All algos. Large amounts of money can be moved with relative ease. The reason you see spikes in FX rates is not because of large players moving money but because large players abstain from the market when these events happen. It's actually the lack of liquidity that is causing those spikes, not the actual size of the trade. So even those spikes you are not actually picking anyone off. It's just a price vacuum.
I have been misunderstood. I was not referring to FX moves on news.
I totally agree with what you just said (regarding spikes on news) and that was exactly my earlier point why slapping OR on news might not be the best idea (even if R:R is good) because the moves are more random at that moment and not reflecting true underlying forces. In other words: so what that R:R is 1:4 if the market is
not acting orderly then the probability of that trade working out is very low. In orderly market you might have a bull bias and look for failed Adown to go long with 1:4 RR, but the very same trade done on news (same RR and all) is more gambling since with less liquid market you risk being run over just on the "noise" alone. Wouldn't you agree?
My comment (question) regarding FX was in direct response to you claiming that at least in other markets, you can't "pick-off" larger players since they quietly build their positions. So essentially you are claiming that larger players (which by definition are longer than day timeframe) are extremely price sensitive, which I disagree with. If you were to go that route further then I'm not sure if you could justify ACD altogether, but I digress.
Let me go back to FX.
Just to make sure again, I'm not talking about trading around the news but FX trading in general. I'm not sure how familiar you are with that market (I'm not implying anything just saying, as I always assume I know nothing), sure there are algos but the big FX transactions are happening (from what I know) on the interbank market through Market Makers (banks), not through algos. That's how MM can quickly offload huge position that unexpectedly land on his lap. He does that by offloading it quickly to many other MMs that in turn get trapped and as they all offload heir positions, the market moves and that's where one can look for the possibility of taking advantage of the move. No algo will effectively offload huge FX trade that get's dumped onto MMs hands that needs to be laid off asap. I've seen documentaries and fx dealer interviews and actually same thing is in one of the Market Wizards books. Sure it is old, but algos or no algos, not that much has changed over the years in that matter. At least I like to think that way...
Hence my original question, if one was to agree with you that (in other markets) you can't pick-off larger players, isn't it different at least with fx market? And I'm not talking about Fx futures market because it is arbed to the IB market. Since the biggest flows (real money) happen through IB market, as these positions get offloaded you see the moves of the big players trapping others and you capitalize on that move by jumping on it. After all, isn't that the whole premise of ACD to begin with? Once you see the market moving and making i.e. Aup or Adown you look to jump on this freight train for a quick ride, as the move might be meaningful.