Costco Stock Is Up 15% This Year. Time to Buy?

Costco shares are up roughly 15% year-to-date—mirroring gains in peers Walmart and Target—despite having lost value over the prior 12 months; its Q1 fiscal 2026 (ended Nov. 23, 2025) revenue rose 6% with net income of $2.0 billion (+11%). The stock now trades at a P/E of about 52, well above Walmart, Target and Amazon, prompting the view that its low-double-digit profit growth does not justify the valuation; management strengths (≈92% membership renewal) and international expansion support fundamentals, but the Motley Fool advises against adding shares until the multiple narrows. Upcoming Q2 fiscal 2026 results (due March 5) and continued peer-driven retail strength are the primary near-term catalysts for investor reassessment.

Analysis

Market structure: The recent 15% YTD move in COST is largely a sector rotation trade—WMT and TGT up similarly—driven by defensiveness and healthy consumer demand (Costco Q1 rev +6%, NI +11%, 92% membership renewals). Winners: discount and membership-based retailers (COST, WMT, TGT) capture share vs specialty retailers; losers: higher-margin non-essential discretionary names if consumers reallocate spend. FX and commodities matter: a stronger USD compresses translated international sales, while lower fuel/food inflation would bolster discretionary basket and margins.

Risk assessment: Key tail risks are multiple compression (P/E 52 -> back to peer mid-20s = ~40–50% downside), macro slowdown hitting big-ticket bulk purchases, and international regulatory/real-estate setbacks. Immediate horizon: earnings on Mar 5, 2026 are the next binary (days); short-term (weeks/months) expect mean reversion or volatility around comps/guidance; long-term (years) membership economics support steady cash flow but not rapid multiple expansion. Hidden dependencies include membership fee hikes, capex for new warehouses, and inventory/transportation cost swings.

Trade implications: With IV muted and premium in valuation, prefer relative-value and volatility-selling strategies over outright long. Short-term: expect 10–25% downside if comps disappoint or guidance is conservative; that creates tactical entry points. Longer-term holders should consider collars or staged buys tied to P/E or same-store-sales triggers.

Contrarian angles: Consensus discounts Costco’s runway in Europe/Asia but may overpay for predictability—premium reflects lower execution risk. The market may be overlooking upside from modest membership fee increases (each +$5 could move EPS ~1–2%); conversely, stubborn multiple expansion across retail could push COST higher without fundamental improvement. Historical parallel: quality retailers have sustained higher multiples, but sizing matters—don’t pay >2x peer multiple without catalysts.

Key Decisions for Investors

• Do not initiate new outright long positions in COST now; instead set a buy limit to establish a 1–2% weighting if COST falls 20% from current levels or its forward P/E drops to ≤30, whichever comes first (timeframe 3–6 months).
• Implement a pair trade: go long TGT (1.5–2% position) and short COST (1% position) on a 3–6 month horizon — thesis: re-rating upside in TGT/operational leverage vs COST multiple downside; close if spread narrows by 50% or after 6 months.
• For existing COST holders, collar the position ahead of Mar 5 earnings: buy Mar/Apr 2026 10% OTM puts and sell near-term 5% OTM calls to cap upside while funding protection; use 1:1 notional size and roll after earnings if volatility collapses.
• If conviction is short-term (earnings binary), buy a Mar 2026 put spread on COST (10%–20% OTM) sized at 0.5–1% portfolio risk to capture expected 10–25% downside on a miss; exit on either 50% P/L or 2 weeks post-earnings.
• Rotate 2–4% from COST-sized positions into WMT and AMZN for defensive, lower-P/E exposure; re-evaluate post-earnings and if CPI/transportation costs decelerate materially over the next 90 days.