Procedures

Trading calendar

Natural gas segment: Trading calendar 2025

• Previous versions

   Natural Gas Segment (03.01.2018 - 09.04.2018)

   Natural gas segment (10.04.2018 - 31.12.2018)

   Natural gas segment (01.01.2019 - 01.10.2019)

   Natural gas segment (from 01.10.2019)

   Natural gas segment: Trading calendar 2019

   Natural gas segment: Trading calendar 2020 (01.01.2020 - 04.02.2020)

   Natural gas segment: Trading calendar 2020

   Natural gas segment: Trading calendar 2021

   Natural gas segment: Trading calendar 2022

  Natural gas segment: Trading calendar 2023

  Natural gas segment: Trading calendar 2024

  Natural gas segment: Trading calendar 2025

Products list and specifications

HUDEX Natural gas Product list and specification valid from 06.10.2025

HUDEX Natural gas Product list and specification valid from 06.10.2025 - with track changes

ISIN Codes

HUDEX Gas ISIN codes – 2025

• Previous versions

  HUDEX Gas ISIN codes – 2024

  HUDEX Gas ISIN codes – 2024

  HUDEX Gas ISIN codes – 2023

  HUDEX Gas ISIN codes – 2022

  HUDEX Gas ISIN codes – 2020 Q1-Q2-Q3

  HUDEX Gas ISIN codes – 2020 Q1-Q2

  HUDEX Gas ISIN codes - 2020 Jan-Jul

  HUDEX Gas ISIN codes - valid until 31.05.2020

  HUDEX Gas ISIN codes - valid util 01.01.2020

  HUDEX Gas ISIN codes - valid until 01.10.2019

  HUDEX ISIN codes - 2018 Q1-Q4

Other trading documents

  OTC trade registration form

  Financial Futures Order Submission Form

Physical delivery

All tradable products on the natural gas segment are subject to physical delivery obligation. After the expiration of each contract the reflective nomination is sent by CEEGEX on behalf of HUDEX to the system operator.