Business Highlights Fourth quarter sales increased 17% Q/Q and increased 1% Y/Y SSD controller sales: 4Q increased 15% to 20% Q/Q and increased 0% to 5% Y/YeMMC+UFS controller sales: 4Q increased 25% to 30% Q/Q and increased 20% to 25% Y/YSSD solutions sales: 4Q decreased 5% to 10% Q/Q and decreased 45% to 50% Y/Y Announced annual cash dividend of $2.00 per ADS Financial Highlights  4Q 2023 GAAP4Q 2023 Non-GAAP•   Net sales$202.4 million (+17% Q/Q, +1% Y/Y)$202.4 million (+17% Q/Q, +1% Y/Y)•   Gross margin4 ...

Exhibit 99.1 Silicon Motion Announces Results for the Period Ended December 31, 2023 NEWS RELEASE Business Highlights • Fourth quarter sales increased 17% Q/Q and increased 1% Y/Y • SSD controller sales: 4Q increased 15% to 20% Q/Q and increased 0% to 5% Y/Y • eMMC+UFS controller sales: 4Q increased 25% to 30% Q/Q and increased 20% to 25% Y/Y • SSD solutions sales: 4Q decreased 5% to 10% Q/Q and decreased 45% to 50% Y/Y • Announced annual cash dividend of $2.00 per ADS Financial Highlights | --- | --- | --- ...

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After reaching an important support level, Silicon Motion Technology Corporation (SIMO) could be a good stock pick from a technical perspective. SIMO recently experienced a "golden cross" event, which saw its 50-day simple moving average breaking out above its 200-day simple moving average.A golden cross is a technical chart pattern that can signify a potential bullish breakout. It's formed from a crossover involving a security's short-term moving average breaking above a longer-term moving average, with th ...

Financial Data and Key Metrics Changes - Revenue grew 23% sequentially to $172 million in Q3 2023, with earnings per ADS increasing 67% sequentially to $0.63 [10][21] - Gross margins remained stable at 42.5%, while operating margin increased to 13.8% from 8.3% in the previous quarter [21][24] - Cash and cash equivalents increased to $350.3 million from $305 million at the end of the previous quarter [22] Business Line Data and Key Metrics Changes - SSD controller sales grew 5% to 10% sequentially, while eMMC and UFS controller sales more than doubled due to holiday season demand and normalizing inventory levels [20][21] - SSD solutions sales decreased by 5% to 10% sequentially [20] Market Data and Key Metrics Changes - Inventory levels across end markets are normalizing, with improved OEM order activity leading to strong revenue growth [10][12] - The PC and smartphone markets are expected to see a rebound, with inventory levels normalizing after a year of excess [12][13] Company Strategy and Development Direction - The company aims to maintain technology leadership and expand into additional markets such as enterprise, automotive, and IoT [9][11] - Focus on introducing next-generation solutions for SSD and embedded markets to drive long-term growth [11][12] - The company is committed to investing in R&D to support technology leadership, with elevated operating expenses expected in the near term [21][25] Management's Comments on Operating Environment and Future Outlook - Management expressed optimism about returning to growth in 2024 as end market demand stabilizes and inventory levels normalize [19][22] - The company anticipates a gradual recovery in gross margins as NAND makers' financial health improves [24][25] Other Important Information - The company filed a Notice of Arbitration against MaxLinear for breaches of the merger agreement, seeking a termination fee of $160 million [7] - A new annual dividend of $2 per ADS was declared, with the first installment to be paid in November [22] Q&A Session Summary Question: How is the increased adoption of QLC helping the company? - Management noted that all NAND makers are expected to adopt QLC NAND by late 2024, which will initially transition to client SSDs and is projected to significantly impact the market by 2025 [29] Question: What would it take for the company to become more aggressive in stock buybacks? - The Board is continuously evaluating ways to return cash to shareholders, including share repurchase, but currently, there is no program in place [30] Question: What is the outlook for gross margins? - Management indicated that gross margins are expected to gradually improve as the market recovers, but specific guidance for next year will be provided in the next earnings call [34][35] Question: What is the sustainability of the recovery in the eMMC and UFS market? - Management confirmed that channel inventory has normalized and expects growth in both eMMC and UFS products, with a strong market share position anticipated for 2024 [48] Question: What is the current market share situation for client SoC controllers? - The company maintains a stable market share around 30% and expects to gain further market share in 2024 [55]

Exhibit 99.1 Silicon Motion Announces Results for the Period Ended September 30, 2023 NEWS RELEASE Business Highlights • Third quarter sales increased 23% Q/Q and decreased 31% Y/Y • SSD controller sales: 3Q increased 5% to 10% Q/Q and decreased 10% to 15% Y/Y • eMMC+UFS controller sales: 3Q increased 100% to 105% Q/Q and decreased 40% to 45% Y/Y • SSD solutions sales: 3Q decreased 5% to 10% Q/Q and decreased 30% to 35% Y/Y Financial Highlights | --- | --- | --- | --- | |-------|---------------------------- ...

