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Henry Hub Natural Gas Last Day Financial Futures
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Henry Hub Natural Gas Last Day Financial Futures
Code NN
Venue CME Globex, CME ClearPort, Open Outcry (New York)
Hours
(All Times are New York Time/ET)		 CME Globex:  Sunday – Friday 6:00 p.m. – 5:15 p.m. (5:00 p.m. – 4:15 p.m. Chicago Time/CT) with a 45-minute break each day beginning at 5:15 p.m. (4:15 p.m.CT) Trade is Flow per day.
CME ClearPort: Sunday – Friday 6:00 p.m. – 5:15 p.m. (5:00 p.m. – 4:15 p.m. Chicago Time/CT) with a 45-minute break each day beginning at 5:15 p.m. (4:15 p.m. CT) Trade is Flow per day or Flow per month.
Open Outcry: Monday – Friday 9:00 a.m. – 2:30 p.m. (8:00 a.m. – 1:30 p.m. CT)
Contract Unit 2,500 million British thermal units (mmBtu).
Price Quotation U.S. dollars and cents per mmBtu
Minimum Fluctuation $0.001 (0.1¢) per mmBtu
Maximum Daily Price Fluctuation Trading halts and price limits for this contract are subject to the provisions governing Special Price Fluctuation Limits for Henry Hub Natural Gas Futures set forth in Chapter 220.
Floating Price The Floating Price for each contract month will be equal to the NYMEX (Henry Hub) Natural Gas Futures contract final settlement price for the corresponding contract month on the last trading day for that contract month.
Termination of Trading Posting of transactions shall cease on the 3rd business day prior to the contract month.
Listed Contracts The current year plus the next twelve years. A new calendar year will be added following the termination of trading in the December contract of the current year.                                       
On CME Globex®: The current year plus the next eight years.
Settlement Type Financial
Final Settlement Delivery under the NYMEX Henry Hub Swap contract shall be by cash settlement. Final settlement, following termination of posting for a contract month, will be based on the Floating Price. The final settlement price will be the Floating Price calculated for each contract month.
Position Limits NYMEX Position Limits
Rulebook Chapter 508
Exchange Rule These contracts are listed with, and subject to, the rules and regulations of NYMEX.