Tech stocks remained generally in the red Wednesday following the latest statement by the U.S. Federal Reserve, with Apple among the leading, large-cap decliners as $17 billion worth of the tech giant’s bonds began trading.

The Fed said it would maintain its current monetary policy even in the face of some weak national economic data for the month of March.

Apple (AAPL) shares gave up 1% to slip to $438.57 after the company debuted its bond offering on Tuesday afternoon, and the bonds saw high trading volumes on Wednesday morning, sources told MarketWatch.

Goldman Sachs analyst Bill Shope trimmed his earnings estimates slightly for Apple’s next three fiscal years, citing in a note “our updated assumptions around the company’s capital structure and resulting net interest expense.” He left his other estimates unchanged and still rates the stock as a buy.

With Apple maintaining such a presence in the tech sector, the Nasdaq Composite Index (RIXF) was down by 17.5 points at 3,311, while the Philadelphia Semiconductor Index (SOX) fell 0.5% and the Morgan Stanley High-Tech Index (MSH) was down 0.7%.

Facebook (FB) shares were off by 16 cents at $27.61 ahead of what is expected to be a report of strong revenue growth with a flat earnings number. The results are due after the closing bell on Wednesday.

Yelp (YELP) shares were trimmed by 1.3% to $25.66 ahead of the company’s results — also due after the closing bell. Revenue is expected to jump more than 60% with a smaller net loss.

Large-cap tech firms like Hewlett-Packard (HPQ), Microsoft (MSFT), Cisco (CSCO) and NetApp (NTAP) each fell at least 1%.

Cybersecurity technology company Sourcefire Inc. (FIRE) saw its shares rise more than 8%, to $51.84. Late Tuesday, Sourcefire reported weaker-than-expected quarterly results, and gave a forecast that fell short of Wall Street’s expectations. However, much of the negativity was attributed to a temporary slowdown in federal-government sales due to the sequestration crisis in March, and analysts were still generally upbeat about Sourcefire’s prospects.

Trulia (TRLA) shares climbed more than 14% after the online real-estate firm reported a strong jump in first-quarter revenue and issued a projection that was ahead of analysts’ estimates.

Brightcove Inc. (BCOV) shares surged more than 30% after the company reported a 24% revenue gain for the first quarter.

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