Capital Securities (AT1/RT1)

Convertible AT1 / RT1 capital securities are issued by banks or insurers to provide subordinated, equity-like capital, which automatically convert into common equity of the issuer upon certain capital-based trigger events.

Unlike traditional convertible bonds, the conversion is not at the option of the investor, but similar to traditional convertible bonds there will be (a) adjustments to the conversion price for dilutive events, such as rights issues, special dividends, and stock splits and (b) settlement calculations required to be made at the time of conversion (a low likelihood event, but one in which the issuer may need to deal with a significant number of other workstreams simultaneously).

Following the initial fixed period, the interest rate on convertible AT1 / RT1 capital securities is normally subject to rolling resets operating by reference to a government bond rate or swap rate.

Capital Securities (AT1/RT1)

Recent Transactions

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November 2025
UK
Standard Chartered – AT1 Nov 2025

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

September 2025
Spain
CaixaBank – AT1 2025 II

Additional Tier 1 Securities

€500 Million

Conversion Calculation Agent

September 2025
Netherlands
ING – AT1 2025

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

June 2025
France
BNP Paribas – AT1 June 2025

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

March 2025
UK
Aviva – RT1 2025

Restricted Tier 1 Notes

£500 Million

Conversion Calculation Agent

March 2025
France
Credit Agricole Assurances – RT1 2025

Restricted Tier 1 Notes

€750 Million

Conversion Calculation Agent

January 2025
Spain
CaixaBank – AT1 2025

Additional Tier 1 Securities

€1 Billion

Conversion Calculation Agent

January 2025
UK
Standard Chartered – AT1 2025

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

September 2024
UK
Standard Chartered – AT1 September 2024

Additional Tier 1 Securities

S$750 Million

Conversion Calculation Agent

September 2024
Netherlands
ING – AT1 September 2024

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

September 2024
France
BNP Paribas AT1 – September 2024

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

April 2024
UK
Marex – AT1 IA role 2024

Additional Tier 1 Securities

US$100 Million

Independent Advisor

February 2024
UK
Standard Chartered – AT1 2024

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

February 2024
France
BNP Paribas – AT1 2024

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

February 2024
Netherlands
ING – AT1 2024

Additional Tier 1 Securities

US$1.25 Billion

Conversion Calculation Agent

January 2024
Spain
CaixaBank – AT1 2024

Additional Tier 1 Securities

€750 Million

Conversion Calculation Agent

November 2023
UK
Close Brothers – AT1 2023

Additional Tier 1 Securities

£200 Million

Conversion Calculation Agent

August 2023
France
BNP Paribas – AT1 2023

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

2023
Switzerland
Swiss Bank – Libor Transition IA 2023-8

Additional Tier 1 Securities

S$

Independent Advisor – LIBOR Transition

2023
Switzerland
Swiss Bank – Libor Transition IA 2023-7

Additional Tier 1 Securities

S$

Independent Advisor – LIBOR Transition

2023
Switzerland
Swiss Bank – Libor Transition IA 2023-5

Additional Tier 1 Securities

US$

Independent Advisor – LIBOR Transition

2023
Switzerland
Swiss Bank – Libor Transition IA 2023-4

Additional Tier 1 Securities

US$

Independent Advisor – LIBOR Transition

2023
Switzerland
Swiss Bank – Libor Transition IA 2023-3

Additional Tier 1 Securities

US$

Independent Advisor – LIBOR Transition

March 2023
Spain
Caixa Bank – AT1 2023

Additional Tier 1 Securities

€750 Million

Conversion Calculation Agent

February 2023
Netherlands
ING – AT1 2023

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

August 2022
UK
Standard Chartered – AT1 2022

Additional Tier 1 Securities

US$1.25 Billion

Conversion Calculation Agent

June 2022
UK
Aviva – RT1 2022

Restricted Tier 1 Notes

£500 Million

Conversion Calculation Agent

December 2021
UK
abrdn – AT1 2021

Additional Tier 1 Securities

£210 Million

Conversion Calculation Agent

September 2021
UK
OSB Group – AT1 2021

Additional Tier 1 Securities

£150 Million

Conversion Calculation Agent

September 2021
UK
Just Group – RT1 2021

Restricted Tier 1 Notes

£325 Million

Conversion Calculation Agent

September 2021
Netherlands
ING – AT1 2021

Additional Tier 1 Securities

US$2 Billion

Conversion Calculation Agent

September 2021
Spain
Caixa Bank – AT1 2021

Additional Tier 1 Securities

€750 Million

Calculation Agent

August 2021
UK
Standard Chartered – AT1 2021

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

March 2021
Spain
Caixa-Bankia AT1s – IFA role

Additional Tier 1 Securities

€1.25 Billion

Independent Financial Advisor

January 2021
UK
Standard Chartered – US$ AT1 2021

Additional Tier 1 Securities

US$1.25 Billion

Conversion Calculation Agent

October 2020
Spain
CaixaBank – AT1 2020

Additional Tier 1 Securities

€750 Million

Conversion Calculation Agent

June 2020
UK
Standard Chartered US$ AT1 – 2020

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

June 2020
UK
Legal & General RT1 – 2020

