BSE was one of the first in the world who started to use free-float capitalisation weightings instead of the traditional market capitalisation weightings in October 1999.
The BUX index is also a tradeable index. Its futures and option products are available in BSE’s derivatives section.
| Profile | |
| Official name | The Share Index of the Budapest Stock Exchange Co. Plc. | 
| Type | Total return index, taking account of dividend payouts | 
| ISIN | HU0005060210 | 
| Weighting | Share index with market capitalisation weighting corrected for free float | 
| Currency of calculation | Hungarian Forint (HUF) | 
| Structure | Consists of a variable number of shares up to a maximum of 25 | 
| Review | Twice a year - March, September | 
| Frequently of calculation | Continuous | 
| Ticker codes | Reuters: .BUX Bloomberg: BUX | 
| Base value | January 2, 1991 = 1000 points | 
| Base capitalization | HUF 14,639,314,708 | 
| Tradeable products | BUX index futures contract BUX index options contract |