I have witnessed and have been a victim IMO of a market manipulation:
Bid=1.00 Ask=1.40
I wanted an immediate fill of a short-selling and have submitted a limit order @ 1.00.
In TWS a warning came saying something about "customer protection and pricecap at 1.25",
I waited about a minute, nothing happened, then I increased my limit to 1.40, and wanted then try 1.00 again, but...
...suddenly the Bid changed to 0.75...
Ie. a lost opportunity!...
Maybe a now lucky someone frontran my order...
The said warning had this link for further info:
http://ibkr.com/pricecap
--> https://www.interactivebrokers.com/en/index.php?f=14186
View attachment 165850
you should move to THink or Shit. They would have filed you at 40 cents instantly and then resold it at $1 lol . At least they are honest enough to have a price cap
In Windows one would use
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