Why companies do it
A reverse stock split may be carried out to raise the trading unit price of a stock that has fallen too low, or to satisfy listing maintenance requirements. For example, consolidating 10 shares into 1 reduces the shares outstanding to one-tenth, and in theory the share price rises to ten times its pre-consolidation level.
What to keep in mind
Because the company's total assets and profits do not change before and after the consolidation, its underlying value does not increase or decrease. However, depending on the number of shares held, fractional (odd-lot) shares may arise, which can come with restrictions on rights and how they can be cashed out. If a stock you hold undergoes a reverse split, it is important to check the details in advance.
