NMI Holdings (NMIH) Q1 2026: NIW Jumps 33% as Portfolio Quality Remains Resilient
National MI’s first quarter saw a 33% surge in new insurance written (NIW), reflecting both market share discipline and robust housing demand. Despite a modest uptick in defaults and claims, portfolio credit quality remained strong, underpinned by prudent risk management and stable underwriting standards. Management’s focus on risk selection, expense control, and capital strength positions NMIH to navigate macro uncertainties and sustain value creation through the cycle.
Summary
- Secular Housing Tailwinds: Long-term demand and affordability gaps continue to drive private mortgage insurance growth.
- Credit Normalization Managed: Slightly higher defaults and loss severity are offset by disciplined underwriting and risk transfer.
- Capital Deployment Discipline: Buybacks and expense efficiency reinforce balance sheet strength and shareholder return focus.
Performance Analysis
NMI Holdings delivered record top-line revenue in Q1 2026, with total revenue reaching $183.5 million, up 6% year-over-year and 2% sequentially. The company’s new insurance written (NIW) volume climbed to $12.3 billion, a 33% increase over the prior year, indicating strong demand for private mortgage insurance as home affordability challenges persist. The insured portfolio grew to a record $222.3 billion, supported by high persistency and continued new business production.
Operating leverage remained a highlight, as the expense ratio dropped to 19.8% from 20.4% last quarter, and absolute operating expenses were tightly managed. Net premiums earned set a new high, while investment income continued its steady climb. Credit metrics showed a modest increase in defaults and loss severity, primarily driven by seasoning of post-pandemic vintages and larger average loan sizes. However, the default rate remains low at 1.17%, and claims paid were limited to a small pool, reflecting ongoing portfolio resilience.
- Expense Control: Underwriting and operating expenses rose only modestly year-over-year, maintaining NMIH’s position as the industry’s low-cost operator.
- Claims and Defaults: Claims expense and the number of defaults increased slightly, but management attributes this to expected normalization as the portfolio seasons and new vintages mature.
- Capital Return: The company repurchased $27.7 million of stock in Q1 and retains $198 million of buyback authorization, signaling continued capital return discipline.
Overall, NMIH’s financial performance was robust, with profitability and returns supported by disciplined growth, expense efficiency, and proactive risk management.
Executive Commentary
"We have an exceptionally high quality insured portfolio covered by a comprehensive set of risk transfer solutions, and our credit performance continues to stand ahead. We're delivering consistent growth and embedded value gains in our insured book, and we continue to manage our expenses and capital position with discipline and efficiency, building a robust balance sheet that's supported by the significant earnings power of our platform."
Adam Politzer, President and Chief Executive Officer
"We have the smallest expense base in absolute dollar terms in the industry, and we want to make sure we're continuing to invest in our people, our systems, our data and analytics, and risk management, and making sure that we're making those investments for future value. So I think we're going to continue to remain disciplined, but you should expect, over time, increases to that absolute dollar expenditure."
Aurora Swithinbank, Chief Financial Officer
Strategic Positioning
1. Balanced Growth and Market Discipline
NMIH’s approach to new business emphasizes quality over market share, with management reiterating that they do not manage to share targets. The 33% NIW growth aligns with estimated market expansion, reflecting both strong customer relationships and a constructive competitive environment. The company leverages its franchise strength to drive organic portfolio growth while maintaining prudent risk selection.
2. Credit Risk Management and Portfolio Quality
Credit normalization remains orderly, with management highlighting that increases in defaults and loss severity are consistent with expectations as the book seasons and post-COVID vintages mature. The use of comprehensive risk transfer and disciplined underwriting standards continues to insulate against outsized losses, even as the macro backdrop evolves.
3. Expense Efficiency and Capital Allocation
Expense discipline is a core differentiator, with NMIH maintaining the lowest absolute cost base in the industry. This efficiency supports robust profitability and enables ongoing investment in technology, analytics, and risk management. The company continues to prioritize shareholder returns through buybacks, with $198 million of remaining authorization and a proven track record of opportunistic repurchases.
4. Macroeconomic and Housing Market Tailwinds
Secular housing demand and affordability constraints underpin the long-term opportunity for private mortgage insurance. Management remains encouraged by the resilience of the housing market, low unemployment, and steady consumer demand, even as interest rates and geopolitical uncertainty introduce episodic volatility.
Key Considerations
This quarter reinforces NMIH’s reputation for disciplined execution and proactive risk management, but investors should remain attuned to several evolving factors that could shape forward performance:
Key Considerations:
- Portfolio Seasoning Effects: As more defaults originate from post-pandemic vintages with less embedded equity, loss severity may trend higher, but the absolute impact remains contained due to portfolio quality.
- Interest Rate Sensitivity: Mortgage origination volumes and NIW are closely tied to rate movements, with recent volatility in rates driving shifts between purchase and refinance activity.
- Expense Leverage Sustainability: While expense growth is modest, ongoing investments in risk management and technology will be necessary to sustain competitive positioning and regulatory compliance.
- Buyback Capacity and Capital Flexibility: The remaining $198 million in repurchase authorization provides flexibility, but future deployment will be balanced against capital requirements and market conditions.
Risks
Key risks include macroeconomic shocks, such as a sharp deterioration in labor markets or a downturn in housing prices, which could drive higher defaults and claims. Rising loan sizes and seasoning of newer vintages may elevate loss severity, while geopolitical volatility and energy prices could indirectly impact consumer behavior. Competitive pricing and regulatory shifts remain ongoing watchpoints, though management’s disciplined approach helps mitigate these exposures.
Forward Outlook
For Q2 2026, NMIH did not provide explicit numeric guidance but signaled:
- Expectations for NIW and insured portfolio growth to track with broader market trends, assuming continued housing market resilience.
- Expense growth to remain modest, with year-over-year increases reflecting strategic investment in people and systems.
For full-year 2026, management maintained a cautious but constructive tone:
- Volume trends are expected to mirror 2025, with secular drivers supporting demand for private MI.
Management highlighted several factors that will shape results:
- Interest rate movements will drive mortgage activity and NIW pacing.
- Credit normalization will continue, but no acceleration in defaults is expected barring macro deterioration.
Takeaways
NMIH’s Q1 results confirm the durability of its business model, with strong NIW growth, expense efficiency, and disciplined risk management supporting robust profitability and capital returns.
- New Business Momentum: NIW growth and portfolio expansion are being driven by both market demand and franchise execution, not aggressive pricing or risk-taking.
- Credit Quality Vigilance: Management’s proactive stance on risk selection and normalization keeps credit risk in check, even as newer vintages season and macro risks linger.
- Capital and Expense Discipline: Ongoing buybacks and industry-low costs provide flexibility to manage through cycles and invest for long-term value.
Conclusion
NMI Holdings’ Q1 2026 results showcase a business executing with discipline, balancing robust growth with prudent risk management and capital allocation. With a resilient portfolio and clear focus on long-term value creation, NMIH remains well-positioned to navigate evolving market dynamics and deliver for shareholders.
Industry Read-Through
Private mortgage insurance providers continue to benefit from secular housing tailwinds, including affordability constraints and strong demand for down payment support. Measured credit normalization and disciplined underwriting are broadly evident across the sector, with no signs of accelerating deterioration. Expense efficiency and capital return strategies are increasingly differentiating winners from laggards, while interest rate volatility and macro uncertainty remain key variables for all mortgage-related businesses. Peers should monitor shifts in portfolio seasoning, loss severity, and the sustainability of low cost structures as competitive and regulatory landscapes evolve.