Followers of the stock market have been focused on Apple's ascent above $1 trillion in market value, but there's a different trillion-dollar threshold that's more important to the long-term health of the stock market. Whether the breaking of the $1 trillion milestone is a good or bad thing for equities depends on how one interprets the data, and both sides are laid out below. If you follow the stock market in any capacity, you know that Apple's recent climb above $1 trillion in market value captured widespread attention.