Here comes ISM manufacturing ...

The Institute of Supply Management will release its manufacturing index for June at 10 a.m. ET.

Economists forecast that the index was unchanged at 51.3, according to Bloomberg.

Here's a preview from Bank of America Merrill Lynch:

"The ISM manufacturing index likely edged down to 51.0 in June from 51.3 in May, reflecting another month of modest expansion in national activity. The dollar strengthened over the course of the month, which is a headwind for goods producers.

Furthermore, uncertainty owing to Fed policy and the UK referendum likely weighed on investment demand. That said, consumers are showing signs of renewed life, supporting broader domestic activity."

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