Costco (COST): RSI(14) 73.38 (96th percentile)
On 2026-10-20, Costco (COST) closed at 994.61 USD, down 0.09% on the day. At the 2026-10-20 close, Costco (COST) had an RSI(14) of 73.38, in the 96th percentile of its history since 1986. Its 20-day return of +10.58% is in the 91st percentile of its history since 1986. At the 2026-10-20 close, Costco (COST) traded at 59.6% of its 52-week range. RSI above 70 is conventionally termed overbought. The RSI(14) of Costco (COST) last entered the overbought zone 4 days ago (2026-10-16) and the oversold zone 302 days ago (2025-12-22). It is trading above its 20-, 50- and 200-day moving averages. At the 2026-10-20 close, the 20/50/200-day moving averages of Costco (COST) were 943.35 / 935.58 / 967.49 USD, with price +5.43% / +6.31% / +2.80% against them. Ranked from highest to lowest, its moving averages are the 200-day, 20-day and 50-day. At the 2026-10-20 close, the 52-week range of Costco (COST) was 844.06–1096.5 USD; it closed 9.29% below the high (6.4× its typical daily range) and 17.84% above the low (9.5× its typical daily range). The high was set 154 days ago (2026-05-19) and the low 308 days ago (2025-12-16). At the 2026-10-20 close, Costco (COST) was 9.29% below its all-time intraday high of 1096.5 USD, set 154 days ago (2026-05-19). Its 20-day volatility is 1.086% daily, in the 25th percentile of its history since 1986. Its daily realised volatility is 1.290% over 5 days, 1.086% over 20 days, 1.120% over 60 days and 1.310% over 120 days. Annualised, these are 20.5%, 17.2%, 17.8% and 20.8% respectively. Its 14-day average true range (ATR) is 15.9 USD, 1.60% of price. It has returned +4.19% (87th percentile since 1986) over 5 days, +6.30% (88th) over 10 days, +10.58% (91st) over 20 days, +4.52% (52nd) over 60 days, -0.41% (31st) over 120 days and +6.22% (33rd) over 252 days. Against the S&P 500, its weekly returns show a beta of -0.01 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 +5.38% (5-day), +7.66% (10-day), +11.26% (20-day), +0.48% (60-day) and -9.51% (252-day). Its weekly-return correlation with changes in the US 10-year TIPS real yield is -0.15 over 52 weeks and +0.08 over 26 weeks. Next earnings are scheduled for 2026-12-10.
Figures reflect the official regular-session close for 2026-10-20.
=== COSTCO (COST) (USD) ===
price & change (as of 2026-10-20, prior 2026-10-19)
close 994.61
change -0.92 (-0.092%)
vs market S&P 500 +0.28% · Nasdaq 100 -0.10% (same day)
listing Exchange: NASDAQ, Currency: USD
range (as of 2026-10-20)
range 12.00
close pos 30.1% of range
moving averages (as of 2026-10-20)
20d MA 943.35 price above by +5.43%
50d MA 935.58 price above by +6.31%
200d MA 967.49 price above by +2.80%
200d MA slope +0.76% over 20 sessions (rising)
price > all MAs
stack: 200d > 20d > 50d
20d MA last crossed above 50d MA: 2026-10-19 (1d ago)
20d MA last crossed below 200d MA: 2026-07-09 (103d ago)
50d MA last crossed below 200d MA: 2026-08-03 (78d ago)
volatility (as of 2026-10-20)
20d stdev 1.086% daily ≈ 17.2% annualised (×√252) (25th pct of own history, since 1986 (10129 obs))
5d vol 1.290% daily ≈ 20.5% annualised (×√252) (47th pct of own history, since 1986 (10144 obs))
60d vol 1.120% daily ≈ 17.8% annualised (×√252) (23rd pct of own history, since 1986 (10089 obs))
120d vol 1.310% daily ≈ 20.8% annualised (×√252) (37th pct of own history, since 1986 (10029 obs))
vs easing-2024 avg 0.85× (1.086% vs 1.278% era avg)
ATR (as of 2026-10-20)
ATR(14) 15.90
ATR% 1.60% (22nd pct of own history, since 1986 (10135 obs))
range/ATR 75.5%
relative volume (as of 2026-10-20)
RVOL 0.95x (today vs prior 20-day average, excl. today)
pctile 55th pct of own history, since 1986 (10129 obs)
avg vol 63d 2,066,765 (≈3-month average daily share volume)
52-week range (as of 2026-10-20)
high 1096.50 (-9.29% from high) [2026-05-19, 154d ago]
low 844.06 (+17.84% from low) [2025-12-16, 308d ago]
drawdown -9.29% from all-time intraday high, 154d 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 2026-10-20)
RSI(14) 73.38 (96th pct of own history, since 1986 (10135 obs))
last overbought 4d ago (2026-10-16)
last oversold 302d ago (2025-12-22)
MACD (as of 2026-10-20)
MACD(12,26,9) +18.33 (above signal) signal +10.99 hist +7.34
returns (as of 2026-10-20)
5d return +4.19% from 954.63 on 2026-10-13 (87th pct of own history, since 1986 (10144 obs))
10d return +6.30% from 935.68 on 2026-10-06 (88th pct of own history, since 1986 (10139 obs))
20d return +10.58% from 899.41 on 2026-09-22 (91st pct of own history, since 1986 (10129 obs))
60d return +4.52% from 951.58 on 2026-07-27 (52nd pct of own history, since 1986 (10089 obs))
120d return -0.41% from 998.67 on 2026-04-29 (31st pct of own history, since 1986 (10029 obs))
252d return +6.22% from 936.33 on 2025-10-17 (33rd pct of own history, since 1986 (9897 obs))
YTD return +15.34% 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 2026-10-19)
vs real yield (Δ) +0.08 (26w)
vs real yield (Δ) -0.15 (52w)
S&P 500 market factor (weekly returns) (as of 2026-10-20)
vs S&P 500 beta -0.49 corr -0.27 (26w)
vs S&P 500 beta -0.01 corr -0.01 (52w)
vs S&P 500 +5.38% rel (5d return)
vs S&P 500 +7.66% rel (10d return)
vs S&P 500 +11.26% rel (20d return)
vs S&P 500 +0.48% rel (60d return)
vs S&P 500 -9.51% rel (252d return)
vs Nasdaq 100 beta -0.35 corr -0.38 (26w)
vs Nasdaq 100 beta -0.14 corr -0.13 (52w)
vs Nasdaq 100 +7.68% rel (5d return)
vs Nasdaq 100 +11.83% rel (10d return)
vs Nasdaq 100 +14.58% rel (20d return)
vs Nasdaq 100 -0.68% rel (60d return)
vs Nasdaq 100 -12.60% 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 -0.04% rel (5d return)
vs XLP -0.98% rel (10d return)
vs XLP +4.52% rel (20d return)
vs XLP +1.72% rel (60d return)
vs XLP -3.83% rel (252d return)
earnings horizon
next earnings 2026-12-10 (51 days)
last reported 2026-09-24 (26 days ago)