total bonds2,013,629 43,065 (13,290)2,043,404 
Short-term investments11,010 5  11,015 
Total investments$2,024,639 $43,070 $(13,290)$2,054,419 
Amortized
Cost
Gross UnrealizedFair
Value
GainsLosses
As of December 31, 2020(In Thousands)
U.S. Treasury securities and obligations of U.S. government agencies$29,412 $2,186 $ $31,598 
Municipal debt securities407,323 14,027 (2)421,348 
Corporate debt securities1,165,260 55,014 (483)1,219,791 
Asset-backed securities128,471 2,736 (27)131,180 
Total bonds1,730,466 73,963 (512)1,803,917 
Short-term investments369   369 
Total investments$1,730,835 $73,963 $(512)$1,804,286 
We did not own any mortgage-backed securities in our asset-backed securities portfolio at September 30, 2021 or December 31, 2020.

The following table presents a breakdown of the fair value of our corporate debt securities by issuer industry group as of September 30, 2021 and December 31, 2020:
September 30, 2021December 31, 2020
Financial38 %37 %
Consumer23 23 
Communications12 10 
Technology10 10 
Utilities10 11 
Industrial7 9 
Total100 %100 %
As of September 30, 2021 and December 31, 2020, approximately $5.6 million and $5.7 million, respectively, of our cash and investments were held in the form of U.S. Treasury securities on deposit with various state insurance departments to satisfy regulatory requirements.
13

NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
Scheduled Maturities
The amortized cost and fair value of available-for-sale securities as of September 30, 2021 and December 31, 2020, by contractual maturity, are shown below. Expected maturities will differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties. Because most asset-backed securities provide for periodic payments throughout their lives, they are listed below in a separate category.
As of September 30, 2021Amortized
Cost
Fair
Value
(In Thousands)
Due in one year or less$66,077 $66,624 
Due after one through five years624,658 646,757 
Due after five through ten years1,165,336 1,170,933 
Due after ten years63,578 63,676 
Asset-backed securities104,990 106,429 
Total investments$2,024,639 $2,054,419 
As of December 31, 2020Amortized
Cost
Fair
Value
(In Thousands)
Due in one year or less$57,429 $57,949 
Due after one through five years507,444 536,520 
Due after five through ten years1,016,230 1,056,098 
Due after ten years21,261 22,539 
Asset-backed securities128,471 131,180 
Total investments$1,730,835 $1,804,286 
Aging of Unrealized Losses
As of September 30, 2021, the investment portfolio had gross unrealized losses of $13.3 million, of which $1.3 million had been in an unrealized loss position for a period of twelve months or longer. As of December 31, 2020, the investment portfolio had gross unrealized losses of $512 thousand, of which $8 thousand had been in an unrealized loss position for a period of twelve months or longer. For those securities in an unrealized loss position, the length of time the securities were in such a position is as follows:
Less Than 12 Months12 Months or GreaterTotal
# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses
As of September 30, 2021(Dollars in Thousands)
Municipal debt securities116 $223,105 $(2,735) $ 116 $223,105 $(2,735)
Corporate debt securities94 598,002 (9,258)4 29,367 (1,220)98 627,369 (10,478)
Asset-backed securities2 4,228 (28)1 2,001 (49)3 6,229 (77)
Short-term investments2 1,649     2 1,649  
Total 214 $826,984 $(12,021)5 $31,368 $(1,269)219 $858,352 $(13,290)
Less Than 12 Months12 Months or GreaterTotal
# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses# of SecuritiesFair ValueUnrealized Losses
As of December 31, 2020(Dollars in Thousands)
Municipal debt securities4 3,548 (2)   4 3,548 (2)
Corporate debt securities9 40,081 (483)1 33  10 40,114 (483)
Asset-backed securities2 5,191 (19)1 2,495 (8)3 7,686 (27)
Total15 $48,820 $(504)2 $2,528 $(8)17 $51,348 $(512)
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NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
Allowance for credit losses
As of September 30, 2021 and December 31, 2020, we did not recognize an allowance for credit loss for any security in the investment portfolio and we did not record any provision for credit loss for investment securities during the three or nine month periods ended September 30, 2021 or September 30, 2020.
The increase in the number of securities in and the aggregate size of the unrealized loss position as of September 30, 2021, was primarily driven by interest rate movements following the purchase date of certain securities. Based on current facts and circumstances, we believe the unrealized losses as of September 30, 2021 are not indicative of the ultimate collectability of the current amortized cost of the securities.

