Deal flow grew more quickly in June than in May, according to the Mid-Market M&A Conditions Index (MACI), a barometer created by Mergers & Acquisitions and sponsored by PwC. (See related graphic). 

But while the early-stage activity was mirrored in the Completed Deals score on the MACI, it did not translate into deal value and volume for the month, as measured by Thomson Reuters.

So far, April, with a composite score of 57.9, delivered the busiest month of 2015 for the MACI, adding to evidence that the first half of the year may be more robust than the second half.

The MACI is a diffusion index, derived from monthly surveys of approximately 250 executives. Readings above 50 indicate an expansion in M&A activity, and readings below 50 indicate a contraction. 

For the previous edition of the MACI, see Deal Flow in May Grew, But at a Slower Pace.