The decrease in CCOP net revenue between fiscal 2012 and 2011 was due was
primarily due to uncertainty in the macro-economic environment in
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these products in fiscal 2011 and in our Circuit Packs and ROADMs product lines. The decline in operating income was primarily due to decreased net revenue, paired with increased investments in R&D.
Optical Security and Performance Products
OSP operating margin increased 0.4 percentage points during fiscal 2013 to 35.6% from 35.2% in fiscal 2012. The increase was primarily driven by reductions in SG&A expense due to a one-time benefit from a litigation settlement related to an insurance claim in fiscal 2013 and due to lower labor and benefits expense. This was partially offset by (i) a decline in gross margin driven by factory underutilization and charges associated with the announced exit of certain product lines and (ii) an increase in R&D expense primarily due to spending on key innovation initiatives. The decrease in OSP net revenue between fiscal 2012 and fiscal 2011 was primarily due reduced demand for our gesture recognition products, which was partially offset by increases in our currency products. The decline in operating income was primarily due to reduced demand in gesture recognition products and a decline in pricing for certain currency products, resulting in reduced absorption of manufacturing costs.
Liquidity and Capital Resources
Our cash investments are made in accordance with an investment policy approved by the Audit Committee of our Board of Directors. In general, our investment policy requires that securities purchased be rated A-1/P-1, A/A2 or better. In November, 2012, the policy was amended to allow an allocation to securities rated A-2/P-2, BBB/Baa2 or better, with such allocation not to exceed 10% of any investment portfolio. Securities that are downgraded subsequent to purchase are evaluated and may be sold or held at management's discretion. No security may have an effective maturity that exceeds 37 months, and the average duration of our holdings may not exceed 18 months. At any time, no more than 5% or
$5 million(whichever is greater) of each investment portfolio may be concentrated in a single issuer other than the U.S. or sovereign governments or agencies. Our investments in debt securities and marketable equity securities are primarily classified as available-for-sale investments or trading assets and are recorded at fair value. The cost of securities sold is based on the specific identification method. Unrealized gains and losses on available-for-sale investments are reported as a separate component of stockholders' equity. We did not hold any investments in auction rate securities, mortgage backed securities, collateralized debt obligations, or variable rate demand notes at June 29, 2013and virtually all debt securities held were of investment grade (at least BBB-/Baa3). As of June 29, 2013, U.S. entities owned approximately 82.6% of our cash and cash equivalents, short-term investments and restricted cash.