To second adq’s point - the market should realize what is happening. Per CFA text, if a company with high growth potential acquires a company with low-moderate growth potential (so high P/E acquires low P/E) the HG company can issue high-value shares to purchase the low-value company, so in effect the amount of earnings are combined but the amount of shares doesnt increase 1 for 1 - ( you need to issue less shares to equal the value of the low-growth firm)
The high growth company issues shares on a less than 1 for 1 basis. So, EPS will in effect go up (earnings are combined 1 for 1, but the amount of shares is less than 1 for 1)
What should happen - in an efficient market - is that the P/E of the combined firm should adjust downward. A high-growth company has purchased a low growth/mature company. There is no additional capital investment, no growth in technology, etc - but the illusion of synergy has been created through an increase in EPS. So, if EPS has increased, P/E should fall to level commensurate with each firms weighted average contribution to earnings.
If the P/E stays the same after the merger, the price of the acquirer’s stock must rise in the open market, and the company has succeeded in “bootstrapping” the price of the stock upwards (which, to the point above, was the case in the dot com era when people A.) didnt know how to value these firms and B.) waves of mergers with low-growth (p/e) companies.
I dont know the question, so I can’t answer why they would have the condition in there