Net Investment Income
The following table presents the components of net investment income:
For the three months ended September 30,For the nine months ended September 30,
2021202020212020
(In Thousands)
Investment income$10,170 $8,624 $29,003 $24,293 
Investment expenses(339)(287)(976)(782)
Net investment income$9,831 $8,337 $28,027 $23,511 

The following table presents the components of net realized investment losses:
For the three months ended September 30,For the nine months ended September 30,
2021202020212020
(In Thousands)
Gross realized investment gains$3 $ $15 $5,126 
Gross realized investment losses (4) (4,491)
Net realized investment gains (losses)$3 $(4)$15 $635 

3. Fair Value of Financial Instruments
The following describes the valuation techniques used by us to determine the fair value of our financial instruments:
We established a fair value hierarchy by prioritizing the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under this standard are described below:
Level 1 - Fair value measurements based on quoted prices in active markets that we have the ability to access for identical assets or liabilities. Market price data generally is obtained from exchange or dealer markets. We do not adjust the quoted price for such instruments.
Level 2 - Fair value measurements based on inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs other than quoted prices that are observable for the asset or liability, such as interest rates and yield curves that are observable at commonly quoted intervals.
Level 3 - Fair value measurements based on valuation techniques that use significant inputs that are unobservable. Both observable and unobservable inputs may be used to determine the fair values of positions classified in Level 3. The circumstances for using these measurements include those in which there is little, if any, market activity for the asset or
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NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
liability. Therefore, we must make certain assumptions, which require significant management judgment or estimation about the inputs a hypothetical market participant would use to value that asset or liability.
In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, the level in the fair value hierarchy is determined based on the lowest level input that is significant to the fair value measurement in its entirety.
Assets classified as Level 1 and Level 2
To determine the fair value of securities available-for-sale in Level 1 and Level 2 of the fair value hierarchy, independent pricing sources have been utilized. One price is provided per security based on observable market data. To ensure securities are appropriately classified in the fair value hierarchy, we review the pricing techniques and methodologies of the independent pricing sources and believe that their policies adequately consider market activity, either based on specific transactions for the issue valued or based on modeling of securities with similar credit quality, duration, yield and structure that were recently traded. A variety of inputs are utilized by the independent pricing sources including benchmark yields, reported trades, non-binding broker/dealer quotes, issuer spreads, two sided markets, benchmark securities, bids, offers and reference data including data published in market research publications. Inputs may be weighted differently for any security, and not all inputs are used for each security evaluation. Market indicators, industry and economic events are also considered. This information is evaluated using a multidimensional pricing model. Quality controls are performed by the independent pricing sources throughout this process, which include reviewing tolerance reports, trading information and data changes, and directional moves compared to market moves. This model combines all inputs to arrive at a value assigned to each security. We have not made any adjustments to the prices obtained from the independent pricing sources.
Liabilities classified as Level 3
We calculate the fair value of outstanding warrants utilizing Level 3 inputs, including a Black-Scholes option-pricing model, in combination with a binomial model, and we value the pricing protection features within the warrants using a Monte-Carlo simulation model. Variables in the model include the risk-free rate of return, dividend yield, expected life and expected volatility of our stock price.

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NMI HOLDINGS, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
The following tables present the level within the fair value hierarchy at which our financial instruments were measured:
Fair Value Measurements Using
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Fair Value
As of September 30, 2021(In Thousands)
U.S. Treasury securities and obligations of U.S. government agencies$30,819 $ $ $30,819 
Municipal debt securities 508,994  508,994 
Corporate debt securities 1,397,162  1,397,162 
Asset-backed securities 106,429  106,429 
Cash, cash equivalents and short-term investments108,275   108,275 
Total assets$139,094 $2,012,585 $ $2,151,679 
Warrant liability  3,010 3,010 
Total liabilities$ $ $3,010 $3,010 
Fair Value Measurements Using
Quoted Prices in
Active Markets for
Identical Assets
(Level 1)
Significant Other
Observable Inputs
(Level 2)
Significant
Unobservable
Inputs
(Level 3)
Fair Value
As of December 31, 2020(In Thousands)
U.S. Treasury securities and obligations of U.S. government agencies$31,598 $ $ $31,598 
Municipal debt securities 421,348  421,348 
Corporate debt securities 1,219,791  1,219,791 
Asset-backed securities 131,180  131,180 
Cash, cash equivalents and short-term investments127,306   127,306 
Total assets$158,904 $1,772,319 $ $1,931,223 
Warrant liability