WESTLAKE VILLAGE, Calif., Jan. 27 /PRNewswire-FirstCall/ -- Diodes Incorporated (Nasdaq: DIOD), a leading manufacturer and supplier of high quality discrete semiconductors, primarily to the communications, computing, industrial, consumer electronics and automotive markets, today announced that it will be added to the S&P SmallCap 600 index and the S&P GICS Semiconductors Sub-Industry index.

"It is great to see that we qualify for the S&P MidCap 600 Index. We have worked very hard at Diodes and have successfully achieved the metrics that place us in the index. Profitable growth is the key to our success, and we will continue on that premise, going forward." said Dr. Keh-Shew Lu, President and CEO of Diodes Incorporated.

The S&P SmallCap 600 index consists of 600 small-cap stocks, defined as companies with market capitalizations between $300 million and $2 billion. New stocks are added to the index based not only on size, but also on financial viability, liquidity, adequate float size, and other trading requirements. Introduced in 1994 in an effort to represent a smaller segment of the market than the S&P MidCap 400 index, the index has been gaining popularity among investment managers as an efficient way to track or invest in the small-cap market segment.

About Diodes Incorporated

Diodes Incorporated (Nasdaq: DIOD) is a leading manufacturer and supplier of high-quality discrete and analog semiconductor products, primarily to the communications, computing, industrial, consumer electronics and automotive markets. The Company's corporate sales, marketing, engineering and logistics headquarters is located in Southern California, with two manufacturing facilities in Shanghai, China, a wafer fabrication plant in Kansas City, Missouri, engineering, sales, warehouse and logistics offices in Taipei, Taiwan and Hong Kong, and sales and support offices throughout the world. Diodes, Inc. recently acquired Anachip Corporation, a fabless analog IC company in Hsinchu Science Park, Taiwan.

Diodes, Inc.'s manufacturing focus is on analog and subminiature surface-mount discrete devices for TV/Satellite set top boxes, power supplies, medical devices, wireless devices, notebooks, flat panel displays, digital cameras, mobile handsets, DC to DC conversion and automotive applications as well as analog power management and hall sensor/motor ICs and PLDs (Programmable Logic Devices) widely used in LCD monitors/TVs, Wireless 802.11 LAN access points, brushless DC motor fans, portable DVD players, datacom devices, ADSL Modems. For further information, including SEC filings, visit the Company's website at http://www.diodes.com.

Safe Harbor Statement Under the Private Securities Litigation Reform Act of 1995: Any statements set forth above that are not historical facts are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Potential risks and uncertainties include, but are not limited to, such factors as fluctuations in product demand, the introduction of new products, the Company's ability to maintain customer and vendor relationships, technological advancements, impact of competitive products and pricing, growth in targeted markets, risks of foreign operations, and other information detailed from time to time in the Company's filings with the United States Securities and Exchange Commission.

CONTACT: Crocker Coulson, Partner, CCG; (818) 789-0100; e-mail: crocker.coulson@ccgir.com or Carl Wertz, Chief Financial Officer, Diodes Incorporated; (805) 446-4800

Recent news releases, annual reports, and SEC filings are available at the Company's website: http://www.diodes.com. Written requests may be sent directly to the Company, or they may be e-mailed to: diodes-fin@diodes.com.

SOURCE  Diodes Incorporated
    -0-                             01/27/2006
    /CONTACT:  Crocker Coulson, Partner of CCG, +1-818-789-0100,
crocker.coulson@ccgir.com, for Diodes Incorporated; or Carl Wertz, Chief
Financial Officer of Diodes Incorporated, +1-805-446-4800/
    /Web site:  http://www.diodes.com /
    (DIOD)

CO:  Diodes Incorporated
ST:  California
IN:  CPR SEM
SU:

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5840 01/27/2006 14:49 EST http://www.prnewswire.com