Gotrade News – Two stocks adjacent to Wall Street’s favorite AI sold off on May 5, 2026, even as the broader market continues to rise. Palantir (PLTR) and Arista Networks (ANET) both had strong quarters, and investors used the performance as an opportunity to take profits.
This story is not about weak fundamentals, but what happens when expectations run faster than profits and multiples can no longer absorb anything less than perfection. Both names entered the paper with the weight of years of bull markets priced in, with their next moves dependent on forward signals rather than headline beats.
Important points:
- Palantir posted an 85% increase in first-quarter sales to $1.63 billion and raised its full-year outlook, but its stock price fell about 7% as contract growth slowed from 138% to 61%.
- Arista beat revenue ($2.7 billion vs. $2.62 billion consensus) and EPS ($0.87 vs. $0.81) and doubled its AI revenue target to $3.5 billion, but the stock fell about 10% in after-hours.
- Both companies’ stocks trade at premium multiples (PLTR at around 150 times P/E and ANET at 62 times trailing earnings), leaving little room for forward-looking signals that growth may slow.
Palantir delivered what management called its strongest quarter in its published history, with sales up 85% year-over-year to $1.63 billion and its U.S. business growing at 104%, exceeding 100% for the first time. This is the 11th consecutive quarter of accelerating revenue growth, with the U.S. segment now accounting for 79% of total revenue.
Full-year 2026 guidance was raised to a midpoint of $7.66 billion, implying growth of 71% and operating margin of 60% on a non-GAAP basis. This is a level that few software companies will ever reach, and management cited growing U.S. commercial success as a key driver.
But the stock fell about 7% during the session, driven by gross contract value, a forward-looking booking metric, which slowed sharply. Closed TCV was $2.41 billion, up 61% year-over-year, down sharply from 138% growth in the fourth quarter, while U.S. commercial remaining deal value slowed from 67% to 45%.
The Motley Fool says the problem is that record sales growth is not able to offset a visible slowdown in bookings going forward. Palantir has a market capitalization of approximately $325 billion and trailing revenue of $5.2 billion, so there’s no mathematical opportunity for it to slow down.
Palantir’s price-to-sales ratio is in the low 60s for trailing earnings, in the low 40s for forward earnings, and at a P/E ratio of about 150x, so this reaction isn’t all that surprising given its valuation. These multiples assume years of high growth rates driven by AI tailwinds, and Q1 was the first quarter in which forward-looking metrics pointed in the opposite direction despite an acceleration in reported revenues.
For more information on the underlying business, please visit the PLTR ticker page. Importantly for shareholders, when bookings tell a softer story, earnings acceleration alone can no longer support share prices.
Arista Networks told a similar story in a different form, with the network equipment maker attacking every line investors track and raising its guidance. Still, the stock soared after hours, and first-quarter sales rose 35% year over year and 9% sequentially to $2.7 billion, beating the consensus of $2.62 billion.
Adjusted EPS of $0.87 significantly exceeded expectations of $0.81, and the top line of $2.8 billion and adjusted EPS of $0.88 in Q2 guidance both exceeded expectations. These numbers should typically drive upside, especially in a market still seeking exposure to AI infrastructure.
The headline hike is the most aggressive part, with Arista doubling its 2026 AI-focused revenue target to $3.5 billion and raising its full-year revenue outlook to $11.5 billion, representing growth of about 28%. CEO Jayshree Ullal said demand was “the highest I’ve seen in my time at Arista,” but warned that production capacity would remain “constrained for years to come” due to long lead times for components used in hyperscalar networking equipment.
The Motley Fool said the sale was primarily due to valuation rather than internal operational issues. After an 87% year-over-year rise, the stock appeared on paper at 62 times net earnings and 39 times forward earnings, leaving little room for cautious commentary on near-term execution.
Once a stock was priced for perfect execution, supply comments became a reason to sell rather than buy, and smooth-sailing holders were quickly replaced. Shares fell about 10% in after-hours trading, with supply constraints also limiting how much of the surge in demand can be converted into reported revenues in the short term.
Even if the underlying story is intact, the discrepancy between the order book and the ready-to-ship boxes is exactly what overrating punishes. See the ANET ticker page for the underlying numbers.
The common lesson for both companies is that AI exposure is no longer a free pass, and even beat-and-raises can trigger profit-taking if multiples reflect future growth over many years. Both Palantir and Arista remain category leaders with accelerating fundamentals, but at these multiples the bar for inline surprises gets higher each quarter, and whispers of a slowdown quickly get repriced.
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