Business context and reporting period
Silicon Laboratories Inc. is a fabless semiconductor company selling mixed-signal ICs, software and connectivity solutions across IoT, infrastructure, broadcast and access markets. The filing is the Form 10-K for the 52-week fiscal year ended December 29, 2018, with fourth-quarter results for the 13 weeks ended that date. This differs from the request metadata’s “2017 Q4.”
Financial performance and position
| Metric | FY 2018 | FY 2017 |
|---|---|---|
| Revenue | $868.3 million | $768.9 million |
| Gross margin | $521.4 million; 60.1% | $454.2 million; 59.1% |
| Operating income | $85.2 million; 9.8% of revenue | $85.0 million; 11.1% |
| Net income | $83.6 million; diluted EPS $1.90 | $47.1 million; diluted EPS $1.09 |
| Cash from operations | $173.5 million | $189.5 million |
| Cash, cash equivalents and short-term investments | $613.8 million | $764.0 million |
| Convertible debt | $400 million principal; $354.8 million carrying value | $400 million principal; $341.9 million carrying value |
FY 2018 revenue grew 12.9%. IoT revenue rose 17.4% to $463.8 million and Infrastructure revenue rose 31.1% to $199.5 million; Broadcast fell 7.6% to $141.4 million and Access fell 7.5% to $63.5 million. Operating expenses increased 18.1% to $436.2 million, led by higher personnel, intangible amortization and acquisition-related costs. The effective tax rate was negative 15.8% versus 38.8% in 2017, reflecting tax reform-related items and other discrete benefits; this helped lift net income despite nearly flat operating income.
Fourth-quarter FY 2018 revenue was $215.5 million, gross margin $130.2 million, operating income $18.4 million and net income $15.1 million. In Q4 FY 2017, the company reported revenue of $201.0 million, gross margin of $119.3 million, operating income of $26.4 million and a net loss of $4.9 million.
At year-end, working capital was $681.8 million; cash and short-term investments totaled $613.8 million. Operating cash flow was $173.5 million, investing cash outflow $197.0 million and financing cash outflow $48.8 million. The company had no borrowings under its $300 million revolving credit facility and reported compliance with its covenants. Inventory was $75.0 million (79 days); receivables were $73.2 million (31 days sales outstanding).
Material changes versus the prior comparable period
- Revenue increased $99.4 million, primarily from IoT and Infrastructure demand and the addition of Z-Wave business revenue. Product unit volumes rose 11.5%; average selling prices rose 1.1%.
- Gross margin percentage improved by 1.0 percentage point, principally from product mix, including higher Infrastructure sales. FY 2018 gross margin included $6.1 million of acquired-inventory fair-value charges.
- Operating income was essentially unchanged as operating expense growth absorbed higher gross profit. R&D rose 13.8% to $238.3 million; SG&A rose 23.9% to $197.8 million.
- Operating cash flow declined $16.0 million. Investing outflow was lower than in 2017, partly because of greater net sales and maturities of investments; acquisition payments increased.
- The Z-Wave acquisition closed April 18, 2018 for approximately $242.6 million in cash. It contributed $37.0 million of revenue after acquisition and added $109.1 million of goodwill.
- ASC 606 adoption accelerated recognition of certain distributor sales. The company reported that adoption increased FY 2018 revenue by $12.9 million and net income by $6.6 million; prior periods were not restated.
Outlook, commentary, risks and contingencies
For Q1 FY 2019, management guided to revenue of $183–$193 million, gross margin of 60.0%, operating expenses of $114.0 million, an effective tax rate of 10.0%, and diluted loss per share of $0.11–$0.01. Management expected R&D and SG&A expenses to increase in absolute dollars versus Q4 FY 2018. FY 2019 capital expenditures were estimated at $22–$24 million. No full-year revenue or earnings guidance is provided in the filing.
Management described a semiconductor-industry downturn, citing weaker macroeconomic conditions, China factory activity, elevated customer inventories, trade tariffs and economic uncertainty. Key risks include cyclical demand and price erosion; customer order changes and long design-in cycles; reliance on distributors (71% of FY 2018 revenue) and Arrow as the sole global distributor; dependence on third-party foundries and Asian assembly and test providers; product qualification, supply and yield risks; and competition, cybersecurity, intellectual property and acquisition-integration risks. The ten largest end customers represented 20% of revenue, with no individual end customer above 10%.
The $400 million 1.375% convertible senior notes mature in March 2022; the company intends to settle principal in cash upon conversion, but conversion or inability to do so could affect dilution and EPS. A Norwegian tax assessment under appeal could result in approximately $16.2 million of additional tax, and the tax authority may request an advance payment of approximately $9 million. The company believes its position is more likely than not to be sustained. Cresta and Bandspeed patent disputes were settled in 2018 with licenses and non-material payments; other proceedings were not expected to have a material adverse effect. The $6.0 million par value of auction-rate securities remained illiquid, with failed auctions and uncertain availability before maturity.
Most important facts for investors to verify
- Confirm the period: this filing covers FY 2018 and includes Q4 FY 2018, not FY 2017 Q4.
- Assess underlying profitability and comparability after ASC 606’s distributor revenue timing change and the unusually favorable FY 2018 tax benefit.
- Track IoT and Infrastructure growth against declines in Broadcast and Access, and monitor whether operating expense growth is translating into higher operating income.
- Review the Q1 FY 2019 outlook against actual results, particularly revenue, margins, expense levels and the guided diluted loss.
- Evaluate liquidity and debt obligations, including the 2022 convertible notes, the unused revolver and the company’s stated cash-settlement intent.
- Monitor the Norwegian tax appeal, auction-rate security liquidity, Z-Wave integration and goodwill/intangible asset carrying values.
- Consider distributor concentration and exposure to Asia-based manufacturing, assembly and testing, as well as the company’s characterization of industry conditions as a downturn.