Capital transactionExplanationChange in adjustment factor
Stock split/
Stock consolidation
In a stock split, the current
number of shares of a corporation is
increased by a specific ratio.
The corporation’s authorized capital and the
total value of the shares remain unchanged.
A stock consolidation is
the opposite of a stock split.    
No1
Listing expansionWhen a company expands its listing,
the number of shares – and thus the
listed share capital – increases.
Decreases
Issuance of bonus sharesBonus shares are issued when
the corporation carries out a capital increase
using the company's own funds.
Unlike an ordinary
capital increase, existing shareholders
do not have to pay anything
for the new shares, since this is merely
a conversion of undistributed retained earnings into
share capital.
No1
Subscription rights discount on
capital increases
A special right of first refusal or subscription
ensures that, following capital increases
or capital adjustments, a shareholder’s
previous shareholding is maintained.
This right is tradable during a specific
period.
Increases
Capital reduction    A capital reduction results in a
reduction in share capital and, consequently, in
equity. (Reduction of the
par value, share buyback, and
cancellation of shares)
Increases
Dividend discountThe portion of a
public company’s reported profit that is
paid out to shareholders
(not relevant for price indices). 
Increases
Fast Entry/
Fast Exit
Typically, additions and
removals from the index are made only as part of
regular adjustments.
In exceptional cases, a
so-called “fast entry” may also occur. If,
for example, there is a large
new issue during the year, the stock may be
added to the index ahead of schedule. If,
on the other hand, an index member experiences a
dramatic deterioration in its
business environment, the
“fast exit” rule allows the stock to be
removed from the index relatively quickly.
Increases or
decreases

1 Rounding differences may result in minor changes to the correction factor.

Index calculation