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Big move · Brazil stocks

Costco Wholesale Corporation (COWC34) falls 5.7% to BRL 116.68

Its biggest one-day fall in 3 months.

Published 6 October 2026 · Written from Tradzy's price and volume data

Close
BRL 116.68
On the day
−5.7%
Volume
0.8× average
vs 52-week high
−15.1%

Costco Wholesale Corporation closing prices

BRL 115.00BRL 120.00BRL 125.00Jun '26Jun '26Jul '26Aug '26Sep '26Oct '26BRL 116.68

The last 90 closes up to 6 October 2026. The live chart is on the COWC34 page.

What happened

Costco Wholesale Corporation (COWC34) closed at BRL 116.68 on 6 October 2026, down 5.7% from BRL 123.76 the session before.

It was COWC34's biggest one-day fall in 3 months. Over 5 sessions the price is down 3.2%, and over 20 sessions it is up 0.9%.

The close is 15.1% below the highest close of the past year (BRL 137.46 on 19 May 2026) and 1.6% above the lowest (BRL 114.85 on 22 Sept 2026).

Volume was close to its recent average.

Across the 22 B3 stocks we track, 13 closed higher and 8 closed lower that day, with a median change of +0.49%. COWC34's change was −5.7%.

This page reports what the price and volume data show. It does not say why the price moved.

The numbers

Previous closeBRL 123.76
CloseBRL 116.68
Change on the day−5.72%
Change over 5 sessions−3.16%
Change over 20 sessions+0.86%
Volume1,939
Average volume, up to 20 sessions before2,390
Volume against that average0.8 times
Highest close in the past yearBRL 137.46 (19 May 2026)
Lowest close in the past yearBRL 114.85 (22 Sept 2026)

The full chart and history are on Costco Wholesale Corporation (COWC34). More from this market: B3 news today.

More B3 moves on 6 October 2026

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Built from Tradzy's own price and volume data. It reports what the market did and does not say why. Nothing here is financial advice. See the disclaimer.