NEW YORK (TheStreet) — Nvidia plunged after Goldman Sachs downgraded the graphics card and chip maker. eBay advances following its appointment of two new directors, ahead of its PayPal spinoff. IBM rises after striking a partnership with China to aid that country's technology expansion. Nvidia fell 3.2% to close at $22.71. Must Read: 10 Stocks Billionaire John Paulson Loves The chip and …
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