How do Big Banks - that provide liquidity to Institutional ECN's like Currenex or Hotspot - define "scalping"? The question is not posed toward retail bucketshops as their interpretation is obvious and self-serving. How many pips profit? Stop? Average hold time? Primarily news-trades? What is key criteria? And secondly, why would Big Banks care if a trader scalped or not? A true ECN shouldn't avail major Banks to anymore risk then they willingly take on themselves (by quoting a bid or ask)? Help a brother out.