Exhibit 99.1 Silicon Motion Announces Results for the Period Ended March 31, 2023 NEWS RELEASE Business Highlights • First quarter sales decreased 38% Q/Q and 49% Y/Y • SSD controller sales: 1Q decreased 20% to 25% Q/Q and 35% to 40% Y/Y • eMMC+UFS controller sales: 1Q decreased 70% to 75% Q/Q and 75% to 80% Y/Y • SSD solutions sales: 1Q decreased 30% to 35% Q/Q and approximately flat Y/Y Financial Highlights | --- | --- | --- | --- | --- | |-------|-------|--------------------------------|----------------- ...

Revenue and Sales - In 2022, 45% to 50% of Silicon Motion's net sales were from SSD controllers, 35% to 40% from eMMC and UFS controllers, and 5% to 10% from SSD solutions[124]. - Sales to the five largest customers represented approximately 67% of net revenue in 2022, with significant customers including Micron and SK Hynix[128]. - Approximately 79% of Silicon Motion's sales in 2022 were attributable to its direct sales force[130]. - Total revenue for the year ended December 31, 2022, increased by 3% to $945.9 million from $922.1 million in the prior year[159]. - In 2022, the company's net sales increased by 3% year-over-year to approximately US$945.9 million, with Mobile Storage revenue rising by 2% and SSD controller sales decreasing by 5% to 10%[184]. - The company expects higher net sales generally in the second half of each year due to increased demand during year-end holiday seasons[163]. Expenses and Profitability - Research and development expenses for Silicon Motion were approximately US$188.5 million in 2022, up from US$164.3 million in 2021[135]. - Total operating expenses increased by 17% to $251.9 million from $214.9 million in the prior year[159]. - Operating profit decreased by 13% to $213.9 million from $245.9 million in the prior year[159]. - Diluted earnings per ADS decreased by 9.6% to $5.17 from $5.72 in the prior year[159]. - Gross profit as a percentage of revenue decreased by 0.8 percentage points to 49.2% from 50.0% in the prior year[159]. - Gross profit as a percentage of net sales decreased to 49% in 2022 from 50% in 2021, primarily due to significant inventory value write-downs related to SSD solutions[185]. Research and Development - The company has 2,490 patents and 1,203 pending applications worldwide as of March 31, 2023[135]. - Research and development expenses increased by 15% year-over-year to approximately US$188.5 million in 2022, with salary and benefits rising by 8% to approximately US$106.7 million[186]. Cash Flow and Investments - Net cash provided by operating activities was approximately US$83.9 million for 2022, down 52.0% from US$174.7 million in 2021[199]. - Net cash used in investing activities was approximately US$32.9 million in 2022, compared to US$28.2 million in 2021, indicating an increase of 26.4%[201]. - Net cash used in financing activities rose significantly to approximately US$183.1 million in 2022, compared to US$99.7 million in 2021, an increase of 83.7%[202]. - Cash and cash equivalents decreased by US$127.9 million to approximately US$232.2 million as of December 31, 2022, compared to the previous year[195]. Tax and Legal Matters - The total amount of unrecognized tax benefits as of December 31, 2022, was US$37.1 million, with accrued interest and penalties of US$6.8 million[176]. - The total amount of valuation allowance for deferred tax assets as of December 31, 2022, was US$20.2 million[175]. - The company has obtained a tax concession from the Cayman Islands for a period of 20 years from March 1, 2005, exempting it from taxes on profits, income, or gains[287]. - The company does not have a comprehensive income tax treaty with the United States, which may affect tax implications for U.S. holders[268]. Shareholder and Stock Information - The company repurchased 1.6 million ADSs for US$128.8 million at an average price of US$79.18 per ADS in 2022[205]. - The company repurchased $178.9 million of its ADSs at an average price of $81.91 per ADS under a $200 million repurchase plan announced in December 2021[316]. - As of March 31, 2023, there were 133,629,072 ordinary shares outstanding[250]. - No shareholder holds more than 5% of the company's outstanding ordinary shares[252]. Employee and Management Information - As of December 31, 2022, the total number of employees was 1,643, with 1,262 in Research and Development, representing a growth of 18.5% from 1,065 in 2021[246]. - The aggregate compensation for directors and senior executive officers for the year ended December 31, 2022, was approximately US$5.85 million[237]. - The company has no collective bargaining arrangements with employees and considers employee relations to be good[247]. Corporate Governance - The board of directors has established an audit committee, a compensation committee, and a nominating and corporate governance committee[229]. - The audit committee is responsible for overseeing the financial reporting processes and the audits of consolidated financial statements[230]. - The compensation committee reviews the performance and development of management in achieving corporate goals[231]. - The independent registered public accountants for the company are Deloitte & Touche, who have served since 2021[310]. Market and Competition - The company expects increased competition in the semiconductor market due to rapid technological changes and evolving industry standards[141].

Silicon Motion Announces Results for the Period Ended December 31, 2022 NEWS RELEASE Business Highlights • Fourth quarter sales decreased 20% Q/Q and 24% Y/Y and FY2022 sales grew 3% Y/Y • SSD controller sales: 4Q approximately flat Q/Q and FY2022 decreased 5% to 10% Y/Y • eMMC+UFS controller sales: 4Q decreased 35% to 40% Q/Q and FY2022 grew 15% to 20% Y/Y • SSD solutions sales: 4Q grew 20% to 25% Q/Q and FY2022 grew 30% to 35% Y/Y • Both SSD and eMMC+UFS controllers outperformed PC and smartphone markets ...