Costco Wholesale (COST) Chart Patterns, Support & Resistance & Technical Analysis

Auto-detected technical analysis for COST · data as of Aug 4, 2026. The chart above is live; the read below updates daily.

$947.85last close · Aug 4, 202652-week range $844.06 – $1,096.50 · 13.56% below the high
Falling Wedge · playing out now

COST just broke higher out of a falling wedge — a brief, tidy pause inside a strong run. That's usually a breather before another push up.

On this chart, setups like it have followed through about 62% of the time.

As long as price stays above $907.2, the setup is intact — a daily close back below there is the cue to step away.

A natural first target sits near $1037 — but moves like this often run further. The simple way to follow the rest is to stay with the 10-day average, and only step aside when a day closes below it.

COST Falling Wedge Pattern

COST is currently forming a falling wedge on the daily timeframe. Detected Aug 4, 2026.

DirectionBullishTarget$1,037.17Projected move+12.3%Breakout level$921.90

New to this pattern? What a falling wedge is and how to trade it →

How Falling Wedges Have Performed

Win rate
56.2%
Avg return
+0.55R
Backtested trades
8,465
COST win rate
72.2%

Historical pattern statistics (2006-08-04 – 2026-08-03), not a prediction.

How these backtests work →

COST Pattern Trade History

Every completed pattern trade our nightly backtest found on COST's daily chart, newest first — wins and losses alike.

PatternEntryExitOutcomeResult
Falling WedgeJul 27, 2026 @ $938.70Aug 4, 2026 @ $947.85Win+0.42R
Falling WedgeJul 9, 2026 @ $930.25Jul 29, 2026 @ $974.03Loss-1.13R
TriangleMay 13, 2026 @ $1,025.79May 22, 2026 @ $1,028.24Win+0.06R
Falling WedgeApr 2, 2026 @ $1,008.00May 22, 2026 @ $1,028.24Win+0.43R
TriangleMar 18, 2026 @ $986.53Apr 2, 2026 @ $1,014.96Loss-1.08R
Rising WedgeMar 3, 2026 @ $1,002.54Apr 8, 2026 @ $1,030.27Loss-1.52R
Rising WedgeFeb 20, 2026 @ $983.13Apr 8, 2026 @ $1,030.27Loss-1.04R
TriangleNov 17, 2025 @ $910.35Dec 15, 2025 @ $853.94Win+1.61R
TriangleSep 22, 2025 @ $942.50Nov 19, 2025 @ $884.81Win+1.50R
Rising WedgeJun 5, 2025 @ $1,033.47Jul 16, 2025 @ $952.16Win+2.42R
Rising WedgeMay 30, 2025 @ $1,045.81Jun 17, 2025 @ $977.72Loss-1.08R
Rising WedgeDec 18, 2024 @ $980.43Dec 31, 2024 @ $913.70Win+2.40R

COST Support and Resistance Levels

Price is bouncing off a floor near $924.79 and starting to climb. On the weekly chart, the next ceiling overhead sits near $1,285.79 — about 36% away.

  • Traders commonly watch $1,285.79 as a target (its 200% extension) — think of it as a sensible next stop, not a guarantee.
  • That ceiling is the first place the climb might pause — worth watching how price behaves as it gets there.
  • There's nothing to act on yet — the spot to watch is right at the $924.79 floor, where price is testing it now, not out here in the climb. Chasing once price pulls away tends to be worse odds.

Nearest auto-detected support sits near $910.67, resistance near $1,072.74. These are chart/swing-derived levels, not formula pivots.

Resistance
$1,072.74$1,079.59
Support
$910.67$852.03

COST Recent Daily Prices

DateOpenHighLowClose
Aug 4, 2026$945.00$950.86$937.01$947.85
Aug 3, 2026$965.15$967.98$948.75$954.08
Jul 31, 2026$945.74$955.56$937.51$951.89
Jul 30, 2026$955.04$960.76$949.68$954.17
Jul 29, 2026$968.07$978.80$963.00$974.03
Jul 28, 2026$970.55$987.55$965.87$966.58
Jul 27, 2026$938.11$956.61$936.66$951.58
Jul 24, 2026$925.01$936.66$921.28$935.03
Jul 23, 2026$920.51$926.53$916.76$926.06
Jul 22, 2026$930.88$933.60$920.97$927.31

COST Frequently Asked Questions

What chart pattern is COST forming right now?
As of Aug 4, 2026, TradingPal's detector identifies a falling wedge on Costco Wholesale (COST) on the daily chart, with a measured-move target of $1,037.17.
Is a falling wedge bullish or bearish?
The falling wedge detected on COST is a bullish pattern, projecting a measured-move target of $1,037.17. See its full backtested track record above — that's the real edge, not the textbook label.
How reliable is a falling wedge pattern, and what is its win rate?
Across TradingPal's backtest of the falling wedge family (8,465 trades over 631 symbols), it resolved in the expected direction 56.2% of the time with an average of +0.55R. These are historical statistics, not a prediction.
What are the support and resistance levels for COST?
Based on auto-detected, swing-derived levels (as of Aug 4, 2026), COST's nearest support is around $910.67 and nearest resistance around $1,072.74.
What is the price target if COST's pattern breaks out?
The detected falling wedge has a geometry-based measured-move target of $1,037.17 (pattern height projected from the breakout). This is a technical target, not a recommendation.
What was COST's closing price on Aug 4, 2026?
Costco Wholesale (COST) last closed at $947.85 on Aug 4, 2026. For the live quote, see the chart above or a real-time quote provider.

Technical analysis for informational purposes only — not investment advice. Auto-detected patterns and levels update daily; the chart above is live.