NEW YORK (

TheStreet

) --

CHANGE IN RATINGS

Omnivision

(OVTI)

downgraded at Oppenheimer from Outperform to Perform, Oppenheimer said. Company is facing increased competition, which could limit potential gross margin expansion.

Select Comfort

(SCSS)

upgraded at Keybanc from Hold to Buy, Keybanc said. $30 price target. Fundamentals appear to be improving.

READ: Apple's iPhone 5S: What to Expect

Splunk

(SPLK) - Get Report

upgraded at FBR from Market Perform to Outperform, FBR Capital Markets said. $61 price target. Strong product cycle and healthy secular trends can translate to larger deal sizes.

Staples

(SPLS)

downgraded at JP Morgan to Neutral from Overweight, JP Morgan said. $15 price target. Secular pressures appear to have accelerated.

STOCK COMMENTS / EPS CHANGES

Apache

(APA) - Get Report

estimates reduced at UBS to account for the sale of its Egyptian assets, said UBS. Price target is $90.

Splunk

(SPLK) - Get Report

numbers raised at UBS, given the second-quarter beat and raised guidance, said UBS. Price target is boosted to $54.

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This article was written by a staff member of TheStreet.