Meaning of Terms
- Henry Hub is the pricing point for natural gas futures contracts traded on the New York Mercantile Exchange (NYMEX). It is a point on the natural gas pipeline system in Erath, Louisiana. It is owned by Sabine Pipe Line LLC.
It interconnects with nine interstate and four intrastate pipelines: Acadian, Columbia Gulf Transmission, Gulf South Pipeline, Bridgeline, NGPL, Sea Robin, Southern Natural Pipeline, Texas Gas Transmission, Transcontinental Pipeline, Trunkline Pipeline, Jefferson Island, and Sabine.
Spot and future prices set at Henry Hub are denominated in $/mmbtu (millions of British thermal units) and are generally seen to be the primary price set for the North American natural gas market. - Liquefied natural gas or LNG is natural gas (predominantly methane, CH4) that has been converted temporarily to liquid form for ease of storage or transport. The energy density of LNG is 60% of that of diesel fuel.
- Liquefied petroleum gas (also called LPG, GPL, LP Gas, or autogas) is a flammable mixture of hydrocarbon gases used as a fuel in heating appliances and vehicles, and increasingly replacing chlorofluorocarbons as an aerosol propellant and a refrigerant to reduce damage to the ozone layer.
- NASDAQ is the world's oldest electronic stock market and the largest stock exchange in the United States. It has no central trading location or exchange floor.
Instead it uses a fully automated, open market, multiple dealer trading system, with many market makers competing to handle transactions in each individual stock.
NASDAQ handles more initial public offerings than any other US exchange. - NASDAQ Composite index tracks the prices of all of the securities traded on the NASDAQ Stock Market. That makes it a broader measure of market activity than the Dow Jones Industrial Average (DJIA) or Standard & Poor's 500-stock Index (S&P 500).
The index is market capitalization weighted, which means that companies whose market values are higher exert greater influence on the index. Market capitalization, or value, is computed by multiplying the total number of existing shares by the most recent sales price.
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