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发表于 2013-3-19 04:51 PM
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狗了一下,明白了。
United States Natural Gas Fund
The United States Natural Gas Fund® LP (UNG) is an exchange-traded security that is designed to track in percentage terms the movements of natural gas prices. UNG issues units that may be purchased and sold on the NYSE Arca.
The investment objective of UNG is for the daily changes in percentage terms of its units' per unit net asset value ("NAV") to reflect the daily changes in percentage terms of the spot price of natural gas delivered at the Henry Hub, Louisiana as measured by the daily changes in the price of the Futures Contract on natural gas traded on the NYMEX that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case it will be measured by the futures contract that is the next month contract to expire (the "Benchmark Futures Contract"), less UNG's expenses. |
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