Seasonality Analysis

Costco Wholesale Corporation (COST) 10-Year Seasonality

Between 2016-05-31 and 2026-05-31, Mon had the strongest weekday average return for Costco Wholesale Corporation (0.13%), while Fri was the weakest (-0.01%). On the annual profile, Nov ranked best (6.48%) and Dec ranked worst (-1.52%).

Stock2016-05-31 → 2026-05-31Updated 2026-06-01
Prompt used in FactorBench
Show the 10-year seasonality of Costco Wholesale Corporation (COST). Include monthly averages and day-of-week averages.

Annual Seasonality (Average Monthly Return)

BucketAverage ReturnRelative StrengthSamples
Jan3.23%
10
Feb1.48%
10
Mar1.27%
10
Apr2.38%
10
May0.79%
11
Jun2.10%
10
Jul4.00%
10
Aug2.69%
10
Sep-1.11%
10
Oct0.76%
10
Nov6.48%
10
Dec-1.52%
10
StrongestNov (6.48%)
WeakestDec (-1.52%)

Weekday Seasonality (Average Daily Return)

BucketAverage ReturnRelative StrengthSamples
Mon0.13%
468
Tue0.12%
518
Wed0.10%
515
Thu0.12%
506
Fri-0.01%
507
StrongestMon (0.13%)
WeakestFri (-0.01%)