Budapest Stock Index (BUX) replaces the unofficial Budapest Stock Exchange
Index, which was used during the initial phases of economic transition.
Currently, the BUX contains 20 stocks. To qualify for the index, a stock
has to comply with three out of five requirements, including a certain
minimum face value of a stock, a defined minimum price, a minimum number
of transactions, and a cumulated minimum turnover of 10% of the registered
capital during the six months preceding the revision of the index.
If more than 25 stocks meet at least three
out of these five requirements at the time of the semi-annual updating
of the index sample (on March 31 and September 30), the index stocks
are selected according to their so-called global rank, which is derived
from a weighted average across the five criteria.