Read This Before Buying Costco Stock for the Long Term​

Costco operates 921 warehouses as of fiscal Q1 (ended Nov. 23, 2025) and reported revenue of just over $67 billion in the quarter, up 8% year-over-year, with net income of about $2 billion (an 11% increase) following roughly 10% profit growth in fiscal 2025. Despite steady, moderate earnings growth, the stock trades at roughly 50x earnings—well above peers (Amazon ~35x, Walmart ~40x, Target ~13x)—prompting a recommendation to refrain from buying due to an outsized valuation premium and limited upside versus alternative investments.

Analysis

Market structure: Costco’s 50x P/E vs peers (AMZN 35x, WMT 40x, TGT 13x) makes it a likely redistribution candidate for investor dollars — winners are lower-P/E, higher-growth e-commerce (AMZN) and value/defensive retailers (WMT, TGT); losers are long-only COST holders if multiple compresses. Stable demand (Q1 revenue +8%, NI +11%) supports fundamentals but leaves little room for valuation disappointment; a 30–40% PE reversion would mechanically imply ~25–35% downside if earnings hold.

Risk assessment: Key tail risks include a sharp macro shock that either tightens credit (hurting discretionary suppliers) or a consumer pullback that paradoxically benefits Costco’s value proposition; regulatory/anti-trust action on membership practices is low probability but high impact. Time horizons: watch immediate (earnings, next 30 days), short-term 3–6 months for re-rating, long-term 12–36 months for structural share shifts tied to e‑commerce penetration and real-estate capex. Hidden dependencies: membership renewal rates, gas/fuel margins, Kirkland SKU mix and new-warehouse cadence are critical second-order drivers.

Trade implications: Direct play — asymmetric short risk on COST via 6–12 month puts or put spreads sized 1–3% portfolio; pair trade — short COST vs long AMZN or WMT to capture relative re-rating. Options: buy 9–12 month COST puts 15–25% OTM or construct a vertical to cap cost; consider selling covered calls on WMT/TGT to fund longs. Rotate 2–4% from high-P/E retail into value/omnichannel names over the next 4–12 weeks, and scale on any PE expansion/contraction triggers.

Contrarian angle: Consensus underweights Costco’s recurring membership moat, cash conversion and low churn — these can protect downside in recession and support higher realized returns than headline P/E implies. The market may be over-pricing re-rating risk short-term but underpricing long-term resilience; activists or buybacks could re-lift the multiple, creating squeeze risk for shorts. Historical parallel: premium-of-quality names (like Starbucks/WMT in prior cycles) compress in mid-cycle but re-expand post-shock; hedge shorts for that pathway.

Key Decisions for Investors

• Establish a 1.5% portfolio bearish position on COST via a 12-month put spread: buy COST 20% OTM put, sell COST 35% OTM put (caps max loss) — target if COST falls 20–30% or PE contracts to 35; close if COST PE reverts to 30 or after 12 months.
• Implement a relative-value pair: long AMZN 2.0% of portfolio, short COST 1.5% (dollar neutral) — thesis: secular e‑commerce growth + lower multiple; rebalance monthly and unwind if AMZN underperforms by 15% or COST outperforms by 15% in 3 months.
• Rotate 3% of portfolio from high-P/E retail into WMT (1.5%) and TGT (1.5%) over next 4 weeks; execute buys on >5% pullback within a 2‑week window and fund positions by trimming growth names that trade >30x forward earnings.
• Monitor Costco membership renewal rate, same-store sales comps, and management guidance at next quarterly release (within 30 days). If renewal <92% or comps decelerate >200 bps YoY, increase short COST exposure to 3% and add additional 6–9 month puts.