Really like the subtle use of audio between the days. I don't think the game should let you go to sleep when you still have more than $10 worth of stocks though. It was kind of annoying to lose the game just because I didn't have $10 in the bank when I pressed the sleep button (even though I had much more money worth of stocks I could have sold). The log on the left side is a great touch.

I'm not sure why your "score" at the end is your greatest amount of money owned, rather than your total net worth. A player could always sell then re-buy all their stocks every turn if they wanted their true "greatest money owned" to be the highest.

Overall it was enjoyable, gives me that "gotta keep the number going up" feeling like playing a clicker, but more interesting.