2 Undervalued Growth Stocks That I'm Aggressively Buying

MercadoLibre’s margin guidance reset to 7% for 2026 has pressured the stock, but the article argues accelerating top-line growth and ongoing investment support a bullish long-term view. Meta is presented as undervalued at 19x forward P/E, with AI-driven ad monetization and increased capex seen as misunderstood by the market. The author sees about 35% upside to consensus targets for META and views both names as core portfolio positions.

Analysis

The market is treating both names as if higher reinvestment mechanically destroys equity value, but the more important second-order effect is moat expansion. For MELI, margin pressure tied to long-duration investment can actually widen the gap versus subscale regional competitors that cannot fund logistics, fintech, and merchant acquisition at the same cadence; that creates a slower but more durable operating leverage story over 12-24 months. For META, capex is less a cost overhang than a prerequisite for protecting ad-load efficiency and maintaining the quality of its auction marketplace, which should keep monetization per impression compounding even if reported free cash flow looks temporarily softer.

The consensus mistake is likely timing, not direction. MELI’s reset may cap near-term multiple expansion, but if top-line growth stays ahead of expectations for another 2-3 quarters, the market will eventually re-rate the stock on incremental contribution margins rather than headline margin targets. META is more immediately mispriced: a low-teens multiple on next-year earnings power would be justified only if AI capex failed to convert into higher ad ROI, and that is not the base case; the catalyst is likely to show up in quarterly ad pricing and engagement metrics before it appears in consensus numbers.

Risks are asymmetric by horizon. Over days to weeks, both can underperform if investors continue to de-risk high-quality growth with elevated reinvestment intensity; over months, the main failure mode is execution—either MELI’s logistics/credit expansion drags longer than expected or META’s capex outruns monetization. The contrarian read is that the market is underestimating how much optionality these investments create: MELI could emerge as the dominant consumer-finance/logistics platform in LatAm, while META can use AI to defend share and push ROIC higher once the capex cycle normalizes.

Key Decisions for Investors

• Add MELI on any 5-8% pullback over the next 2-6 weeks; target a 9-12 month horizon where multiple expansion follows sustained revenue acceleration and margin stabilization.
• Stay long META, but express it via call spreads into the next 1-2 earnings cycles to limit capex-related multiple compression risk while retaining upside if ad monetization re-accelerates.
• Pair trade: long META / short a basket of slower-growth ad names over 3-6 months; the risk/reward favors the platform with the strongest AI-driven pricing power and balance sheet flexibility.
• For more aggressive accounts, buy MELI Jan-2027 upside calls or a call spread; the thesis is that current margin skepticism delays, rather than prevents, a higher terminal earnings power rerate.
• Trim only on evidence of execution slippage: if MELI gross profit growth decelerates for two consecutive quarters or META’s capex fails to lift ad efficiency metrics by the next reporting season.