LNG

October 03, 2025

Platts to add JKM balance-month next-day against one-month forward derivative time spread eWindow instrument Oct 16

Platts, part of S&P Global Commodity Insights, will launch an eWindow instrument for JKM balance-month next-day against one-month forward derivative time spread in its Market on Close assessment process, effective Oct. 16.

The new instrument will appear on the eWindow as Platts APAC LNG Derivatives Spr – (Bal Month (Dec)/Jan25) and be available during the pricing period of December JKM from Oct. 16 to Nov. 13. However, Platts will only publish bids, offers and trades for this spread up to Nov. 7.

Platts publishes the JKM balance month-next day derivatives assessment from the first assessment day for a delivery month to the sixth last assessment day for the same delivery month.

Platts has established clearly defined timing guidelines and standards of incrementability that apply when publishing bids and offers in the MOC in order to ensure an orderly and transparent price assessment process, which can be found here: https://www.spglobal.com/content/dam/spglobal/ci/en/documents/platts/en/our-methodology/methodology-specifications/lng/lng-timing-specifications.pdf

Please send all feedback, comments, and questions to LNGeditorialteam@spglobal.com and pricegroup@spglobal.com .

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make comments not marked as confidential available upon request.