Costco (COST) Anomalies

Check historical price trends and seasonality for Costco (COST).

View:

Costco (COST) average YTD return over the past 10 years is +20.59%.

Over the past 10 years, the return for the specified period (Jul 21 for 30 days) is +3.49%.

6 wins 1 losses with a win rate of 85.71%.

AI Analysis (Past 10 Years YTD)

Costco (COST) Anomaly Analysis

1) Overview:

Costco exhibits a strong upward trend throughout the year, generally increasing in value from January to December. The most significant gains tend to occur towards the end of the year, particularly in December.

2) Buy-the-dip points:

Historically, January has shown some weakness, with a slight dip in the beginning of the month.

3) Summary:

Based on historical averages, Costco tends to perform very well in December, suggesting a potential opportunity for investors looking to capitalize on seasonal trends.

Disclaimer: This analysis is generated by AI (Gemini) based on historical statistical trends. It does not guarantee future performance. Investment decisions are your own responsibility.
YearStart DateStart PriceEnd DateEnd PriceReturnRate (%)
2025 2025-07-21 947.5600 2025-08-19 980.8500 33.2900 3.51
2023 2023-07-21 557.8600 2023-08-19 544.9400 -12.9200 -2.32
2022 2022-07-21 529.4600 2022-08-19 554.5300 25.0700 4.74
2021 2021-07-21 415.0100 2021-08-19 454.2600 39.2500 9.46
2020 2020-07-21 327.7400 2020-08-19 340.9000 13.1600 4.02
2017 2017-07-21 150.4400 2017-08-19 157.0800 6.6400 4.41
2016 2016-07-21 167.0500 2016-08-19 168.0200 0.9700 0.58
Avg 442.1600 457.2257 15.07 3.49
365 Days (Prev Close Change) Average (Past 10 Years) [Horz=Month / Vert=Day]
Negative Zero/Flat Positive ※ Change from prev day close. Excl Feb 29.
Mode:
Day \ Month Jan Total +1.58% Feb Total +0.52% Mar Total +2.10% Apr Total +1.61% May Total +1.05% Jun Total +2.06% Jul Total +3.84% Aug Total +2.57% Sep Total -1.04% Oct Total +0.76% Nov Total +6.23% Dec Total -2.12%
1 Avg -0.10% 0.00% -0.11% +0.03% +0.19% -0.36% +0.02% -0.02% +0.07% -0.09% -0.27% +0.12% -0.75%
2 Avg +0.27% -0.13% +0.67% +1.31% -0.31% +0.35% +0.81% +0.30% +0.07% +0.19% +0.23% +0.09% -0.29%
3 Avg -0.07% -0.21% -0.14% -0.99% -0.14% +0.37% -0.03% +0.16% +0.23% -0.39% -0.19% +0.61% -0.13%
4 Avg +0.20% +0.27% +0.05% +0.24% -0.29% +0.56% +0.60% 0.00% +0.11% +0.35% +0.20% +0.49% -0.14%
5 Avg -0.07% -0.24% -0.02% +0.08% +0.26% -0.58% -0.04% +0.28% -0.43% +0.17% -0.40% +0.44% -0.34%
6 Avg +0.18% +0.54% +0.19% -0.24% +0.60% +0.05% +0.15% +0.22% +0.66% +0.19% -0.78% +0.24% +0.35%
7 Avg +0.02% -0.53% -0.09% -0.84% -0.05% -0.20% +0.24% +0.47% +0.33% +0.25% -0.06% +0.66% +0.01%
8 Avg +0.06% +0.26% 0.00% -0.47% -0.01% -0.36% -0.02% +0.23% +0.46% -0.23% +0.41% +0.35% +0.14%
9 Avg +0.18% -0.01% +0.40% +0.15% +0.54% +0.47% -0.11% +0.53% -0.19% +0.33% +0.69% -0.56% -0.06%
10 Avg +0.06% -0.12% -0.06% -0.02% +0.23% +0.16% +0.08% -0.20% +0.24% -0.47% -0.26% +0.75% +0.44%
11 Avg -0.06% +0.35% -0.46% -0.47% -0.36% -0.30% -0.29% -0.19% -0.25% +0.11% +0.25% +0.34% +0.60%
12 Avg +0.16% +0.42% +0.52% -0.05% +0.11% -0.32% +0.02% +0.10% +0.35% +0.39% +0.13% +0.02% +0.26%
13 Avg +0.05% -0.33% +0.44% +0.39% +0.36% -0.34% -0.25% +0.19% +0.06% -0.49% +0.38% +0.31% -0.09%
14 Avg -0.01% -0.48% +0.26% +0.08% +0.42% +0.05% +0.51% +0.86% -0.17% -0.16% -0.11% +0.17% -1.50%
15 Avg +0.21% +0.01% +0.76% +0.50% +0.13% +0.35% +0.03% +0.16% +0.27% -0.11% +0.06% -0.07% +0.47%
16 Avg -0.08% -0.05% -0.06% -0.63% +0.55% +0.39% -0.91% -0.27% +0.51% -0.24% -0.07% +0.04% -0.24%
17 Avg +0.16% +0.60% +0.36% +1.24% +0.34% -0.26% +0.06% +0.07% -0.05% -0.27% +0.37% -0.20% -0.31%
18 Avg -0.17% -0.31% -0.26% -0.06% -0.07% -1.19% -0.10% -0.20% -0.10% -0.08% +0.46% +0.03% -0.09%
19 Avg +0.01% -0.25% +0.11% +0.11% +0.08% +0.03% -0.06% +0.25% +0.18% -0.02% -0.11% +0.01% -0.27%
20 Avg -0.08% +0.19% -0.43% -0.27% +0.09% -0.03% 0.00% +0.26% +0.27% -0.20% -0.06% -0.38% -0.45%
21 Avg +0.02% +0.45% -0.36% +0.16% -0.88% -0.11% +0.47% -0.01% +0.04% -0.17% +0.29% +0.49% -0.18%
22 Avg +0.02% +0.15% -0.10% -0.26% -0.03% -0.14% +0.08% +0.11% -0.13% +0.03% +0.13% +0.46% -0.11%
23 Avg -0.02% +0.06% -0.25% -0.15% +0.07% -0.12% +0.37% +0.13% -0.28% -0.29% -0.03% +0.17% +0.06%
24 Avg +0.08% +0.02% +0.15% +0.14% +0.43% +0.45% -0.01% -0.18% -0.65% +0.20% +0.22% -0.01% +0.17%
25 Avg +0.03% -0.40% +0.04% +0.03% -0.13% +0.39% +0.10% +0.08% -0.08% 0.00% +0.17% +0.15% 0.00%
26 Avg +0.17% +0.36% -0.33% +1.01% -0.14% +1.61% -0.13% -0.28% -0.14% -0.12% -0.58% +0.25% +0.54%
27 Avg -0.01% -0.09% -0.67% -0.40% +0.18% +0.26% -0.07% +0.06% +0.80% -0.28% -0.05% +0.18% -0.09%
28 Avg +0.08% +0.41% -0.08% +0.17% +0.04% -0.17% -0.15% +0.26% -0.09% +0.15% +0.05% +0.34% +0.02%
29 Avg +0.06% +0.04% - +0.80% -0.47% -0.47% +0.25% +0.11% +0.21% -0.18% -0.06% +0.36% +0.05%
30 Avg +0.21% +0.35% - +0.36% -0.11% +0.68% +0.43% -0.13% -0.05% +0.41% +0.27% +0.40% -0.26%
31 Avg +0.08% +0.26% - +0.13% - -0.18% - +0.46% +0.32% - -0.51% - +0.07%

Past 10 Years 1-Month [Jul 21 - Aug 19] Return Ranking

Rank Stock Avg Return (%) Wins Losses