California-based electric vehicle startup Lucid Group Inc (LCID.US) saw its shares plummet over 10% by Tuesday's market close, with the stock trading at a historical low of $17.36 on an adjusted basis during earlier intraday trading. The core driver behind this sharp decline was Lucid's 10-to-1 reverse stock split that took effect at Tuesday's opening.

A reverse stock split is designed to proportionally consolidate outstanding shares into fewer shares, theoretically raising the per-share price by the same ratio while leaving the company's total market capitalization unchanged. While market cap should theoretically remain constant, in practice, reverse stock splits are often associated with fundamental pressures and prolonged stock price weakness, and this "backdrop" itself tends to trigger selling pressure and discounting.

Both classic and recent research along with market experience show that investors tend to view reverse stock splits as a signal of corporate distress (contrary to regular "forward" stock splits, which typically occur during periods of strong performance/stock price). Therefore, excess returns around the announcement and implementation of reverse stock splits are often negative.

Wall Street analysts interpreting Lucid's decline noted that the day's plunge was not due to any significant negative fundamental changes, but rather a knee-jerk selling reaction to the market's perception that "reverse stock split equals negative signal." More broadly, such operations are commonly seen among companies with growth falling short of expectations and delayed profitability realization, as reverse stock splits often coincide with operational pressure and prolonged stock price weakness.

When announcing its second-quarter earnings, the electric vehicle manufacturer emphasized that one of its most important recent developments was reaching agreements with Nuro and Uber Technologies. Lucid's interim CEO Marc Winterhoff stated this was "much more than a commercial transaction." He emphasized: "This represents strategic synergy with two leading companies in mobility and autonomous driving, who have chosen Lucid Gravity as the core platform for next-generation autonomous robotaxis."

Uber plans to invest approximately $300 million in Lucid, which will directly support the development and large-scale integration of the robotaxi project. Lucid management views this move as a significant demonstration of external confidence in its underlying architecture and validation of broader platform growth opportunities beyond direct-to-consumer sales.

According to the latest SEC filings, Saudi Arabia's sovereign wealth fund - the Public Investment Fund (PIF) - still holds approximately 57.6% controlling stake in the electric vehicle company.

Statistical data shows Lucid Group Inc's stock has declined over 40% year-to-date. In comparison, US electric vehicle leader Tesla (TSLA.US) has fallen 18.2% year-to-date, while Rivian Automotive (RIVN.US) has bucked the trend in the sluggish US EV sector with a 1.5% gain.