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Henry Hub Natural Gas Financial Calendar Spread Options
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Type
 
Henry Hub Natural Gas Financial Calendar Spread (1 month) Option
Underlying Futures Henry Hub Natural Gas Futures (NG)
Product Symbol G4
Venue CME ClearPort and Open Outcry (New York)
Hours
(All Times are New York Time/ET)		 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)
Open Outcry: Monday – Friday 9:00 AM to 2:30 PM (8:00 AM to 1:30 PM CT)
Contract Unit The underlying futures spread is defined as the settlement price of the first nearby underlying Natural Gas  futures contract less the settlement price of the second nearby Natural Gas futures contract. A Henry Hub Natural Gas Financial Calendar Spread Put Option traded on the Exchange represents the cash difference between the strike price and the underlying futures spread multiplied by 10,000 MMBtu, or zero, whichever is greater. A Henry Hub Natural Gas Financial Calendar Spread Call Option traded on the Exchange represents the cash difference between the underlying futures spread and the strike price multiplied by 10,000 MMBtu, or zero, whichever is greater.
Price Quotation U.S. dollars and cents per mmBtu.
Option Style European
Minimum Fluctuation $0.001 per MMBtu
Expiration of Trading Business Day Prior to termination of first underlying futures contract
Listed Contracts Options on one month calendar spread are available for the next 60 expirations.
Strike Prices Ten strike prices in increments of $0.05 per MMBtu above and below the at-the-money strike price; and additional five strike prices in increments of $0.10 per MMBtu above and below the highest and lowest five increment as described before.  Strike price boundaries are adjusted according to futures price movements.
Settlement Type Financial
Position Limits NYMEX Position Limits
Rulebook Chapter 399
Exchange Rule These contracts are listed with, and subject to, the rules and regulations of NYMEX.