Hint mode is switched on Switch off
Cbonds API
Power Your Analysis with Index & Yield Curve Data

Get Index Data via API

  • Up to 20 years of history
  • Index constituents
  • Macroeconomic indicators
  • Fixed-income and equity indices

OIS GBP SONIA 4M mid

FIND, SAVE & TRACK INVESTMENTS WITH CBONDS WATCHLIST

With Cbonds Watchlist you can always stay updated on your investments to make conscious decisions!

Watchlist
You need to request access
daily
%
UTC+3
Previous value
on 16/09/2026
from
to
ADD-IN
Cbonds add-in API
bond data api
Data for this index is not available for download
Authorization required
You need to request access

Try in 7-days Trial access

  • Get full online access to the database
  • Use our powerful bond screener
  • Track bond prices from 400+ sources
  • Smart Portfolio Monitoring
Unlock Data

Index description

Interest Rate Swap GBP (fixed interest rate vs SONIA). An interest rate swap is an agreement to exchange a stream of cash flows by applying a fixed and floating interest rate to a specified notional over a term to maturity.

Excel + Cbonds

Index value can be retrieved via Cbonds add-in for Excel using the formula CbondsIndexValue(76331, date)

Cbonds add-in

Quotes by Market Participants

List of securities for index calculation

Export to Excel

Subgroup indices

Index Current value Date
OIS GBP SONIA SW mid 3.734 % 17/09/2026
OIS GBP SONIA 2W mid 3.733 % 17/09/2026
OIS GBP SONIA 1M mid 3.741 % 17/09/2026
OIS GBP SONIA 2M mid 3.7864 % 17/09/2026
OIS GBP SONIA 3M mid 3.84845 % 17/09/2026
OIS GBP SONIA 4M mid 3.9291 % 17/09/2026
OIS GBP SONIA 5M mid 3.9944 % 17/09/2026
OIS GBP SONIA 6M mid 4.05565 % 17/09/2026
OIS GBP SONIA 7M mid 4.1328 % 17/09/2026
OIS GBP SONIA 8M mid 4.1929 % 17/09/2026
OIS GBP SONIA 9M mid 4.25165 % 17/09/2026
OIS GBP SONIA 10M mid 4.3096 % 17/09/2026
OIS GBP SONIA 11M mid 4.3563 % 17/09/2026
OIS GBP SONIA 1Y mid 4.4014 % 17/09/2026
OIS GBP SONIA 18M mid 4.5144 % 17/09/2026
OIS GBP SONIA 2Y mid 4.5779 % 17/09/2026
OIS GBP SONIA 3Y mid 4.605 % 17/09/2026
OIS GBP SONIA 4Y mid 4.6141 % 17/09/2026
OIS GBP SONIA 5Y mid 4.6263 % 17/09/2026
OIS GBP SONIA 6Y mid 4.646 % 17/09/2026
OIS GBP SONIA 7Y mid 4.6715 % 17/09/2026
OIS GBP SONIA 8Y mid 4.705 % 17/09/2026
OIS GBP SONIA 9Y mid 4.7413 % 17/09/2026
OIS GBP SONIA 10Y mid 4.7788 % 17/09/2026
OIS GBP SONIA 11Y mid 4.8158 % 17/09/2026
OIS GBP SONIA 12Y mid 4.851 % 17/09/2026
OIS GBP SONIA 15Y mid 4.9458 % 17/09/2026
OIS GBP SONIA 20Y mid 5.04 % 17/09/2026
OIS GBP SONIA 25Y mid 5.0691 % 17/09/2026
OIS GBP SONIA 30Y mid 5.0544 % 17/09/2026
OIS GBP SONIA 40Y mid 4.9697 % 17/09/2026
OIS GBP SONIA 50Y mid 4.8633 % 17/09/2026
OIS GBP SONIA 60Y mid 4.76205 % 17/09/2026
Show more Hide

The composition of the index list

The data is available via upload
Export to Excel
Welcome to Cbonds
New to Cbonds? · Take a 90-second tour of the platform.

Discover what you can do with Cbonds

Everything you need for fixed income research and monitoring.

  • 00:23 Coverage
  • 00:40 Bond screener
  • 00:54 Parameters
  • 01:10 Watchlist, Mobile app
  • 01:15 Excel Add-in
Get access Watch full tour

Get access to the largest financial database

Try in 7-days Demo access

Free for company representative

  • Evaluate advanced analytical tools
  • Get full online access to the database
  • Try our powerful bond screener
  • Track bond prices from 400+ sources

Get access to the largest financial database

Representative of the company 7 days FREE trial

Professional access to the data

Private investor

Individual access
Registration is required to get access.