Timothy Mattke
Analyst · Barclays
Thanks, Pat. In the quarter, we earned $56.6 million of net income versus $822.8 million for the same period last year. The primary driver of the decrease is -- in the GAAP results was the fact that, in the third quarter of 2015, the reverse of valuation allowance associated with our deferred tax assets relating to future periods.
Additionally, in the third quarter of 2016, we recorded a loss on debt extinguishment when we repurchased $292.4 million of the 2020 senior convertible notes. To make the year-over-year comparison of financial results more meaningful, we have begun 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 $102.2 million or $0.25 per diluted share compared to $83.1 million or $0.20 per diluted share for the third quarter of 2015. The primary drivers of the improvement were lower losses incurred, lower operating expenses and modestly less interest expense.
Lower incurred losses were lowered -- received 10% fewer new notices compared to the same period last year. And reflecting the current economic environment, these new notices are estimated to have a claim rate of approximately 12% versus 13% in the third quarter last year. As we have previously discussed, we view a 10% claim rate as a long-term average. The pace of improvement in the claim rates continue to be difficult to project given the unique performance of the pre-2009 loans.
During the quarter, we also updated our claim rate assumption for older delinquent notices. In particular, those aged more than 12 months because the actual cure rate experience has outperformed our previous estimates. This resulted in a benefit of approximately $30 million to our primary loss reserves. Also in the quarter, there was an $8 million benefit primarily relating to IBNR.
Keep in mind that because our older notices comprise approximately half of our total delinquent loans, even a small change in the cure rate assumption can result in significant reserve development. The pre-2009 legacy books, especially product delinquencies, while continuing -- will decline to -- will continue to dominate the notice activity for the foreseeable future. In the quarter, those books generated nearly 87% of the new delinquent notices received while comprising just over 31% of the risk in force.
Additionally, nearly 84% of the notices received had been recorded delinquent previously. We continue to expect that the 2009 and forward books will generate a low level of delinquencies and very low lifetime loss ratios. Reflecting the declining delinquent inventory, the number of claims received in the quarter declined 19% from the same period last year. Net paid claims in the third quarter were $161 million. Primary paid claims were $147 million, down 23% from the same period last year.
For the first 9 months of 2016, the effective average premium yield was 51.9 basis points, which compares to the first 9 months of 2015 effective yield of 52.9 basis points. As I discussed last quarter, there's going to be some volatility in this calculation each quarter for a variety of reasons, including the pace of prepayments 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 rate, premium resets as older books pass 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 expect that after considering the volatility I just described, the effective premium rate would trend lower in future quarters, however, the exact amount is difficult to predict.
At quarter-end, cash and investments totaled $5 billion, including $329 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 2.5% and a duration of 4.8 years.
Turning to our capital position under the GSE's private mortgage insurer 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 $1.4 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 the Minimum Required Assets was at the higher end of the 10% to 15% range we are currently targeting. We'll 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 $16 million dividend paid to the holding company in the quarter, which brings the year-to-date total to $48 million. We expect to receive a small -- similar sized dividend in the fourth quarter and are optimistic that these quarterly dividends will grow in the future, especially if the difference between Available Assets and Required Assets under PMIERs grows 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 the quarter. The primary goals of our capital management activities are to continue the positive rating trajectory of the last several quarters to improve our capital structure and eliminate potentially dilutive shares that result in capital raises during the Great Recession.
During the quarter, we issued $425 million of 5.75% senior notes. This is the first time we accessed the senior debt markets in quite a few years and marks another milestone for our company. We are very pleased with the investor reception to the offering as well as the terms we obtained. We used a portion of the net proceeds as well as 18.3 million shares of our common stock to purchase $292.4 million of the 2% 2020 senior convertible notes. This repurchase resulted in a pretax loss on debt extinguishment of $75.2 million.
During the quarter, we used a portion of the net proceeds to repurchase 13.5 million shares of our common stock that were used as partial consideration in the purchase of the senior convertible notes. Through the close of business on October 17, we repurchased an additional 3.5 million shares. We'll use some of the remaining proceeds to repurchase the balance of shares that we issued in conjunction with the transactions. Any remaining proceeds from the debt issuance will be held at the holding company for general corporate purposes. This transaction, which only modestly increased our leverage ratio, eliminated 42.1 million potentially dilutive shares.
As a reminder, earlier this year our writing company, MGIC, purchased $132.7 million of our holding company's 9% junior convertible debentures. These debentures are eliminated on our consolidated financial statement. We also repurchased $188.5 million of the 2017 convertible senior notes. Combined, these transactions eliminated 23.9 million potentially dilutive shares.
While credit ratings are not inhibiting our ability to write new primary business, we think that long-term ratings will become more relevant. Therefore, when analyzing 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 and interest expense of the holding company. Of course, we also need to consider the capitals being created at the writing company and its dividend-paying ability 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'll execute such transaction.
With that, let me turn it back to Pat.