Quick Answer
DIODES INC /DEL/ reported R&D Expense of $162.18 million for fiscal year 2025.
DIODES INC /DEL/ R&D Expense — Annual History
| Fiscal Year | R&D Expense | YoY Change |
|---|---|---|
| 2025 | $162.18M | +21.0% |
| 2024 | $134.05M | -0.6% |
| 2023 | $134.87M | +6.8% |
| 2022 | $126.32M | +6.0% |
| 2021 | $119.20M | +26.4% |
| 2020 | $94.29M | +6.5% |
| 2019 | $88.52M | +2.6% |
| 2018 | $86.29M | +10.8% |
| 2017 | $77.88M | +11.4% |
| 2016 | $69.94M | +22.6% |
| 2015 | $57.03M | +9.4% |
| 2014 | $52.14M | +7.9% |
| 2013 | $48.30M | +43.1% |
| 2012 | $33.76M | +24.0% |
| 2011 | $27.23M | +2.4% |
| 2010 | $26.58M | +11.9% |
| 2009 | $23.76M | +8.6% |
| 2008 | $21.88M | — |
Quarterly R&D Expense
| Quarter Ending | R&D Expense | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $41.86M | +24.2% | +3.3% |
| June 30, 2025 | $40.54M | +22.1% | +4.9% |
| March 31, 2025 | $38.63M | +13.7% | +14.7% |
| September 30, 2024 | $33.69M | -1.1% | +1.5% |
| June 30, 2024 | $33.19M | -4.1% | -2.3% |
| March 31, 2024 | $33.96M | +2.2% | -0.3% |
| September 30, 2023 | $34.07M | +3.9% | -1.6% |
| June 30, 2023 | $34.61M | +12.5% | +4.1% |
- DIODES INC /DEL/ showed an increase of +21.0% in R&D Expense compared to the prior fiscal year.
- Over the 2008–2025 period, DIODES INC /DEL/’s r&d expense has grown by 641.1% (from $21.88 million to $162.18 million).
- The most recent figure is from DIODES INC /DEL/’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 10, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
Last verified: