COST monthly performance report
View COST's monthly returns, drawdown, and seasonality trends — updated every month.
COST monthly report
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Key takeaways
- Costco (COST) closed November 2026 at $1,106.21, up 9.28% for the month and +19.58% over the trailing 12 months.
- Year-to-date, COST is +28.28%, outperforming the S&P 500 which has returned +10.62% YTD.
- The stock is trading +13.41% versus its 200-day moving average ($975.43), a bullish technical signal.
- Over the past three years, COST has outperformed the S&P 500 by +19.94%, with a relative strength index reading of 111.6.
- Win rate over the trailing 39 months stands at 53.8% — 21 positive months versus 18 negative months.
Costco ended November 2026 at $1,106.21, posting a monthly return of +9.28%. The S&P 500 returned −0.18% over the same window, leaving relative performance at +9.46%.
The current quarter stands at +21.52% (Q4 2026 (QTD)), while medium-term trend remains constructive: price is +13.41% versus the 200-day moving average ($975.43).
Year-to-date, COST is +28.28% against SPY +10.62%, a gap of +17.66%. The stock is currently −0.30% below its 52-week high, with maximum 3-year drawdown at −21.07%.
| Period | COST | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | +1.28% | −0.36% | +1.65% |
| 1 Week | +5.00% | +2.59% | +2.40% |
| 1 Month | +9.28% | −0.18% | +9.46% |
| 3 Months | +16.02% | −2.37% | +18.38% |
| 6 Months | +6.24% | +0.83% | +5.41% |
| YTD | +28.28% | +10.62% | +17.66% |
| 12 Months | +19.58% | +12.25% | +7.33% |
| 3 Years | +91.31% | +71.37% | +19.94% |
| Rank | Month | Return |
|---|---|---|
| #1 | May 2024 | +12.03% |
| #2 | Dec 2023 | +11.36% |
| #3 | Oct 2026 | +11.20% |
| #4 | Nov 2024 | +11.18% |
| #5 | Nov 2026 | +9.28% |
| Rank | Month | Return |
|---|---|---|
| #1 | Mar 2025 | −9.81% |
| #2 | May 2026 | −5.74% |
| #3 | Dec 2024 | −5.72% |
| #4 | Dec 2025 | −5.61% |
| #5 | Jul 2025 | −5.08% |
| Quarter | Return |
|---|---|
| Q3 2025 | −6.50% |
| Q4 2025 | −6.84% |
| Q1 2026 | +15.55% |
| Q2 2026 | −6.12% |
| Q3 2026 | −2.69% |
| Q4 2026 (QTD) | +21.52% |
| Year | Return |
|---|---|
| 2023 | +44.60% |
| 2024 | +38.81% |
| 2025 | −5.89% |
| 2026 | +28.28% |
| Metric | Value |
|---|---|
| 52-Week High | $1,109.50 (2026-11-13) |
| 52-Week Low | $844.06 (2025-12-16) |
| Current Price | $1,106.21 |
| 200-Day Moving Average | $975.43 |
| Price vs 200DMA | +13.41% |
| 3-Year Maximum Drawdown | −21.07% (2025-12-22) |
| Current Drawdown from 52W High | −0.30% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 111.6 |
| 3-Year Excess Return vs S&P 500 | +19.94% |
| RS Peak | 143.8 (Apr 2025) |
| RS Trough | 88.4 (Sep 2026) |
| Status | Outperforming Benchmark |
Frequently asked questions
What was COST's return for this report period?
COST returned +9.28% in the latest monthly window ending 2026-11-13.
Has COST outperformed SPY year to date?
YTD COST: +28.28% vs SPY: +10.62%.
What is COST's 12-month return?
+19.58% over the trailing 12 months.
Is COST above or below its 200-day moving average?
Price is +13.41% versus 200DMA ($975.43).
What is the maximum drawdown in the 3-year window?
−21.07% on 2025-12-22.