This should be an interesting thread if people starts to share. As long as the edge is gone, I think it shouldn't be a problem.
- Around 2008, on Cotton NYBOT, sometimes you had an algo buying/selling around ask/bid and another algo selling /buying at midpoint. So for example, you just waited with a buy order at bid, got filled , then placed a sell order at midpoint and got filled instantly. This was lasting until one of the algo had filled enough size. It was sometimes lasting 30 seconds which is enough to make like 20 RTs.
- Last year or so, on Orange Juice which is really illiquid and where 10 lots can be considered "size", there was someone coming in displaying sizes like 400. Nazzdack was calling him Travis Tropicana in one thread. At first you thought it was ( dangerous )spoofing but no. He wanted to fill it, so he waited 5 minutes at bid, got filled 10 lots, updated his bid 10 ticks higher, got filled 10 lots, updated 20 ticks higher, got filled...He was moving the markets at least 50 ticks every times. You just had to buy in front of him and wait until his whole size was consumed 50 ticks higher to exit.
- In 2009, on CL in the overnight session, there was an algo that was "chasing" sizes of 100 lots and more, hitting it and even overfilling 2-3 ticks higher/lower when all the size was consumed. When you saw this kind of size around, you just had to buy 2-3 ticks lower than the size and place an exit limit order 2-3 ticks higher.
Trading is not always complicated...LOL. Those edges were working.
