Should You Buy Costco Stock Before Thursday’s Q2 Earnings Release?

TLDR

• March 5, 2026 marks Costco’s Q2 fiscal 2026 earnings announcement
• Shares have climbed 13.6% in 2026 following a ~6% decline last year
• Wall Street projects $4.55 EPS versus $4.02 last year, with revenues forecasted at $69.25 billion
• Strong Buy rating dominates analyst sentiment, with mean target of $1,081.57
• Stock valuation shows forward P/E at 49.6 versus sector norm of 18.9

The warehouse retail giant enters its second fiscal quarter earnings announcement on March 5 riding a wave of positive momentum.

Following a roughly 6% decline throughout 2025, COST shares have staged an impressive comeback — climbing 13.6% since the start of 2026. This turnaround has captured significant attention from market watchers.

Costco Wholesale Corporation, COST

Wall Street anticipates Q2 earnings will reach $4.55 per share, marking an increase from the $4.02 reported during the comparable quarter last year. Revenues are projected to touch $69.25 billion, representing a 10% year-over-year jump.

Recent sales figures paint an optimistic picture heading into the earnings release. January delivered approximately $21 billion in net sales, reflecting a 9.3% annual increase.

Across the initial 22 weeks of this fiscal period, the retailer posted an 8.5% year-over-year sales improvement. Performance in comparable sales has maintained consistency throughout different geographical markets.

The digital channel has emerged as a standout performer. Online sales have registered double-digit expansion, though any deceleration in this segment might trigger investor concerns.

Membership expansion deserves close monitoring. Growing membership numbers — fueled partially by inflation driving consumers toward value-oriented retailers — have provided consistent support. The company’s proprietary Kirkland Signature line remains instrumental in cultivating customer loyalty and protecting competitive positioning.

Analyst Views

Bank of America’s Christopher Nardone maintained his Buy recommendation on COST before the earnings announcement, establishing a $1,185 price objective. His thesis emphasizes Costco’s broad demographic reach — resonating with affluent shoppers while simultaneously attracting budget-conscious consumers through competitive pricing.

Citi analyst Steven Zaccone adopted a more reserved position, keeping his Hold designation while modestly adjusting his target from $990 to $1,000.

The Valuation Question

Costco’s decade-long total return of 662% has eclipsed the S&P 500’s performance by more than double. Revenue has expanded at a 9.3% compound annual rate throughout the past five years, without experiencing any yearly contractions.

This impressive performance comes with a substantial valuation premium. COST presently commands a forward P/E ratio of 49.6, considerably above the sector benchmark of 18.9. The trailing P/E multiple reaches 53.6 — roughly 15% higher than Nvidia’s current valuation.

For certain market participants, this premium appears excessive. Any shortfall in comparable sales metrics or weaker membership expansion figures could trigger significant selling pressure.

Q1 2026 generated $66 billion in net sales. The retailer’s operational model — purchasing substantial volumes of a curated product selection — provides negotiating leverage with suppliers while maintaining competitive consumer pricing.

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