McDonald's Corp. (NYSE:MCD) is sounding the alarm on weakening U.S. consumer spending, particularly among lower-income customers pressured by the rising costs of necessities. 

MCD stock is up after earnings. See the real-time price action here. 

Consumers Are Pulling Back Further 

CEO Chris Kempczinski warned restaurant traffic from low-income diners continues to fall at a double-digit pace, a trend that has lasted nearly two years. 

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"We continue to see a bifurcated consumer base with [quick-service restaurant] traffic from lower-income consumers declining nearly double digits in the third quarter, a trend that's ...