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COST

+2.8%⚪ No clear catalyst

Costco Wholesale Corporation · Consumer Defensive

$981.41Vol 3.12M · 1.4× normalMkt cap +$11.87BMarket closed — 2026-10-14 session

What happened

Move
+2.8%
Price
$981.41
Volume
3.12M
1.4× normal
Market cap
$434.89B
+$11.87B today

Why it moved

Sector-wide movelow confidence
  • Sector-wide move — computed

Sector-driven move — the stock is moving largely with its sector (+1.4%); no major company-specific catalyst detected.

Verdict — was the move justified?

⚪ No clear catalyst

An unusually large move with no reliable catalyst identified — most likely flow/positioning-driven rather than news-driven.

How unusual is this move

σ score
2.7σ
vs own 20d volatility
Percentile
95th
of 1277 daily moves
Avg daily move
±1.0%
own 5y average
vs sector
+1.5%
beyond sector median

Today’s move is among the largest 5% of COST’s daily moves over the last 5 years — while the sector moved +1.4% and the market -0.6%.

What happened after similar moves

86 similar up moves in COST’s 5-year history:

After 5 days
+1.0%
58% higher
After 20 days
+2.9%
66% higher

Median of same-direction moves within ±35% magnitude band. Past patterns don’t predict outcomes — context, not signal.

Fundamental context

V 47G 72P 61H 87Q 94EW 32/65

Latest earnings: EPS surprise -0.8%, revenue -1.1% (2026-09-24)

Valuation context

P/E (TTM)
49.3
5y median 47.3
P/E percentile
61%
vs own 5y history
FCF yield
0.0%

Valuation sits near the middle of its own historical range (61th percentile).

Full fundamental analysis on PreMarketPrice

Pillar scores, financial statements, valuation history, news & more for COST

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COST +2.8% — Why it moved today | GainersLosers