I haven't been around most of the day so I haven't seen what was...

I haven't been around most of the day so I haven't seen what was going on. I had an order in for TAS at a low price that I didn't expect to be filled and checking now I find it was filled. Because I usually have some buys and sells in the line I often find that when these are filled it is often through Chi-x. I usually don't cause any sell offs as I have target prices and they are either met or not met. Sometimes I get caught out but usually get a "get out of jail free card" as I play on.
Today I got caught on another spec stock. I had a sell in at the head of the queue with 100,000 units for sale two pips ahead of the buys. Somehow I have found myself selling 1 share. I suggest that the buyer then expected me to sell the balance at their price, they will be disappointed because I'll hold my price, for months it necessary. This is one where I am doing relative value trading between heads and options. Not as good as EDE and TAS trades.

I note your other request. I also note that it was answered. A check of my TAS posts over time will disclose plenty of times I have given the details. All that changes over time is my ratio of one to the other but on average I trade with 1.2 TAS to 1 EDE as the mean and trade (swap one for the other) when it gets out of whack. I never sell unless I have bought or can buy right after a sale. Had I been able to get involved today I guess I would have done a few trades. The thing to watch is that TAS has a delayed reaction to a change in EDE but it usually adjusts. Since I have promoted the trading I find the reaction time much reduced.

PS. I don't deliberately trade Chi-x my broker fills my orders wherever my price can be met.