2015 is a special year: it is the 20 years of ABC Arbitrage. How to deal with 20 years without falling into the pitfall of a nostalgic retrospective? How to digitize while remaining surprisingly constant feature -the ABC arbitrage-? The annual report offers a unique and surprising handling of the tablet, showing a principle of dual read. ABC Arbitrage reveals the hidden side of its operations and through trades a principle of double reading. An annual report to shake up preconceived ideas!