I think there are a few things that stand out to me.
Market share isn't enough. Obviously Olympus is selling some cameras, both in Japan and worldwide. It doesn't really tell you much about them. The important thing is to actually turn a profit on the cameras you sell and my guess is that Olympus and Nikon both are not doing that (yet).
Market share is driven by low end (priced) cameras. Since in this sort of a ranking a 500 dollar camera counts the same as a 5000 dollar camera, those brands that have a robust entry level camera game will look better. I don't know that those cameras help the bottom line a whole lot, except as a gateway for photographers who will eventually purchase higher end camera gear.
Releasing an MILC is not a panacea. Nikon put a lot of money into new cameras and lenses for their Z mount cameras and it just hasn't caught on in the way I am sure they had hoped. It doesn't mean they are bad cameras or that later this year they will catch on more as the economy recovers, but it is a really crowded market place and standing out versus all of the other players is amazingly hard.
From Pentax's standpoint I think the only thing we can say is that they need some new releases. Probably at this point every camera needs a sequel. Obviously the K-3 III is coming very soon, but the 645z, K-70, and K-1 II all could benefit from a follow up. We know that new camera sales are driven by new gear and Pentax just hasn't had much of that. If they want more units sold, the K-70 is the camera to replace -- just put everything in it they can for a 600 dollar price tag and get it out the door.
Anyway, those are my thought (I'm not a particularly business-savvy person so take them for what they are worth).
---------- Post added 03-13-21 at 05:57 AM ----------
Originally posted by btnapa Let's hope not because they make the sensors that go into Pentax, Nikon and other cameras.
They could leave the camera business and make good profits just selling sensors.
I think Canon and Sony are the last to go. Everyone else is up for grabs!
I think Canon is going to eat Sony's lunch. That doesn't mean Sony is going away, but I think that Sony is good at making gadgets and Canon is good at making cameras and the end result is that photographers are preferring Canon's products.
As to the sensors, as far as I know Sony's sensors are made by a spun off company Sony Semiconductor Solutions, which is completely separate from the camera company. They will certainly continue to turn out sensors, even if the ILC portion of the company falls on hard times.