Broken
Not playing the game again in its current state. Selling out of stock as it stands now is a cancerous mechanic. If I own my stock, and someone buys it and sells it, that stock goes back to being neutral. This allows someone else to swoop in and take it for half price, making it even easier for two people to gang up on one and take them out. The one can't effectively fight back, because selling out of a large amount of stock costs so much more time. A change needs to be made to this. I don't know if next_version's shift in how the last 5 protection works will fix it all, although it will obviously help. But the game is unacceptable in it's current state.
As a side note, I wouldn't mind an undo button for a claim that I could hit within like 5 seconds of taking a spot. Although I can always just aim better.