Anything that has had an impact on one asset class or market will rapidly cross over to others if it has perceived benefits. Perhaps the most obvious example is electronic trading itself, which has changed the way trading is done in market after market; other innovations to cross over into foreign exchange more recently include programme and algorithmic trading. The last two have had a profound impact on the US equity market in particular and are often cited as the main reason why the average ticket size declined substantially.
With computerized trading on the increase in FX, it is noticeable that ticket sizes are also falling. As a result, it was perhaps inevitable that a solution to the problem of trading large amounts, or blocks, would arrive from another market, and again it is the US equity market that might offer an answer.
The average trade size in US equities...
