On 2026-08-17, Costco (COST) closed at 953.5 USD, down 0.79% on the day. It trades at 43.4% of its 52-week range. Its RSI(14) of 51.57 is in the 46th percentile of its history since 1986. Its 20-day return of +1.89% is in the 54th percentile. Its RSI last entered overbought 91 days ago (2026-05-18) and oversold 238 days ago (2025-12-22). It is trading above some and below others of its 20-, 50- and 200-day moving averages. Its 20/50/200-day moving averages are 948.99 / 950.2 / 958.65 USD, with price +0.47% / +0.35% / -0.54% against them. Its moving averages stack 200-day > 50-day > 20-day. Its 52-week range is 844.06–1096.5 USD; it closed 13.04% below the high and 12.97% above the low. The high was set 90 days ago (2026-05-19) and the low 244 days ago (2025-12-16). It is 13.04% below its all-time high, set 90 days ago (2026-05-19). Its 20-day volatility is 0.942% daily, in the 16th percentile of its history since 1986. Its realized volatility across horizons is 5-day 0.921%, 20-day 0.942%, 60-day 1.360%, and 120-day 1.282% daily. Its 14-day average true range (ATR) is 17.14 USD, 1.80% of price. It has returned +0.08% over 5 days, -0.06% over 10 days, +1.89% over 20 days, -11.22% over 60 days, -4.50% over 120 days, and -2.24% over 252 days. Against the S&P 500, its weekly-return beta -0.03 / correlation -0.02 (52-week); beta -0.15 / correlation -0.12 (26-week). Relative to the S&P 500, it has returned -2.16% (20-day), -15.42% (60-day), and -21.98% (252-day). Its weekly-return correlation to the change in the US 10-year TIPS real yield is -0.14 (52-week); +0.04 (26-week). Next earnings are scheduled for 2026-09-24.
=== COSTCO (COST) (USD) ===
price & change (as of 2026-08-17, prior 2026-08-14)
close 953.50
change -7.60 (-0.791%)
range (as of 2026-08-17)
range 7.25
close pos 55.2% of range
moving averages (as of 2026-08-17)
20d MA 948.99 price above by +0.47%
50d MA 950.20 price above by +0.35%
200d MA 958.65 price below by -0.54%
price mixed vs MAs
stack: 200d > 50d > 20d
volatility (as of 2026-08-17)
20d stdev 0.942% daily ≈ 14.9% annualized (×√252) (16th pct of own history, since 1986 (10084 obs))
term struct 5d 0.921% · 20d 0.942% · 60d 1.360% · 120d 1.282% daily
vs easing-2024 avg 0.73× (0.942% vs 1.285% era avg)
ATR (as of 2026-08-17)
ATR(14) 17.14
ATR% 1.80% (31st pct of own history, since 1986 (10090 obs))
range/ATR 42.3%
relative volume (as of 2026-08-17)
RVOL 0.61x (today vs 20-day average volume)
pctile 16th pct of own history, since 1986 (10084 obs)
52-week range (as of 2026-08-17)
high 1096.50 (-13.04% from high) [2026-05-19, 90d ago]
low 844.06 (+12.97% from low) [2025-12-16, 244d ago]
drawdown -13.04% from all-time high, 90d ago (2026-05-19)
momentum (as of 2026-08-17)
RSI(14) 51.57 (46th pct of own history, since 1986 (10090 obs))
last overbought 91d ago (2026-05-18)
last oversold 238d ago (2025-12-22)
MACD (as of 2026-08-17)
MACD(12,26,9) +1.90 (above signal) signal +0.39 hist +1.51
returns (as of 2026-08-17)
5d return +0.08%
10d return -0.06%
20d return +1.89%
60d return -11.22%
120d return -4.50%
252d return -2.24%
volatility by rate-era
pre-crisis 2.33% (from 1986-07-09)
ZIRP-2009 1.23%
tightening-2015 1.26%
ZIRP-2019 1.39%
tightening-2022 1.64%
easing-2024 1.29%
real-yield sensitivity (weekly returns vs weekly Δ in 10Y TIPS real yield, DFII10) (as of 2026-08-14)
vs real yield (Δ) +0.04 (26w)
vs real yield (Δ) -0.14 (52w)
S&P 500 market factor (weekly returns) (as of 2026-08-17)
vs S&P 500 beta -0.15 corr -0.12 (26w)
vs S&P 500 beta -0.03 corr -0.02 (52w)
vs S&P 500 -2.16% rel (20d return)
vs S&P 500 -15.42% rel (60d return)
vs S&P 500 -21.98% rel (252d return)
vs XLP (Consumer Staples) beta +0.84 corr +0.63 (26w)
vs XLP (Consumer Staples) beta +0.99 corr +0.67 (52w)
earnings horizon
next earnings 2026-09-24 (38 days)