Special dividend

It is used where one side is carrying surplus cash, or an asset already under offer, that its shareholders do not think should be folded into the split. Re arguing the exchange ratio to compensate is possible and is a poor way to do it, because the ratio then embeds two separate judgements and neither board can see which is which.

Paying the value out first, then striking the ratio on what each side actually brings to the combination, separates value being contributed from value being taken out beforehand. It also cleans up the contribution analysis, since surplus cash generates no EBITDA and no earnings and therefore distorts every operating row of that table.

On surplus cash it is value neutral, on a condition: the dividend has to reduce equity value by exactly the amount paid and change nothing about the business. If the cash was funding something, or if paying it forces borrowing, that no longer holds and the negotiation changes with it.

Where it stops being neutral is the part to watch. A special dividend paid to one side's shareholders without a corresponding adjustment to the ratio is a cash premium wearing different clothes, delivered while the announcement still says nil premium. The first question to ask of any deal containing one is whether the ratio was struck on post dividend values.