MONOLITHIC POWER SYSTEMS, INC. annual report, FY2013

Monolithic Power Systems, Inc. — FY2013 Form 10-K

Reporting period: Fiscal year ended December 31, 2013; filed March 10, 2014. The company designs and sells analog and mixed-signal power-management semiconductors, primarily through a fabless manufacturing model. Its principal product family is DC-to-DC converters.

Financial performance

MetricFY2013FY2012Change
Revenue$238.1 million$213.8 million+11.4%
Gross profit / margin$127.9 million / 53.7%$113.1 million / 52.9%Margin +0.8 percentage points
Operating income / margin$23.9 million / 10.1%$17.3 million / 8.1%Improved
Net income$22.9 million$15.8 million+45.3%
Diluted EPS$0.59$0.43+$0.16
Operating cash flow$60.7 million$24.9 million+$35.8 million

Revenue growth reflected higher shipments of both product families, partly offset by lower average selling prices. DC-to-DC products generated $211.3 million, or 88.8% of revenue, up 12.0%; lighting-control products generated $26.8 million, up 6.7%. Management attributed improved gross margin primarily to product mix and lower inventory reserves. Research and development expense was $49.7 million; selling, general and administrative expense was $54.6 million. The effective tax rate was 4.6%, compared with 11.9% in 2012, with foreign earnings taxed at lower rates and stock-related tax benefits among the cited factors.

Fourth-quarter snapshot

Q4 2013 revenue was $63.6 million, versus $48.2 million in Q4 2012. Net income was $7.5 million, compared with $0.2 million; diluted EPS was $0.19 versus $0.01. Q4 gross profit was $34.3 million and operating income was $8.0 million.

Liquidity, cash flow and capital

At year-end, cash and cash equivalents were $101.2 million and short-term investments were $125.1 million; working capital was $253.6 million. Including $9.9 million of long-term auction-rate securities, cash, cash equivalents and investments totaled $236.2 million. Total liabilities were $45.5 million, and the balance sheet reports no borrowings or debt balance. Operating cash flow included the $9.5 million O2 Micro litigation payment, which was recorded as a liability pending further appeal.

Investing activities used $54.3 million, mainly for net purchases of investments and property and equipment. Financing activities provided $18.9 million, including $40.0 million from stock-option exercises and employee stock purchases, partly offset by $20.6 million of share repurchases. The company had $79.4 million remaining under its $100 million repurchase authorization at year-end. It paid no dividend in 2013; the $35.7 million 2012 payment was a special dividend.

Material changes and outlook

  • Revenue, operating income and net income increased year over year, while gross margin improved. DC-to-DC products remained the main growth driver.
  • Cash and short-term investments rose to $226.3 million from $160.6 million; working capital increased by $62.8 million.
  • Operating cash flow improved substantially, though it included the disputed O2 Micro cash receipt and was partly offset by higher receivables and inventory.
  • Management expects to continue developing products in existing and new categories, including power-management products, and considers cash from operations and existing liquidity sufficient for the next 12 months. The filing gives no quantified 2014 revenue or earnings guidance.

Risks, contingencies and unusual items

  • Customer and geographic concentration: About 90% of FY2013 revenue was attributable to customers in Asia. The largest distributor represented 32% of revenue; another distributor represented 10%. Sales are generally purchase-order based, without long-term customer commitments.
  • Supply and inventory: The company relies on a limited group of third-party wafer, assembly and test suppliers, with capacity constraints having affected sales previously. Forecast-based inventory purchases expose it to shortages, excess inventory and write-downs.
  • Litigation: O2 Micro appealed to the U.S. Supreme Court after lower-court rulings affirmed an award to MPS. MPS received $9.5 million in November 2013 but recorded it as a current liability because it may have to return some or all of the payment. The filing also describes continuing exposure to intellectual-property claims and potentially significant legal expenses.
  • Tax examination: The IRS audit of 2005–2007 returns includes a proposed adjustment of up to $10.5 million, plus interest and possible penalties, if the IRS prevails on all disputed matters. MPS said it believed its positions would be sustained; an IRS Appeals meeting was scheduled for March 2014.
  • Investment liquidity: $9.9 million of student-loan auction-rate securities remained illiquid at year-end, with fair value based on significant unobservable inputs. The filing warns that a 10% fair-value decline could affect earnings by about $1.0 million.
  • Other risks: Semiconductor cyclicality, falling selling prices, competition, product quality, foreign-exchange and China-related risks, and dependence on specialized engineering talent could adversely affect results. MPS reported effective disclosure and financial-reporting controls, with unqualified audit opinions on its financial statements and internal controls.

Key facts investors should verify

  • Resolution of the O2 Micro Supreme Court appeal and whether any portion of the $9.5 million must be repaid.
  • Outcome of the IRS audit and Appeals process, including any effect on taxes, credits or cash flows.
  • Customer and distributor concentration, end-market demand, and whether revenue growth is sustained without further average-selling-price pressure.
  • Supplier capacity, inventory levels and reserves, and the cash-flow contribution excluding the O2 Micro receipt.
  • Liquidity and valuation developments for the auction-rate securities, alongside the company’s repurchase activity and share dilution from equity awards.