Quote from Cheese:
[BMost trades appear to be small but with a regular occurrence of larger sizes .. it seems that 50-100+ sizes often get split with half of the size at a point higher price.[/b]
Pretty much echoes what I said earlier about sweeping for a fill on 100...
So it does seem there is often sufficient liquidity. Why is that on trading BB's the alleged poor liquidity of the mini-Dow gets slated against, say, the liquidity and depth of the S&P 500 mini?
If you take ES depth on the 5 levels (usually about 2500-4000 cumulative offered or bidfor - can be a lot more though) and divide that by 12 or 13 to get from the .25 tick size to equivalent .1 size, you would end up with something of the order of 250-350 offered/bidfor routinely as the size at each level of the depth on the 0.1 (equivalent of 1 point for YM).
YM doesn't come anything close to this level, so people look at it by comparison as illiquid. Clearly it is not as liquid, but then I suspect there are many fewer players involved too.
ES is a very crowded instrument indeed (with the migration of many former stock traders), which can at times be a good thing, and at other times a bad thing. Sometimes ES is actually held back by the sheer volume of contracts going through, where YM can be more volatile. That too can be either good or bad depending on your viewpoint and what you are seeking with your methods.
best
Natalie