https://apnews.com/e9171e84d017e283bfc5e7d10343f5ad

DETROIT (AP) — In the middle of last year, Tesla's losses were piling up, sales weren't enough to cover expenses and big debt payments loomed. The situation was so bad that one influential Wall Street analyst raised the possibility that Tesla wouldn't be able to pay its bills and would have to be restructured financially.

Since then, the electric car and solar panel maker's shares have skyrocketed, rising over 700% this year alone. Monday morning it will join the prestigious S&P 500 index with a market value of over $600 billion. It's the largest addition in the history of the index.