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Today's charts: Cisco, CBS, Marriott

Yahoo Finance is tracking Cisco, CBS and Marriott ahead of their earnings after the bell Wednesday.

Cisco (CSCO) — Wall Street is waiting to see if Cisco’s investment in software will put an end to its yearlong sales decline. The company’s latest move under CEO Chuck Robbins was a $3.7 billion deal to buy AppDynamics reached last month. Analysts are expecting earnings per share of 56 cents on revenue of $11.55 billion. Fiscal second-quarter sales are expected to fall 3.3% from a year ago.

CBS (CBS) — A combination of falling NFL ratings and fewer Thursday night Football games broadcast on its network may weigh on fourth quarter earnings. However, political ads at local stations and its all-access streaming service may help offset that weakness. Analysts are expecting earnings per share of $1.10 on revenue of $3.96 billion. CBS has beaten sales expectations in seven of the last eight quarters.

Marriott (MAR) — Wall Street will be watching how the hotel giant performed this year following its $13 billion acquisition of Starwood Hotels. Barclays, which has an equal weight on the stock, says the company may benefit from higher exposure to luxury after its deal to buy Starwood. The stock is up more than 20% since the Nov. 8 election.

Make sure you check out the final round today at 4 p.m. EST. We’ll break down the earnings results live right here on Yahoo Finance.