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Is Costco's Stock Overdue for a Big Rally?

2026-09-28 13:28 •David Jagielski, Cpa •The Motley Fool Positive Axe Cap view: Neutral •Equities•Earnings•Consumer•Retail •COST

Axe Cap view

Costco’s Rally Looks A Long Way Off

Strong sales but pricey shares keep Costco’s near-term upside capped.

Costco’s latest results show the kind of sales growth we love to see—11% net sales up and nearly 7% comparable store growth. For any retailer, that’s impressive, especially in a tricky consumer climate. Yet, the stock has only managed a modest 7% gain this year, lagging the broader market. The main reason? Costco’s shares trade at 45 times trailing earnings, a steep premium even for a high-quality operator. That multiple suggests a lot of the good news is already baked in, limiting room for a near-term rally. South African retail doesn’t offer a perfect playing field for comparison, but if we think about our local players—like Shoprite or Woolworths—they’re valued far more conservatively with better near-term catalysts. If the rand weakens sharply, we might see some volatility in imported goods retailers, but Costco itself feels far removed from immediate JSE moves. We’d say hold if you own it, but adding aggressively now looks unwise. The risk is that earnings disappoint or the US consumer stalls further, pushing the stock lower despite strong sales. this is just our opinion and not financial advice

How I would invest

Hold existing Costco shares but avoid fresh buys given the rich valuation; instead, watch local consumer names like Shoprite for better entry points. Consider USD/ZAR volatility as a risk factor.

What I would watch
  • COST
  • Shoprite
  • USD/ZAR
What could go wrong
  • US consumer slowdown impacting Costco’s sales
  • Rand weakness increasing inflation and hurting SA retail stocks
How strongly I feel

6/10

Costco's business remains strong with 11% net sales growth and 6.7% adjusted comparable growth in Q4 FY2026, outperforming market expectations. However, the stock has underperformed the S&P 500 this year (up 7% vs. 13%), trading at a steep 45x trailing earnings multiple. Despite solid fundamentals, the high valuation limits near-term upside potential, making it a safe long-term hold rather than a near-term rally candidate.

Our take is based on reporting first published by The Motley Fool.

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