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The 2015 Trading Technology 40: John Mackay (Mack) Gill
#24 John Mackay (Mack) Gill, Chief Executive Officer, MillenniumIT
MillenniumIT, an exchange systems company formed in Sri Lanka in 1996 and acquired by London Stock Exchange Group in 2009, built its reputation on what was touted as the world’s fastest trading platform. John Mackay (Mack) Gill, the former SunGard Data Systems executive who was named MillenniumIT’s chief executive in May 2013, concedes that “speed is not much of a differentiator these days. What’s important now is resilience and uptime.” Still, high frequency trading loomed large in the formation of Aequitas Innovations and in that organization’s choice last year of MillenniumIT’s technology for the soon-to-launch Aequitas NEO Exchange in Canada. Backed by Barclays, ITG Canada Corp., RBC Capital Markets and other financial institutions, Aequitas seeks to be an HFT corrective in terms of transparency and fairness for issuers and long-term investors. “We’ve worked for clients in different parts of the trading cycle, but doing it from scratch with a new exchange is cool,” Gill says. It is “not a simplistic anti-HFT thing”; Aequitas’s focus on optimizing “latency impact” to ensure a level playing field made MillenniumIT a natural partner, the 45-year-old adds. He points to Aequitas as proof of MillenniumIT’s ability to go global, building on its longtime strength in Asia and Europe. It also underscores the company’s full range of trading and clearing capabilities. “The posttrade environment is going to look and feel more like a trading environment,” predicts Gill, who oversaw the deal to replace Singapore Exchange’s posttrade infrastructure in late 2013. “Having a reputation for efficient real-time execution in trading will help us as we expand our posttrade offering,” Gill says.
1  | 2  | 3  | 4  | 5  |
| Kevin Kometer CME Group | Richard Prager BlackRock | Raymond Tierney III Bloomberg Tradebook | Jonathan Ross KCG Holdings | Charles Vice Intercontinental Exchange |
6  | 7  | 8  | 9  | 10  |
| Chris Isaacson BATS Global Markets | Bradley Peterson Nasdaq OMX Group | Brad Levy MarkitSERV | Dan Keegan Citi | Ronald DePoalo Fidelity Institutional |
11  | 12  | 13  | 14  | 15  |
| Gerard Beatty Goldman Sachs Group | Gerald O'Connell CBOE Holdings | Brenda Hoffman TMX Group | Billy Hult Tradeweb Markets | Nicholas Themelis MarketAxess Holdings |
16  | 17  | 18  | 19  | 20  |
| Bina Kalola Bank of America Merrill Lynch | Gil Mandelzis EBS-BrokerTec (ICAP) | Steven Randich Financial Industry Regulatory Authority | Jerry Dobner GFI Group | Michael Liberman BlueMountain Capital Management |
21  | 22  | 23  | 24  | 25  |
| Bill Chow and Richard Leung Hong Kong Exchanges and Clearing | Jamie Selway Investment Technology Group | Brad Katsuyama IEX Group | John Mackay (Mack) Gill MillenniumIT | Jamil Nazarali Citadel Execution Services |
26  | 27  | 28  | 29  | 30  |
| Robert Cornish International Securities Exchange | Tyler Moeller andJoshua Walksy Broadway Technology | Rishi Nangalia REDI Holdings | Manoj Narang Tradeworx, Thesys Technologies | Oki Matsumoto Monex Group |
31  | 32  | 33  | 34  | 35  |
| Alasdair Haynes Aquis Exchange | Veronica Augustsson Cinnober Financial Technology | Stu Taylor Algomi | Luís Otávio Saliba Furtado BM&FBovespa | Tal Cohen Chi-X Global Holdings |
36  | 37  | 38  | 39  | 40  |
| Donal Byrne Corvil | R. Cromwell Coulson OTC Markets Group | Alfred Eskandar Portware | Richard Korhammer SR Labs | Hazem Dawani OptionsCity Software |