Electricity Futures

Contract Specifications(Weekly)

East Area
Baseload Electricity (Weekly)
West Area
Baseload Electricity (Weekly)
East Area
Peakload Electricity (Weekly)
West Area
Peakload Electricity (Weekly)
Type of Trade Cash-settled Futures Transaction
Underlying Average Price of JEPX* Spot Market(Day-Ahead) for the Tokyo Area Baseload Price (0:00~24:00) Average Price of JEPX* Spot Market(Day-Ahead) for the Kansai Area Baseload Price (0:00~24:00) Average Price of JEPX* Spot Market(Day-Ahead) for the Tokyo Area Peakload Price (8:00~20:00) Average Price of JEPX* Spot Market(Day-Ahead) for the Kansai Area Peakload Price (8:00~20:00)
Opening Date March 18, 2024
Trading Hours 8:45-15:15, 16:30-19:00
(Note) An order acceptance period ("pre-closing") is established for 5 minutes before the Closing Auction.
Trading Hours
Contract Weeks 5 Consecutive Weeks
Last Trading Day The business day before Friday of each week The business day before Friday of each week (to be moved up if Friday is not a weekday)
Final Settlement Day The business day following the last trading day.
Contract Unit (Contract base size : 100 kWh) No. of calendar days in the relevant period from Saturday to next Friday x 24 hours x 100 kWh
Contract unit (Electricity Futures)
No. of weekdays in the relevant period from Saturday to next Friday x 12 hours x 100 kWh
Contract unit (Electricity Futures)
Price Increment \0.01 per kWh
Price Limits
  1. The price limit range:\8.00
    (Note) No expansion
    Price Limits, Circuit Breaker Rule
    (Note) TOCOM may review price limit temporarily considering market conditions and other factors.
  2. Immediately Executable Price Range Rule (DCB):LTP±\5.00
    (Note) The DCB Price Range for Opening Auction and Closing Auction will be ±\6.00 respectively.
  3. Immediately Executable Price Range Rule
Circuit Breaker Rule (SCB) No trading Halt
Strategy Trades N/A
Off-floor Transactions Available (Tick size: \0.01, Minimum trading unit: 1 unit)
Off-floor Transactions Detailed Rules
Holiday Trading Available
Holiday Trading
Daily Settlement Price The price determined by Japan Securities Clearing Corporation (JSCC) based on the Final Execution Price, etc.
Final Settlement Price JEPX Spot Market (Day Ahead) Tokyo Area Baseload average price of the week (from Saturday to next Friday) JEPX Spot Market (Day Ahead) Kansai Area Baseload average price of the week (from Saturday to next Friday) JEPX Spot Market (Day Ahead) Tokyo Area Peakload (8:00~20:00 of weekdays) average price of the week (from Saturday to next Friday) JEPX Spot Market (Day Ahead) Kansai Area Peakload (8:00~20:00 of weekdays) average price of the week (from Saturday to next Friday)
Customer Position Limits Differences between short & long position (Net amount)
Trading Participants
10,000 contracts/each contract week
(equivalent to 168,000MWh)
Customers
5,000 contracts/each contract week
(equivalent to 84,000MWh)
Differences between short & long position (Net amount)
Trading Participants
14,000 contracts/each contract week
(equivalent to 84,000MWh,in case of 5 days of the week)
Customers
7,000 contracts/each contract week
(equivalent to 42,000MWh,in case of 5 days of the week)
Margin Calculated by VaR Method
Margin Calculated Method(VaR Method)for Futures and Options(JSCC)
Settlement
  1. Resale or repurchase
  2. Final settlement (Cash Settlement based on Final Settlement Price)
Give-Up Available
Give-Up System
Position-Transfer Available
Position Transfer System
Position Reporting Applicable contract months: All contract months
Parties required to report: Trading Participants and Eligible Intermediaries, when short or long positions entrusted by a single client exceed the reporting criteria below
Information to be reported: Short positions and long positions for all contract months for the relevant issues
(Even if only one of the short or long position for one contract month exceeds the reporting criteria, it is necessary to report the quantities of both short and long positions in all contract months.)
Entrusted by other Trading Participants or Eligible Intermediaries Entrusted by customers other than these
Reporting criteria 1 contract 1 contract
Measurement date: Every business day (at the end of the day session)

  • JEPX : Japan Electric Power Exchange. JEPX is Japan's only exchange facilitating wholesale electricity trades.
(note)
  • ・The relevant period of each weekly contract is a week starting from Saturday to next Friday.
  • ・The first weekly contract of the year shall be the contract which the last trading day is a business day before the first Friday of the year and shall be counted as a weekly contract number "1".
  • ・The number will increase for each weekly contract within a year. For the week with no weekdays, no peakload contract will be created (missing number).
    Please see contrac unit page for the details of each weekly contract.
  • ・Eligible Intermediaries are brokers, foreign securities services providers, or foreign commodity futures brokers who are subject to the application of special measures concerning limits on the quantity of positions.