The market's buzzing about Uber (UBER) these days. Shares are up 51% this year, and suddenly everyone's an expert. But before you jump in, let's dissect what's really driving this rally. Is it sustainable growth, or just a sugar rush fueled by hype and a billionaire's bet?
Uber's pitch is simple: they connect riders with drivers, and hungry people with restaurants. In Q3 2025, mobility gross bookings hit $25.1 billion, translating to $7.7 billion in revenue. Delivery chimed in with $23.3 billion in gross bookings and $4.5 billion in revenue. Growth is undeniable, but is it quality growth? The question becomes: at what cost is this growth being achieved, and is Uber truly innovating, or just subsidizing rides and deliveries to juice the numbers?
They tout a "powerful network effect," arguing that more users make the platform more valuable to everyone. Lower wait times, more food choices, a larger customer pool for drivers and restaurants – it sounds great on paper. But this network effect hinges on maintaining a delicate balance. If Uber prioritizes growth over profitability, for example by slashing prices, they risk attracting price-sensitive customers who will jump ship the moment a better deal comes along. I've seen this movie before – a "network effect" that vanishes as soon as the subsidies dry up.
Furthermore, the competitive landscape is far from settled. While Uber leads with 189 million monthly active users, Lyft and DoorDash are nipping at their heels, particularly in the US market. These competitors aren't just going to roll over; they're actively innovating and vying for market share. Does Uber have a truly sustainable competitive advantage, or is it just winning a war of attrition through sheer financial muscle?
Bill Ackman's Pershing Square Capital Management owns a massive chunk of Uber – 30.3 million shares, representing 20% of his $14 billion portfolio. It's his single biggest position. The article mentions Ackman follows Warren Buffett's philosophy. (Concentrated bets on high-quality companies, held for the long term.)
Ackman's involvement is undoubtedly a positive signal, but let's not mistake it for a guarantee. Hedge fund managers, even the best ones, can be wrong. And while Ackman's fund still holds a significant stake, that doesn't automatically mean he's more bullish than he was in January; it could simply reflect the difficulty of unwinding such a large position without tanking the stock price.

Plus, recent data shows some insider selling. Tony West sold 3,125 shares at an average of $92.10, and CFO Prashanth Mahendra-Rajah dumped 5,500 shares at $94.41. These sales, while not massive, do raise an eyebrow. (Are they taking profits, or do they know something we don't?) Over the last 90 days, insiders sold a total of 567,625 shares, valued at over $55 million. That's a lot of confidence… walking out the door.
I've looked at hundreds of these filings, and while insider selling isn't always a red flag, it's a data point that demands further investigation. We need to understand the why behind these sales. Are they diversifying their holdings, or are they losing faith in Uber's long-term prospects?
Wall Street analysts are overwhelmingly bullish on Uber. We see 20 "buy" ratings versus zero "sell" ratings – that's quite the consensus. Price targets range from $106 to $135, with a median of $110. But let's be honest: analyst ratings should be taken with a grain of salt. They often lag behind market realities and are prone to groupthink. How many of these analysts factored in the potential impact of a recession, or a major regulatory shift?
Morningstar gives Uber a fair value estimate of $93 per share. It's currently trading around $83.76 (as of Tuesday). So, Morningstar believes it's fairly valued. But they also assign Uber a "Very High Uncertainty Rating," citing the potential impact of autonomous vehicles. This is the part of the report that I find genuinely puzzling. After Earnings, Is Uber Stock a Buy, a Sell, or Fairly Valued? This is the part of the report that I find genuinely puzzling.
If autonomous vehicles (AVs) truly take off, Uber's entire business model could be upended. AV companies might develop their own ride-hailing apps, cutting Uber out of the equation entirely. Uber bulls argue that Uber's user base makes it the perfect partner for AV companies. But what if AV companies decide they don't need a partner? What if they can build their own user base from scratch, offering a superior service at a lower cost?
Uber's stock surge is a complex story, not just a simple narrative of growth and innovation. While the company has undoubtedly made progress, several red flags warrant caution. The reliance on aggressive growth strategies, insider selling, and the looming threat of autonomous vehicles all suggest that the current valuation may be detached from reality. Is Ackman a visionary, or just a lucky gambler? Only time will tell, but for now, I'm staying on the sidelines.