Symantec Corp. and Akamai Technologies Inc. are slated to post quarterly results, with analysts looking for the security software maker and the Internet content-delivery company to post earnings declines.

Among the companies whose shares are expected to see active trade in Wednesday's session are Aflac Inc., ConocoPhillips and General Dynamics Corp.

A roundup of the latest corporate earnings reports and what companies are saying about future quarters.

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The credit-card issuer is expected to post an increase in profit while security-software maker Symantec is estimated to report a double-digit earnings decline.