These Best Stocks like Carvana have been on a tear — What to do with with them now

Ritholtz Wealth Management highlighted several top-performing stock picks, underscoring a strategy of riding winners while managing risk. Alnylam Pharmaceuticals (ALNY) returned 49% since June, propelled by a 64% Q2 2025 revenue increase to $672 million, raised full-year guidance to $2.8 billion, and key regulatory approvals. eBay (EBAY) gained 32% since May, reporting Q2 revenue up 6% to $2.73 billion and EPS up 16%, driven by strategic AI investments and expanded authenticity guarantees. Carvana (CVNA) achieved a 26% return, with Q2 revenue surging 42% to $4.84 billion and adjusted EBITDA reaching $601 million, prompting raised full-year guidance despite its high volatility.

Analysis

The review highlights three equities—Alnylam Pharmaceuticals (ALNY), eBay (EBAY), and Carvana (CVNA)—that have generated significant returns since their initial recommendation, underscoring a strategy that combines strong fundamental performance with disciplined technical risk management. Alnylam delivered exceptional Q2 2025 results with a 64% year-over-year revenue increase to $672 million, prompting a raised full-year revenue forecast to $2.8 billion. This financial strength is complemented by a key European regulatory approval for AMVUTTRA and upcoming clinical trial catalysts, with the stock consolidating around the $450 level and a critical support identified at $400. eBay's Q2 2025 performance was also robust, with revenue up 6% to $2.73 billion and non-GAAP EPS up 16% to $1.37, supported by strategic investments in AI and its Authenticity Guarantee program; technically, its 50-day moving average ($86) has proven to be a resilient support level. Carvana demonstrated a dramatic operational turnaround in Q2 2025, with revenue surging 42% to $4.84 billion and achieving a net income of $308 million, leading to a significant upward revision in full-year adjusted EBITDA guidance to $2.2 billion. However, this strong performance is framed by a caution regarding its extreme volatility, evidenced by a 3.5 beta and 130% annualized standard deviation.

Key Decisions for Investors

• Investors with existing long positions in Alnylam (ALNY) may consider holding, given its strong revenue momentum and upcoming catalysts, while using a sustained break below the $400 level as a pre-defined exit signal.
• For eBay (EBAY), traders could view the rising 50-day moving average ($86) as a tactical level for risk management, while longer-term investors should watch for orderly behavior if the price pulls back to the $82 support area.
• Any allocation to Carvana (CVNA) must account for its high-risk profile; its 3.5 beta implies volatility significantly greater than the market, so position sizing should be managed conservatively despite the company's strong operational turnaround.
• The overarching strategy suggests that for these winning positions, it is prudent to let them run while strictly adhering to technical levels, such as moving averages and support zones, as objective points to exit if the uptrends falter.