Sam joined Citi in 2014 from Goldman Sachs spin out Redi.
He previously worked at Goldman
Sachs as head of European electronic
In his current role, he is responsible for driving efficiency, consistency and optimisation across the
company’s cash execution channels,
inclusive of programs, electronic, and
He joined the bank as head of
liquidity strategy having previously ran
the European operations of Redi.
At Citi, Baig originally reported to
Steve Garrard, head of equity sales
trading for Europe, the Middle East and
Africa until he left the bank in the mid-
dle of 2015.
Redi was launched at the beginning of the 1990s by Spear, Leeds
& Kellogg which was subsequently
acquired by Goldman at the turn of the
Baig was initially hired by Citigroup
to examine the residing liquidity on its
trading floor. Baig looked at the group’s
large inventory of stocks, aiming to
combine the available liquidity with any
crossing opportunities. The investment
bank also brought Baig on board to
rethink the group’s approach to execution, in terms of deciding which venues
were the best choice for execution. n
Head of execution platform (EMEA)
Mark Hemsley has had a var- ied career taking in stints in
global technology as well as market
Prior to joining Bats, Hemsley
served as managing director and chief
information officer at Liffe.
His involvement in the global technology sector has seen a spell as CIO of
Deutsche Bank GCI as well as a similar
stint as VP of Credit Suisse First Boston.
His time at Bats has seen him
become the firm’s first employee to
take it into Europe as well as negotiate
the deal to amalgamate Bats with Chi-X
in November 2011.
In the first five months of the new
partnership, he and his team launched
the first interoperable clearing service
offered by a trading venue.
With such a varied and extensive
CV one might think that there may be
a reduction of ambition going forward
but this couldn’t be further from the
The periodic auction book has
emerged in response to an industry pattern over recent years that have seen
the spotlight turned on lit and dark
trading books alike.
Hemsley said “Our auction book is
designed to run mini-auctions during
the day. This innovative approach has
already received a lot of publicity.” n
Chief executive officer