### Comment:
You're confusing the price of a stock for the value of the underlying asset. Prices only change when buying or selling occurs, as traders try to 'find' the price which reflects the underlying value. There are only traders, there is no external force readjusting the prices of stocks to reflect increasing value. If nobody ever sold then prices would remain the same but (assuming economic growth) fundamentals analysis would find the stocks to be becoming increasingly undervalued.

### REPLY:
You’re missing the fact that companies would issue new stock at higher prices.

### END.