The index, calculated by Conference Board research company, is based on a survey of 5,000 households and reflects a level of consumer optimism. The index consists of two components: assessment of the current situation and assessment of consumer expectations (leading indicator). Expectations contribute to about 60% of the index, and the assessment of the current situation to 40%. A higher than expected reading should be taken as positive for USD, while a lower than expected reading should be taken as negative for USD. In June, the index is expected to drop from 134.1 to 132.0.