Key Points

• Tesla's sales saw a strong resurgence last quarter, but the company posted negative free cash flow.

• The need for heavy investments in robotaxis, humanoid robots, and semiconductors suggests that free cash flow will remain under pressure.

• Tesla's $43.5 billion cash position provides a cushion as the company pursues big growth bets.

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Tesla's (NASDAQ: TSLA) business is in an interesting spot. The company saw a significant sales rebound in the second quarter, with revenue rising 26% year over year to reach $22.5 billion. Recent reports also suggest that the company's share of the U.S. electric vehicle (EV) market has risen sharply amid a substantial sales contraction for the overall industry. And while the company's net income fell 5% annually in the second quarter, the business still recorded net income of $1.11 billion in the period.

On the other hand, positive net income doesn't tell the whole story because the metric doesn't include capital expenditures (capex) that are recorded as assets on the balance sheet. With Tesla betting big on its robotaxi project, Optimus humanoid robots, and other potential growth drivers, the company recorded $5.79 billion in capex in Q2. As a result, the business posted -$1.1 billion in free cash flow (FCF) in the period. With FCF coming up negative lately, the company's $43.5 billion cash position provides a valuable cushion.

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Tesla will likely have to continue spending heavily on its growth bets

Tesla posted substantial sales growth in the second quarter as some of the pressures facing the brand eased, higher gas prices encouraged EV purchases, and price cuts helped spur demand. On the other hand, it remains to be seen whether this sales growth momentum is sustainable -- and banking on the core EV business to be an earnings driver that can support the company's highly growth-dependent valuation seems unwise.

While Tesla has seen competitors based in the U.S., Japan, and South Korea reduce their focus on the EV market, BYD and other China-based rivals are making inroads in the market and continue to bet heavily on long-term growth in the category. CEO Elon Musk appears to have a good grasp on the challenging competitive landscape and has been positioning robotaxis, humanoid robots, and semiconductor projects as the core elements of his company's growth strategy.

Tesla's Cybercab event at the beginning of this month suggests that it will be a while before the business generates meaningful revenue, even though public operations have officially begun in Austin, Texas, and the event also coincided with an announcement that the U.S. National Highway Traffic Safety Administration (NHTSA) is conducting a regulatory review of the company's Cybercab vehicles.

With production of Cybercabs still in a relatively early phase and the need for continued tech development to get the vehicle in position to meet commercialization goals, Tesla will likely need to continue devoting substantial capex to the project. The same can be said for its Optimus humanoid robotics project. Additionally, it's virtually certain that capital expenditures for the Terafab chip manufacturing project will see a dramatic ramp-up.

For better or worse, these promising but risky bets are now central to the performance outlook for Tesla stock. The company will almost need to spend in excess of its current cash position in order to secure long-term wins in these categories, but $43.5 billion in cash and equivalents gives Musk's company a strong financial foundation to work with.

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Keith Noonan has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Tesla. The Motley Fool has a disclosure policy.