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Costco Wholesale Corporation (COST) stock Relative Strength Index

14-Day RSI

55.350.06+0.11%

Summary

As of today, COST 14-day RSI is 55.35, up +0.11% on
Based on its current 14-day relative strength index, COST falls into the strengthening momentum category
COST 14-day RSI reached a 1-year high of 78.35 on
COST 14-day RSI reached a 1-year low of 27.55 on

RSI Chart

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Series
SUGGESTED SERIES

Performance

COST Performance
MetricDateValue1D1M3MYTD1Y3Y5Y
14-Day RSI55.35+0.1%-4.7%+52.2%+39.1%+3.4%-3.0%-11.6%
Price$1,006.85+1.0%+0.4%+17.8%+16.8%+4.3%+102.6%+183.7%
200-Day SMA$948.250.0%-0.3%-0.3%-0.3%+3.1%+90.4%+170.9%
50-Day SMA$987.57+0.1%+4.5%+9.9%+9.7%+0.1%+99.8%+187.3%
Beta0.36-2.7%-20.0%-21.7%-21.7%-52.0%-62.1%-29.4%
ATR$17.56-2.1%-10.8%+34.5%+32.5%-27.7%+107.5%+145.2%
10-Day Volatility9.63%-27.3%-48.3%-28.8%-24.7%-41.1%-28.9%-53.2%
1-Month Volatility14.87%-1.5%-29.2%-14.4%-17.2%-53.2%-15.0%-36.1%
3-Month Volatility19.88%-0.7%-6.2%+11.4%+11.9%-23.1%-14.8%+0.5%
1-Year Volatility20.11%-0.1%-7.8%-6.9%-6.9%+0.3%-35.9%-2.2%

RSI Highs

COST 14-Day RSI Highs Comparison
PeriodHighDateCurrent
1M59.58-7.1%
3M78.35-29.4%
6M78.35-29.4%
1Y78.35-29.4%
3Y85.08-34.9%
5Y85.08-34.9%
All85.92-35.6%

RSI Lows

COST 14-Day RSI Lows Comparison
PeriodLowDateCurrent
1M40.78+35.7%
3M36.37+52.2%
6M29.65+86.7%
1Y27.55+100.9%
3Y25.52+116.9%
5Y19.41+185.2%
All0.00N/A

RSI History

DateValueChange
55.35+39.1%
39.78+22.1%
32.57-48.5%
63.25+86.8%
33.86-46.1%
62.80+11.9%
56.12+22.0%
45.99+12.3%
40.97-28.7%
57.47-1.5%
58.35+14.4%
51.01-4.5%
53.42+20.4%
44.37-11.0%
49.88+7.5%
46.42-29.6%
65.95+39.9%
47.13-7.3%
50.86-8.1%
55.37+15.5%
47.92-7.0%
DateValueChange
51.50-2.6%
52.90-17.3%
63.94+60.6%
39.82-33.8%
60.18-6.4%
64.30+17.5%
54.74-14.6%
64.08+5.5%
60.74-9.0%
66.72+56.3%
42.68+16.2%
36.73-25.0%
48.97+15.2%
42.51-10.1%
47.28-18.4%
57.94+3.6%
55.90+41.5%
39.50-35.2%
60.95+49.8%
40.69-

FAQ

  • What is the current 14-day RSI of COST?

    As of today, COST 14-day RSI is 55.35

  • What 14-day RSI category does COST fall into?

    Based on its current 14-day relative strength index, COST falls into the strengthening momentum category

  • What is COST 14-day RSI 1-year high?

    COST 14-day RSI reached a 1-year high of 78.35 on January 21, 2026

  • What is COST 14-day RSI 1-year low?

    COST 14-day RSI reached a 1-year low of 27.55 on July 30, 2025

Data Sources & References

  1. COST Official Website www.costco.com
  2. Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/909832/000090983226000025/0000909832-26-000025-index.htm
  3. Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/909832/000090983225000101/0000909832-25-000101-index.htm
  4. COST Profile on Yahoo Finance finance.yahoo.com/quote/COST
  5. COST Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/cost