Billionaire Profile
Michael Spencer
Global Rank
#2681

Image: © House of Lords / photography by Roger Harris | CC BY 3.0 | via Wikimedia Commons

Michael Spencer

CEO, Stock exchange
UNITED KINGDOM
Real-Time Net Worth
$1.353B
Estimated based on Stock exchange stock value as of March 6, 2026
0% (24h)
Age
70
Source
Stock exchange
Industry
Finance & Investments
Citizenship
UNITED KINGDOM

Biography

Michael Alan Spencer, Baron Spencer of Alresford (born May 30, 1955), is a British businessman, investor, and philanthropist. Best known as the founder of ICAP, later rebranded as NEX Group, Spencer revolutionized global finance. His career, starting in 1976, saw him establish ICAP, which became the world's largest interdealer broker. With an estimated net worth of $1.4 billion, Spencer's achievements include the Ernst & Young World Entrepreneur of the Year award. He is a life peer in the House of Lords. His wealth originates from the stock exchange and his strategic vision has established him as one of Britain's wealthiest self-made entrepreneurs. His contributions extend beyond finance, with significant philanthropic endeavors.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Michael Alan Spencer was born in Kuala Lumpur, British Malaya (now Malaysia), on May 30, 1955. His father was an economist and civil servant, and his mother was a linguist. Due to his father's work, Spencer spent his childhood in various countries, including Sudan and Ethiopia. At age eight, he was sent to England to study at Worth School in Sussex. He later studied Physics at Corpus Christi College, Oxford.

Rise to Success

Spencer's career began in 1976 with a London brokerage firm, Simon & Coates. He later worked at Drexel Burnham Lambert. In 1986, he co-founded Intercapital Brokers, which later became ICAP plc. ICAP grew to become the world's largest interdealer broker. In 2016, Spencer orchestrated the sale of ICAP's voice broking business to Tullett Prebon and rebranded the remaining operations as NEX Group. CME Group acquired NEX Group in 2018.

Key Business Strategies

Spencer's key business strategies included recognizing the potential of electronic trading platforms and implementing them early, which gave ICAP a competitive edge. He also focused on strategic mergers and acquisitions to expand ICAP's services and market reach.

Philanthropy

Michael Spencer is a dedicated philanthropist. He established the ICAP Charity Day, which has raised over £170 million for charities worldwide.

Career Milestones

1976

Began Career

Started as an investment analyst at Simon & Coates.

1980

Joined Drexel Burnham Lambert

Spent three years broking financial futures.

1986

Founded Intercapital Brokers

Founded Intercapital Brokers, which later became ICAP plc.

2006

ICAP's FTSE 100 Entry

ICAP joined the FTSE 100 index.

2018

NEX Group Acquisition

CME Group acquired NEX Group.

2020

Life Peerage

Became Baron Spencer of Alresford.

Philanthropy & Social Impact

Charity

ICAP Charity Day

$XB

Annual event raising funds for various charities