Underlying Futures Contract: ICE UK Natural Gas (M)
Depth: Continuous Futures Contract #1 (M1)
Roll Date: Roll on First Day of Delivery Month. Contracts roll on the first day of the delivery month of the expiring or front contract. If the front contract expires before the first day of the deliverty month, then contracts roll on the expiry date instead.
Price Adjustment: Calendar Weighted Method. The price gap between consecutive contracts is smoothed by following a weighted-average process. The continuous contract gradually shifts from representing 100% front and 0% back weighting, to 0% front and 100% back weighting, over a period of 5 days. This price adjustment corresponds to a mechanical roll strategy wherein the trader rolls 20% of the position every day, for 4 days before the roll date.
Methodology: To read more about the Stevens roll date and price adjustment methodology, see the Documentation tab on the Stevens Continuous Futures database home page.
Contract Size: 1,000 therms per day per period
Deliverable Good: Matching Acquiring and Disposing Trade Nominations (buyer from ICEU, seller to ICEU) are input by buyer and seller to National Grid via Gemini before 18:30 on the business day prior to the commencement of the delivery period. Delivery takes place in kilowatt-hours (29.3071 kilowatt hours per therm).
Tick Size: Sterling and pence per therm
Pricing Unit: 5000 therms per day
Columns: Open, High, Low, Settle, Volume, Previous Day Open Interest. Note that Open Interest is always reported for the previous trading day, to avoid lookahead bias.