Why two semiconductor companies bucked the downtrend

Wednesday the market sold off in the last hour and major indexes ended the day with losses. Semiconductor indexes were underwater pretty much the entire day. The iShares Semiconductor ETF (IGW) ended down 1.72%.

Two well-known semiconductor companies were able to buck the downtrend and close with gains. Who were they and what were the reasons? Are there clues as to else might benefit?

Buried in the semiconductor supply chain are the companies that actually produce the chips for the firms that do much of the design work and handle sales to end users and OEMs.

The two biggest contract manufacturers of semiconductors are Taiwan Semiconductor Mfg. (TSM) and United Microelectronic Corp. (UMC). The item that gave both these stocks a boost was an article on the DigiTimes web site discussing utilization rates.

The article quoted sources that indicated that both companies have

...seen a surge in demand for networking and wireless solutions. TSMC's 65nm-process capacity has been almost fully utilized, while UMC's average utilization rate at its 8-inch fabs remains at above 90%.