Costco Wholesale Corp (COST) Daily/Weekly Backtest Results
*Transaction costs, taxes and dividends are excluded from these calculations. Past performance may not necessarily be a reliable guide to future performance.
Calculations for Costco
Expectancy is the percentage profit or loss you would expect to make on the next purchase of this stock with an entry point at the specified signal and profit target as set above. Given a large enough sample size, a positive expectancy indicates the trading strategy is likely to be profitable.
Expectancy calculation for 11 signal(s) occurring before 23 June 2024 for a 7.5% profit target: (100% * 7.82%) + (0% * 0%) - (0% * 0%) = 7.82%.
Wins: 11 Breakevens: 0 Losses: 0
To even out CAGR calculations, large individual returns from particularly quick trades have been capped at 300%.
The Sharpe Ratio calculation assumes a risk free return rate of 2% per calendar year. Ideally the ratio should be a positive number. A higher positive number indicates the strategy has a more attractive risk adjusted rate of return for this particular buy signal and stock over the chart's timeframe.
Costco Analysis
Market sector: Consumer Staples.
External links: Seeking Alpha Research, Zacks Research.
These links may show useful information about why a stock's price has fallen significantly.
Williams %R (Weekly) Backtest Summary (Fixed Profits System)
This table summarises how profitable it would have been to have bought this stock at each Williams %R (Weekly) entry signal. Hover over the icons to see more details of the particular trade, including the maximum percentage drawdown and how long it took to reach the desired percentage profit.
Key:
= profit point not achieved.
= profit point achieved with CAGR above 15%.
= profit point achieved with CAGR of between 5% and 15%.
= profit point achieved but CAGR was less than 5%.
| Signal Date, Score and Sector Score | Buy Signal | Price | Performance (mouseover for details) | ||||
|---|---|---|---|---|---|---|---|
| 5% | 6% | 7.5% | 10% | 20% | |||
| 30 June 2026 smart_toyLOW (39) emoji_food_beverageLOW | Williams %R (Weekly) | $ 938.74 | |||||
| 29 May 2026 smart_toyLOW (44) emoji_food_beverageLOW | Williams %R (Weekly) | $ 970.90 | |||||
| 22 December 2025 smart_toyLOW (62) emoji_food_beverageLOW | Williams %R (Weekly) | $ 852.00 | |||||
| 18 November 2025 smart_toyLOW (67) emoji_food_beverageLOW sirenFIRE SALE | Williams %R (Weekly) | $ 903.84 | |||||
| 26 September 2025 smart_toyLOW (58) emoji_food_beverageLOW | Williams %R (Weekly) | $ 920.75 | |||||
| 23 July 2025 smart_toyLOW (58) emoji_food_beverageLOW | Williams %R (Weekly) | $ 941.78 | |||||
| 13 March 2025 smart_toyLOW (46) emoji_food_beverageLOW sirenFIRE SALE | Williams %R (Weekly) | $ 906.31 | |||||
| 28 December 2022 smart_toyLOW (74) sirenFIRE SALE | Williams %R (Weekly) | $ 455.26 | |||||
| 07 October 2022 smart_toyMEDIUM (83) sirenFIRE SALE | Williams %R (Weekly) | $ 473.20 | |||||
| 11 May 2022 smart_toyMEDIUM (80) sirenFIRE SALE | Williams %R (Weekly) | $ 496.50 | |||||
| 22 February 2021 smart_toyLOW (52) | Williams %R (Weekly) | $ 351.48 | |||||
| 19 January 2021 smart_toyLOW (45) | Williams %R (Weekly) | $ 358.41 | |||||
| 28 February 2020 smart_toyMEDIUM (84) sirenFIRE SALE | Williams %R (Weekly) | $ 282.54 | |||||
| 14 December 2018 smart_toyLOW (67) sirenFIRE SALE | Williams %R (Weekly) | $ 209.54 | |||||
| 23 June 2017 smart_toyLOW (59) | Williams %R (Weekly) | $ 153.50 | |||||
| 31 October 2016 smart_toyLOW (61) | Williams %R (Weekly) | $ 137.11 | |||||
| 13 September 2016 smart_toyLOW (35) | Williams %R (Weekly) | $ 139.50 | |||||
| 18 May 2016 smart_toyLOW (61) | Williams %R (Weekly) | $ 129.70 | |||||
The data for Costco Wholesale Corp (exchange: XNAS symbol: COST) was last updated 01 Jul 2026 09:10. Data for this stock is available from 01 Dec 2015 - 30 Jun 2026.