Timothy Mattke
Analyst · Phil Stefano from Deutsche Bank
Thanks, Pat. In the quarter, we earned $107.5 million of net income versus $102.4 million for the same period last year. Net income for the full year of 2016 was $343.5 million compared to $1,172,000,000 for the full year of 2015, which included $847.8 million associated with the change in the company's deferred tax asset valuation allowances.
To make the year-over-year comparison of financial results more meaningful, last quarter, we began to disclose a non-GAAP measure called net operating income. Net operating income excludes certain items that we do not consider to be part of the operating results of our primary mortgage insurance business. A full definition of these items, as well as a reconciliation of net operating income to GAAP net income, is included in the body of the press release.
With that said, our net operating income for the quarter was $107.5 million or $0.28 per diluted share compared to $76.6 million or $0.19 per diluted share for the fourth quarter of 2015. For the full year of 2016, net operating income was up 29% to $395.6 million from $306.1 million in 2015. Net operating income per diluted share was $0.99, up 32% from $0.75 in 2015. The primary drivers of the improvement in our financial performance for the year were lower losses incurred as well as marginally lower operating and interest expense.
Turning to the quarterly results. Losses incurred were lower as we received 8% fewer new notices compared to the same period last year. The new delinquent notice activity from the larger, more recently written books remained quite low, reflecting the high credit quality. However, the number of notices received is increasing as they naturally season. Meanwhile, new delinquent notices from the legacy books continued to decline at a steady pace. Combined, this is resulting in a moderation of the overall decline in new notice activity when compared to other periods.
Despite the fact that approximately 50% of the remaining risk in force in the legacy books has never been reported delinquent, we expect that the legacy books will continue to be the primary source of our new notice activity for the foreseeable future. In the quarter, those books generated nearly 85% of the new delinquent notices received while comprising just over 29% of the risk in force. Additionally, nearly 82% of all notices received in the quarter had been reported delinquent previously.
Reflecting the current economic environment, the new notices received in the quarter are estimated to have a claim rate of approximately 12%. As we have previously discussed, we view a 10% claim rate as the long-term average. The pace of improvement in the claim rate continues to be difficult to project given the atypical performance of the pre-2009 books.
During the quarter, we also updated our claim rate assumption for previously received delinquent notices because the actual cure rate experience has outperformed our previous estimates. This resulted in the benefit of approximately $39 million to our primary loss reserves. Also in the quarter, there was a $4 million benefit primarily relating to IBNR.
Despite the steady decline in the delinquent inventory, given the number of delinquent loans, a small change in the cure rate assumption can result in significant reserve development in a given reporting period. Reflecting the declining delinquent inventory, the number of claims received in the quarter declined 21% from the same period last year. Net paid claims in the fourth quarter were $149 million. Primary take claims were $133 million, down 19% from the same period last year.
For the full year 2016, the effective average premium yield was 51.9 basis points, which compares to 52.8 basis points for the full year of 2015. As I have discussed in the past, there's going to be some volatility in this calculation each quarter for a variety of reasons, including the pace of prepayments in cancellations on older books of business, which have higher premium rates than the business we are currently writing, the FICO LTV mix of new writings, premium refund assumptions that are influenced by expected claim rates, premium resets on older books past their 10-year anniversary and the level of the profit commission we earn on a reinsurance treaty, which is dependent on the level of losses incurred that are ceded.
We forecast that after considering the volatility I just described, the effective premium yield would trend lower in future periods. However, the exact amount and timing is difficult to predict, but we expect it could be 2, perhaps, 3 basis points over the course of the next year.
At quarter end, cash and investments totaled $4.8 billion, including $283 million of cash and investments at the holding company. The investment portfolio had a mix of 69% taxable and 31% tax-exempt securities, a pretax yield of 2.6% and a duration of 4.6 years.
Turning to our capital position under the GSEs' private mortgage insurance eligibility requirements or PMIERs. At the end of the third quarter, MGIC's Available Assets totaled approximately $4.7 billion and its Minimum Required Assets are $4.1 billion. MGIC's statutory capital is $1.6 billion in excess of the state requirement.
Reflecting the profitability of the new books of business as well as the improved performance of the legacy books, the cushion above Minimum Required Assets was at the higher end of the range we are currently targeting. In addition to writing new business, we will try to manage debt level by continually reviewing our use of reinsurance as well as continuing to seek and receive dividends from the writing company.
Regarding MGIC's ability to pay quarterly dividends, the Wisconsin insurance regulator approved another $60 million dividend paid to the holding company in the quarter, which brought the year-to-date total to $64 million. We continue to be optimistic that these quarterly dividends will continue and are hopeful that they can grow in the future, especially if the difference between Available Assets and Required Assets under PMIERs grow as we expect. Each dividend would be considered extraordinary versus regular, and therefore, requires OCI approval.
As we discussed last quarter, we believe it is important to manage liquidity and capital position of the writing company to withstand a mild recession and to preserve the ability to continue to write new business without a remediation plan or the need to access the capital markets. It is also important to maintain a cushion for potentially higher volumes of primary business, new business opportunities and potential changes to the PMIERs.
Now let me address the holding company's capital position and the capital actions we took in 2016. Two objectives of our capital management activities are to continue the positive ratings trajectory of the last several quarters and eliminate potentially dilutive shares that resulted from capital raises during the Great Recession.
We accessed the senior debt markets in August when we issued $425 million of 7-year, 5.75% senior notes. This is the first time we accessed the senior debt markets in quite a few years and marks an important milestone for the company. We are very pleased with the investor reception to the offering as well as the terms we obtained. We used the majority of the proceeds to purchase a material portion of the 2% 2020 senior convertible notes and the common shares that were issued as part of the transaction. Any remaining proceeds from the debt issuance are at the holding company for general corporate purposes.
Earlier this year, our writing company, MGIC, purchased a portion of the 9% junior convertible debentures. These debentures are eliminated on our consolidated financial statement. Finally, we also repurchased a fair amount of the 2017 convertible senior notes. Combined, these transactions eliminated 66 million potentially dilutive shares.
During 2016, the writing company returned to investment grade by both Moody's and S&P. While credit ratings are not inhibiting our ability to write new primary business, we think that long-term ratings will become more relevant, especially for nongovernment execution should they return. Therefore, in the future, when we analyze various options to restructure our capital profile as well as the ability to minimize potentially dilutive shares, we need to consider the resulting leverage ratio, the impact on ratings and the debt service level of the holding company. Of course, we also need to consider the capital being created at the writing company and its dividend-paying ability as subject to insurance department approval.
We will continue to analyze the costs and benefits of implementing various transactions to achieve our capital management goals. And when we determine that there is an opportunity to create long-term value for shareholders, we will execute such transactions. The good news from my standpoint is that we have a number of options to consider. With that, let me turn it back to Pat.