- Tradeable indexes are available on both the Nordic and local level and consist of the most actively traded stocks in each market. A limited number of constituents guarantees that all the underlying shares of the index have excellent liquidity, which results in an index that is highly suitable as underlying for derivatives products. All OMX tradeable indexes are market weighted price indexes. The composition of the indexes are revised on a semi-annual basis.
- Benchmark indexes are available on the local level. The indexes consist of a portfolio of the largest and most traded shares, representing the majority of sectors, in each market. The weight of the constituent stocks is based on the market value adjusted by the free float, which means that only the part of the share capital that is considered available for trading is included in the index. The indexes serve as an indicator of the overall trend in its market and are intended to offer a cost effective index that an investor can fully replicate. The compositions of the indexes are revised on a semi-annual basis to ensure that it offers high investability and low transaction costs.
- All Share indexes include all the shares listed on the OMX Nordic Exchange. The indexes are available on both the Nordic and local level and reflect the current status and changes in each market.
- Sector indexes on the OMX Nordic Exchange are based on the Global Industry Classification Standard (GICS) developed by Morgan Stanley Capital International Inc. (MSCI) and Standard & Poor's. GICS is an international classification created to meet investors' demand for more precise, exhaustive and standardized classification. All shares on the OMX Nordic Exchange are classified according to GICS. The GICS sector classification is divided into four different levels, comprising sectors, industry groups, industries and sub-industries. The indexes cover all shares listed on the OMX Nordic Exchange and are calculated up to level two (industry groups) in each GICS sector. Local sector indexes are available up to level three (industries).
- List indexes are available for the Nordic Large Cap, Mid Cap and Small Cap lists as well as for the local Mid Cap and Small Cap lists.
- VINX index is an index family that OMX Nordic Exchange calculates in cooperation with the exchange in Oslo. The VINX family covers the All share, Benchmark, Tradeable and Sector indexes, which include companies listed on OMX Nordic Exchange, and on the exchange in Oslo.
- Fixed Income indexes are available for the Swedish and Icelandic markets. The OMRX family is comprised of indexes all designed to show the value growth trend for a certain type of passively managed portfolio of liquid interest-bearing Swedish securities. The composition of the indexes is based on the National Debt Office's official statistics on volumes issued, with the exception of OMRX-MORT which is based on statistics from the Stadshypotek.
OMX Index Types
- Gross Index (GI): To reflect the true performance of an index, dividends are reinvested in the gross index. The reinvestment is carried out by adjusting the pi,t-1 in the denominator in the index with subtraction of dividends from this price on the ex-dividend date t. This adjustment reinvests the dividend in all index constituents in proportion to their respective weights.
- Net Index (NI): Same as the gross index, but the dividend is reinvested after deduction of withholding tax.
- Price Index (PI): In a price index, no cash dividend is reinvested in the index. Hence, the price index only yields the performance of stock price movements. The difference in rate of return for the total and price return version of an index is attributable to the dividend yield of the index.
- Capped Index (Cap): In a capped index, the weight of the index constituents have an upper limit. If an index constituent exceeds the upper limit, its weight in index is adjusted to the upper limit.
