The billings figure is 8.5% higher than the final November 2018 level of USD 1.94 billion, and is 12.1% lower than the December 2017 billings level of USD 2.40 billion. “December billings of North American equipment manufacturers ended 2018 on a positive note,” said Ajit Manocha, president and CEO of SEMI. "Spending for logic and foundry offset the decline in memory investments for the month.”

	Billings (3-mo. Avg.)	Year-Over-Year
July 2018	$2,377.9	4.8%
August 2018	$2,236.8	2.5%
September 2018	$2,078.6	1.2%
October 2018	$2,029.2	0.5%
November 2018 (final)	$1,943.6	-5.3%
December 2018 (prelim)	$2,108.9	-12.1%