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ICE Futures Europe

Three Month SONIA Index Futures



Three Month SONIA Index Futures Contract *is a cash settled future based on the interest rate on a three month sterling deposit.

Market Specifications

Trading Screen Product Name
Three Month SONIA
Trading Screen Hub Name
Contract Symbol
Unit of Trading
£2,500 * Rate Index
Minimum Price Fluctuation
Front delivery month from the first business day in the calendar month preceding the Last Trade Day: 0.0025 (£6.25)
Front delivery month prior to the aforementioned period and all other delivery months: 0.005 (£12.50)
Delivery Month
March, June, September, December, such that 25 delivery months are available for trading.
Contract Delivery Months are named by the start date of the accrual period.
100.00 minus the numerical value of rate of interest
Last Trading Day
One business day prior to the third Wednesday of the next quarterly Delivery Month trading will cease at 18:00 (London Local Time)
Central order book applies a gradual time based pro-rata (GTBPR) matching algorithm with a time-weighting of 2 and with priority given to the first order at the best price subject to a minimum order size (collar) and limited to a maximum order size (cap).
Wholesale Trade Types
Block Trading, Basis Trading, Asset Allocation
Minimum Volume Thresholds can be found here
Exchange Delivery Settlement Price
EDSP Publication is the next business day after the Last Trading Day

100 minus the EDSP Rate, determined as described below.

Based on SONIA (Sterling Over Night Index Average) as calculated by the Benchmark Administrator each business day, the EDSP Rate represents the effective rate of interest achieved by reinvesting at SONIA for each day of the accrual period of the contract. The following formula shall be applied:

Click here for formula


S_i = SONIA rate on the i^th day of the accrual period

d_i= the number of days that the value S_i is applied

x = the number of SONIA fixings used in the accrual period

N = the total number of days for which the x fixings are applied, i.e. the number of calendar days in the accrual period

Where the EDSP Rate is not an exact multiple of 0.0001, it will be rounded to the nearest 0.0001 or, where the EDSP Rate is greater than or equal to 0.00005, it will be rounded up to the nearest 0.0001.

Interest Rate Basis
Act/365 Fixed
First Accrual Date
Third Wednesday of the Delivery Month
Last Accrual Date
Business day prior to the Third Wednesday of the next quarterly Delivery Month
Wholesale Service
Basis trading, Block Trading, Asset Allocation
ICE Clear Europe
Contract Standard
Cash settlement based on the Exchange Delivery Settlement Price.
Statement in relation to EDSP Formation
The contracts have a standardised basis point value so that, for hedging purposes, a calculation will need to be made in relation to the hedge ratio to take into account any mismatch between the standardized basis point value and the actual basis point value of the position being hedged, determined by the actual number of days in the accrual period.
The “SONIA” mark is used under license from the Bank of England (the benchmark administrator of SONIA), and the use of such mark does not imply or express any approval or endorsement by the Bank of England. “Bank of England” and “SONIA” are registered trademarks of the Bank of England.
MIC Code
Clearing Venues

Trading Hours

New York2:30 AM - 1:00 PM
02:30 - 13:00
1:03 AM
London7:30 AM - 6:00 PM
07:30 - 18:00
6:03 AM
Singapore2:30 PM - 1:00 AM
14:30 - 01:00
1:03 PM


Clearing Admin Name
Sonia 3Month
Symbol Code