By Rex Crum, MarketWatch

SAN FRANCISCO (MarketWatch) -- Tech stocks showed signs of shaking off early losses, as big names such as Apple Inc. and Netflix Inc. rose and the overall sector tried to close out May on an upbeat note.

Apple (AAPL) shares rose $3.42, to $454.91, while Netflix (NFLX) was up by $4.40 a share, or 2%, at $227.17. Late Thursday, it was announced that Netflix will be added to the Nasdaq 100 Index (NDX) prior to the stock market opening on June 3. Netflix will replace Perrigo Co. (PRGO), which is moving its listing to the New York Stock Exchange.

Netflix shares are on track to end the week with a slight loss in the wake of the video-streaming company's launch of the new season of "Arrested Development" on Sunday.

Dell Inc. (DELL) was up by 8 cents a share at $13.35 after the company set a July 18 date for a shareholder vote on a proposal by Chief Executive Michael Dell and Silver Lake Partners to take the PC company private.

Chipmaker OmniVision Technologies Inc. (OVTI) saw its shares surge more than 18%, to $18.37, following an upbeat earnings report late Thursday. OmniVision, which makes image sensors for smartphones and other electronic devices, said that for its fiscal fourth quarter, it earned 31 cents a share, excluding one-time items, on revenue of $336.2 million. Analysts had forecast OmniVision to earn 21 cents a share on sales of $318.9 million.

Other gains came from Lexmark International Inc. (LXK), IBM Corp. (IBM), Microsoft Corp. (MSFT) and Google Inc. (GOOG).

The Nasdaq Composite Index (RIXF) cut its losses and was down by just 2 points at 3,489. The Philadelphia Semiconductor Index (SOX) was also down slightly.

Palo Alto Networks Inc. (PANW) was among the top percentage decliners, as the network-security technology company's shares fell more than 9%, to $49.27. Late Thursday, Palo Alto reported a fiscal third-quarter loss and sales that missed Wall Street analysts forecasts.

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