Nomura has maintained its neutral rating and 580p target price for chip designer ARM Holdings, but acknowledged that the group's fourth quarter results indicated a "strong beat"."ARM reported a very solid set of numbers this morning, beating the lowered market expectations. Revenues were particularly strong in the processor segment, both in licensing and royalty revenues, driving gross and operating margins significantly above expectations despite the higher-than-expected operating expense," the broker said.However, Nomura says that for the current fiscal year, the global macroeconomic environment remains uncertain: "management is typically conservative with guidance, but this time concerns around the macro-environment and industry confidence seem higher to us."Following a recent trip to the Kurdistan region of Iraq for a Genel Energy analysts trip, UBS has shown its confidence and have upped the target prices for oil and gas groups Afren and Heritage Oil who are both heavily exposed to region."Because of improved confidence around the positive momentum in political negotiations as a result of the Genel visit, we are reducing the risk factor we use to discount our NAV for political risk to 40% from 50%," the broker said.As such, UBS raises its price target for Afren (rated a buy) from 135p to 140p and for Heritage (neural) from 180p to 190p. Peel Hunt has maintained its hold rating and 400p target price on Carpetright but cut its forecasts following the carpet and flooring retailer's profit warning which sent the stock tumbling this morning.Carpetright has announced that full-year underlying pre-tax profit is expected to be below the lower end of forecasts "based on the current pace of sales and margin improvement". As such, Peel Hunt has slashed its full-year pre-tax profit forecasts from £11.9m to just £6m. "The outlook for Q4 remains equally tough, although with more stable pricing and increasing momentum from internal initiatives, Carpetright looks to deliver positive LFL sales momentum," said analyst John Stevenson.BC