RT — Earnings Release 2025

Mar 4, 2026

瑞昱半導體 2025年第四季法人說明會 Realtek 4Q25 Earnings Release

4Q25 Net Sales (NT$ mn)

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QoQ -10.9%
YoY -0.3%
29,491
26,345 26,278
4Q24 3Q25 4Q25
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(%) 4Q25 Gross Margin

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QoQ -1.6ppt
YoY -0.3ppt
49.7%
48.3%
48.1%
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4Q24 3Q25 4Q25
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(NT$ mn) 4Q25 Operating Expenses

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QoQ -10.7%
YoY +4.5%
11,538
10,301
9,858
R&D Expenses
8,644
7,694
7,461 Administration Expenses
Selling Expenses
1,460
1,373
1,419
977 1,435 1,233
4Q24 3Q25 4Q25
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4Q25 Operating Income (NT$ mn) / 4Q25 Operating Margin (%)

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QoQ -1.7ppt
YoY -2.0ppt
10.9% 10.6%
8.9%
3,113 Operating Income
2,879
2,335
Operating Margin
4Q24 3Q25 4Q25
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4Q25 Net Income (NT$mn) / 4Q25 Net Profit Margin (%)

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QoQ -1.5ppt
YoY -2.8ppt
12.9%
11.6%
10.1%
3,400 3,429 Net Income
2,654
Net Profit Margin
4Q24 3Q25 4Q25
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4Q25 EPS (NT$)

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QoQ -$1.52
YoY -$1.46
$6.63 $6.69
$5.17
4Q24 3Q25 4Q25
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2025 Net Sales (NT$ mn)

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YoY +8.2%
122,706
113,394
2024 2025
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(%) 2025 Gross Margin

YoY -0.4ppt

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50.4%
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50.0%

2024

2025

(NT$ mn) 2025 Operating Expenses

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YoY +7.7%
47,014
43,660
35,125
R&D Expenses
33,544
Administration Expenses
Selling Expenses
5,905
5,324
4,793 5,984
2024 2025
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2025 Operating Income (NT$ mn) /2025 Operating Margin (%)

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YoY -0.2ppt
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11.9% 11.7%
14,360
13,502
2024 2025
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Operating Income Operating Margin

2025 Net Income (NT$mn) / 2025 Net Profit Margin (%)

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YoY-1.5ppt
13.5%
12.0%
15,292
14,753
2024 2025
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Net Income Net Profit Margin

2025 EPS (NT$)

YoY-$1.05

$29.82 $28.77 2024 2025

4Q25 合併損益表 (查核數)

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註: 數字加總不等，因四捨五入造成

2025合併損益表 查核數 ( )

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註: 數字加總不等，因四捨五入造成

4Q25 合併資產負債表 (查核數)

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註: 數字加總不等，因四捨五入造成

4Q25 合併現金流量表 (查核數)

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註: 數字加總不等，因四捨五入造成

4Q25 Consolidated Income Statement (Audited)

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Note : Sums may not equal totals due to rounding.

2025 Consolidated Income Statement (Audited)

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Note : Sums may not equal totals due to rounding.

4Q25 Consolidated Balance Sheet (Audited)

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Note : Sums may not equal totals due to rounding.

4Q25 Consolidated Cash Flow Statement (Audited)

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Note : Sums may not equal totals due to rounding.

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Thank You