Restricted Tier 1 Notes

£500 Million

Conversion Calculation Agent

February 2020
Netherlands
ING 2020 AT1

Additional Tier 1 Securities

US$750 Million

Conversion Calculation Agent

September 2019
Netherlands
ING 2019 AT1 – 2

Additional Tier 1 Securities

US$1.5 Billion

Conversion Calculation Agent

July 2019
UK
Pension Insurance Corporation – RT1 2019

Restricted Tier 1 Notes

£450 Million

Conversion Calculation Agent

July 2019
Italy
BPER – AT1 2019

Additional Tier 1 Securities

€150 Million

Calculation Agent

July 2019
UK
Standard Chartered – SG$ AT1 2019

Additional Tier 1 Securities

S$750 Million

Conversion Calculation Agent

March 2019
UK
Just Group RT1 – 2019

Restricted Tier 1 Notes

£300 Million

Conversion Calculation Agent

March 2019
Netherlands
Aegon RT1 – 2019

Restricted Tier 1 Notes

€500 Million

Conversion Calculation Agent

February 2019
Netherlands
ING AT1 2019

Additional Tier 1 Securities

€1.25 Billion

Conversion Calculation Agent

March 2018
Spain
Caixa Bank AT1 – 2018

Additional Tier 1 Securities

€1.25 Billion

Conversion Calculation Agent

November 2017
UK
Direct Line Group 2017

Restricted Tier 1 Notes

£350 Million

Conversion Calculation Agent

October 2017
Netherlands
ASR RT1 2017

Restricted Tier 1 Notes

€300 Million

Conversion Calculation Agent

June 2017
Spain
CaixaBank AT1

Additional Tier 1 Securities

€1 Billion

Conversion Calculation Agent

March 2017
UK
RSA RT1 – DKK

Restricted Tier 1 Notes

DKK650 Million

Conversion Calculation Agent

March 2017
UK
RSA RT1 – SEK

Restricted Tier 1 Notes

SEK2.5 Billion

Conversion Calculation Agent

January 2017
UK
Standard Chartered AT1 2017

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

November 2016
Netherlands
ING AT1 2016

Additional Tier 1 Securities

US$1 Billion

Conversion Calculation Agent

August 2016
UK
Standard Chartered AT1 2016

Additional Tier 1 Securities

US$2 Billion

Conversion Calculation Agent

December 2015
UK
Standard Chartered

Additional Tier 1 Securities

US$2 Billion

Calculations Advisor

April 2015
Netherlands
ING T1

Additional Tier 1 Securities

US$2.25 Billion

Conversion Calculation Agent

February 2013
Cyprus Greece
Intralot

Additional Tier 1 Securities

Size Undisclosed

Independent Valuer

CALCULATION AGENCY FOR CAPITAL SECURITIES

A Calculation Agent is appointed by the issuer to perform the calculations required pursuant to the terms and conditions of the transaction, typically in relation to the conversion feature only (a “Conversion Calculation Agent”). Where the paying/conversion agent is unable to take on the interest rate reset determinations, we can take on those determinations as well (acting as “Conversion/Interest Calculation Agent” or “Calculation Agent”).

  • If appointed pre-issuance (which is the way we are asked by issuers to operate most of the time), ConvEx can also test the relevant provisions setting out those calculations to ensure these will operate as intended and provide support in drafting of the transaction documentation – and will be named in such documentation as the party formally responsible for performing such calculations (which shall be binding on all concerned parties).
  • If appointed post-issuance, ConvEx can still support the issuer without being named in the transaction documentation) in dealing with calculations under their transaction, operating (and providing guidance on) the documentation as drafted.
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When appointed as Conversion Calculation Agent pre-issuance, ConvEx does the following:

BEFORE ISSUANCE

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DURING THE LIFE

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IN THE EVENT OF CONVERSION

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When appointed as Conversion Calculation Agent post-issuance, ConvEx does the following:

WHEN WE ARE APPOINTED

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DURING THE LIFE

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IN THE EVENT OF CONVERSION

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INDEPENDENT EXPERT OPINIONS FOR CAPITAL SECURITIES

Most AT1/RT1 instruments include reference to an independent expert third party to be appointed in future to make certain determinations. This might be referred to as an “Independent Adviser”, “Independent Expert”, “Independent Financial Adviser”, “Independent Investment Bank”, or several other names.

The need for an independent expert typically arises in the event of a calculation or other determination which is not set out formulaically in the terms and conditions of the instrument, or in the event of multiple events triggering an adjustment to the conversion/exchange price occurring simultaneously, or more generally in the event of uncertainty (or dispute) as to how a calculation should be performed.

Our extensive experience and knowledge of capital securities and equity-linked securities documentation allows us to consider the formulaic provisions, but also to put them into a market context (including any applicable precedents) to assist in clarifying the original intent to arrive at a fair solution. We provide written opinions for the issuer’s reliance.

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