Costco (COST): RSI(14) 72.48 (96th percentile)
On 2026-10-16, Costco (COST) closed at 989.11 USD, up 1.14% on the day. At the 2026-10-16 close, Costco (COST) had an RSI(14) of 72.48, in the 96th percentile of its history since 1986. Its 20-day return of +10.48% is in the 90th percentile of its history since 1986. At the 2026-10-16 close, Costco (COST) traded at 57.5% of its 52-week range. RSI above 70 is conventionally termed overbought. The RSI(14) of Costco (COST) last entered the overbought zone today (2026-10-16) and the oversold zone 298 days ago (2025-12-22). It is trading above its 20-, 50- and 200-day moving averages. At the 2026-10-16 close, the 20/50/200-day moving averages of Costco (COST) were 933.74 / 933.79 / 966.12 USD, with price +5.93% / +5.92% / +2.38% against them. Ranked from highest to lowest, its moving averages are the 200-day, 50-day and 20-day. At the 2026-10-16 close, the 52-week range of Costco (COST) was 844.06–1096.5 USD; it closed 9.79% below the high (6.5× its typical daily range) and 17.18% above the low (8.8× its typical daily range). The high was set 150 days ago (2026-05-19) and the low 304 days ago (2025-12-16). At the 2026-10-16 close, Costco (COST) was 9.79% below its all-time intraday high of 1096.5 USD, set 150 days ago (2026-05-19). Its 20-day volatility is 1.082% daily, in the 25th percentile of its history since 1986. Its daily realised volatility is 1.394% over 5 days, 1.082% over 20 days, 1.144% over 60 days and 1.310% over 120 days. Annualised, these are 22.1%, 17.2%, 18.2% and 20.8% respectively. Its 14-day average true range (ATR) is 16.49 USD, 1.67% of price. It has returned +4.46% (88th percentile since 1986) over 5 days, +7.44% (91st) over 10 days, +10.48% (90th) over 20 days, +6.81% (60th) over 60 days, -0.89% (30th) over 120 days and +3.57% (29th) over 252 days. Against the S&P 500, its weekly returns show a beta of -0.02 and a correlation of -0.01 over 52 weeks; over 26 weeks, a beta of -0.49 and a correlation of -0.27. Relative to the S&P 500, it has returned +6.40% (5-day), +8.26% (10-day), +10.36% (20-day), +3.42% (60-day) and -11.24% (252-day). Its weekly-return correlation with changes in the US 10-year TIPS real yield is -0.12 over 52 weeks and +0.15 over 26 weeks. Next earnings are scheduled for 2026-12-10.
Figures reflect the official regular-session close for 2026-10-16.
=== COSTCO (COST) (USD) ===
price & change (as of 2026-10-16, prior 2026-10-15)
close 989.11
change +11.10 (+1.135%)
vs market S&P 500 -1.09% · Nasdaq 100 -2.50% (same day)
listing Exchange: NASDAQ, Currency: USD
range (as of 2026-10-16)
range 12.52
close pos 67.4% of range
moving averages (as of 2026-10-16)
20d MA 933.74 price above by +5.93%
50d MA 933.79 price above by +5.92%
200d MA 966.12 price above by +2.38%
200d MA slope +0.59% over 20 sessions (rising)
price > all MAs
stack: 200d > 50d > 20d
20d MA last crossed below 50d MA: 2026-09-10 (36d ago)
20d MA last crossed below 200d MA: 2026-07-09 (99d ago)
50d MA last crossed below 200d MA: 2026-08-03 (74d ago)
volatility (as of 2026-10-16)
20d stdev 1.082% daily ≈ 17.2% annualised (×√252) (25th pct of own history, since 1986 (10127 obs))
