Is CVNA a good stock to buy? We came across a bearish thesis on Carvana Co. on Temple 8: The Architecture of the Future’s Substack by Temple 8 Research. In this article, we will summarize the bears’ thesis on CVNA. Carvana Co.’s share was trading at $300.97 as of March 24th. CVNA’s trailing and forward P/E were 33.29 and 40.65 respectively according to Yahoo Finance.
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Carvana Co., together with its subsidiaries, operates an e-commerce platform for buying and selling used cars. CVNA reported a headline blowout in Q4 2025, with revenue of $5.60 billion beating estimates and EPS of $4.22 far exceeding expectations, yet the stock fell over 20% post-earnings as the market focused on deteriorating fundamentals beneath the surface.
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Despite strong unit growth, profitability is beginning to compress at a critical juncture, with gross profit per unit (GPU) declining sequentially and adjusted EBITDA margins falling from 10.1% to 9.1%. This erosion is particularly concerning for a company priced on the expectation of expanding operating leverage, as rising reconditioning costs and accelerating vehicle depreciation signal structural pressure rather than temporary volatility.
The quality of earnings further weakens the narrative, as nearly $685 million of reported profit stemmed from a one-time non-cash tax benefit, masking stagnant operating income despite 58% revenue growth. This suggests Carvana’s growth is increasingly dilutive, with the company selling more vehicles but generating less profit per unit.
Simultaneously, tightening conditions in auto financing are exacerbating risks, as Ally Financial reduced its loan purchase commitment and shifted toward higher-quality originations, forcing Carvana to offload riskier loans at inferior economics, compressing its high-margin financial GPU.
Concerns are amplified by allegations from Gotham City Research regarding undisclosed related-party transactions and overstated earnings, alongside ongoing insider selling and institutional exits. With both “metal” and “financial” GPU under pressure, Carvana faces a scenario where unit economics deteriorate on both fronts. As credit conditions tighten and subprime delinquencies rise, the company’s reliance on gain-on-sale margins becomes increasingly fragile, raising doubts about its ability to service upcoming interest obligations and sustain its valuation.