The short answer is "I do not know".
The long answer!
Should I care? Probably but I am not a daytrader and even with low brokerage fees I do not see myself being able to squeeze the pennies out of each possible transaction to justify any added stress. I have often contemplated "playing" with 10% of my KRY holding in the daytrading scenario. However, I keep telling myself that one of these days the "go-ahead" is going to happen and my attempt at gaining a few percent rather than significant percent is just no worth the effort. The reality today of course is that I would have been better trying to squeeze out the pennies. At least my psyche would be in a better state.
Next, I will presume since others seem to suggest it, that there is a marketmaker (MM). It is the definition of a marketmaker to make a market so it would be difficult to accuse this person of manipulation. Hopefully the exchanges monitor their activities but who knows for sure.
Next, does someone know something I do not about KRY? I would be surprised not to find others much more knowledgeable about KRY but again I suspect this knowledge is more useful in the medium to long term rather than the daytrading aspect. About the only intelligent comment I could make here is that this knowledge would be visible with large volumes, up or down.
I appreciate the similar frustration of others regarding KRY. If there is manipulation then the issuing of the permit "go-ahead" will counter out any current manipulation. Oh wait a minute, when the "go-ahead" is issued we may see some real manipulation as various parties attempt to out-manoeuvre each other for KRY control.
I guess I will finish by asking how, where or why do you perceive manipulation?