5d vol 1.394% daily ≈ 22.1% annualised (×√252) (52nd pct of own history, since 1986 (10142 obs))
60d vol 1.144% daily ≈ 18.2% annualised (×√252) (25th pct of own history, since 1986 (10087 obs))
120d vol 1.310% daily ≈ 20.8% annualised (×√252) (37th pct of own history, since 1986 (10027 obs))
vs easing-2024 avg 0.85× (1.082% vs 1.280% era avg)
ATR (as of 2026-10-16)
ATR(14) 16.49
ATR% 1.67% (26th pct of own history, since 1986 (10133 obs))
range/ATR 75.9%
relative volume (as of 2026-10-16)
RVOL 1.05x (today vs prior 20-day average, excl. today)
pctile 66th pct of own history, since 1986 (10127 obs)
avg vol 63d 2,061,773 (≈3-month average daily share volume)
52-week range (as of 2026-10-16)
high 1096.50 (-9.79% from high) [2026-05-19, 150d ago]
low 844.06 (+17.18% from low) [2025-12-16, 304d ago]
drawdown -9.79% from all-time intraday high, 150d ago (2026-05-19)
max drawdown (10-year, close-basis) -31.51% (2022-04-07 608.05 -> 2022-05-20 416.43, 43d peak-to-trough); recovered 2023-12-07 (566d after trough)
momentum (as of 2026-10-16)
RSI(14) 72.48 (96th pct of own history, since 1986 (10133 obs))
last overbought 0d ago (2026-10-16)
last oversold 298d ago (2025-12-22)
MACD (as of 2026-10-16)
MACD(12,26,9) +14.84 (above signal) signal +7.20 hist +7.63
returns (as of 2026-10-16)
5d return +4.46% from 946.92 on 2026-10-09 (88th pct of own history, since 1986 (10142 obs))
10d return +7.44% from 920.65 on 2026-10-02 (91st pct of own history, since 1986 (10137 obs))
20d return +10.48% from 895.31 on 2026-09-18 (90th pct of own history, since 1986 (10127 obs))
60d return +6.81% from 926.06 on 2026-07-23 (60th pct of own history, since 1986 (10087 obs))
120d return -0.89% from 998.01 on 2026-04-27 (30th pct of own history, since 1986 (10027 obs))
252d return +3.57% from 954.99 on 2025-10-15 (29th pct of own history, since 1986 (9895 obs))
YTD return +14.70% from 862.34 on 2025-12-31
volatility by rate-era
pre-crisis (to 2008) 2.33% (from 1986-07-09)
ZIRP (2009–2015) 1.23%
tightening (2015–2018) 1.26%
ZIRP (2019–2021) 1.39%
tightening (2022–2023) 1.64%
easing (2024– ) 1.28%
real-yield sensitivity (weekly returns vs weekly Δ in 10Y TIPS real yield, DFII10) (as of 2026-10-15)
vs real yield (Δ) +0.15 (26w)
vs real yield (Δ) -0.12 (52w)
S&P 500 market factor (weekly returns) (as of 2026-10-16)
vs S&P 500 beta -0.49 corr -0.27 (26w)
vs S&P 500 beta -0.02 corr -0.01 (52w)
vs S&P 500 +6.40% rel (5d return)
vs S&P 500 +8.26% rel (10d return)
vs S&P 500 +10.36% rel (20d return)
vs S&P 500 +3.42% rel (60d return)
vs S&P 500 -11.24% rel (252d return)
vs Nasdaq 100 beta -0.33 corr -0.37 (26w)
vs Nasdaq 100 beta -0.14 corr -0.13 (52w)
vs Nasdaq 100 +9.98% rel (5d return)
vs Nasdaq 100 +12.74% rel (10d return)
vs Nasdaq 100 +12.09% rel (20d return)
vs Nasdaq 100 +4.23% rel (60d return)
vs Nasdaq 100 -14.29% rel (252d return)
vs XLP (Consumer Staples) beta +1.01 corr +0.70 (26w)
vs XLP (Consumer Staples) beta +0.95 corr +0.67 (52w)
vs XLP -0.57% rel (5d return)
vs XLP -1.37% rel (10d return)
vs XLP +4.66% rel (20d return)
vs XLP +1.51% rel (60d return)
vs XLP -7.02% rel (252d return)
earnings horizon
next earnings 2026-12-10 (55 days)
last reported 2026-09-24 (22 days ago)