Complex sentence: By utilizing its Laser trading platform, Genesis Securities is capable of executing 1.5 billion shares.In other words, around 2-4% of NASDAQ's 1-1.5% of NYSE/AMEX's daily trading volume.
Split into simpler sentences: By utilizing its Laser trading platform, Genesis Securities is capable of executing 1.5 billion shares. This is estimated to be around 2-4% of NASDAQ's daily volume and 1-1.5% of NYSE/AMEX's daily trading volume.