(44)With the aim of guaranteeing a level playing field and promoting the transparency of the Union market, Regulation (EU) No 600/2014 should be amended to subject systemic internalisers’ quotes, price improvements and execution prices to the tick size regime when dealing in all sizes. Consequently, the currently applicable regulatory technical standards dealing with the tick size regime should also apply to the extended scope of Regulation (EU) No 600/2014.