Copasa

CSMG3.SA · Brazil

Copasa traded $72.2M (converted to USD) on 23 Oct 2026, 1.0× its 20-session average.

504 trading days of history, to 2026-10-23 · all values converted to USD

Last close

$12.80

23 Oct

1-day change

+2.6%

vs previous close

Market cap

$4.9B

as of 23 Oct

Turnover

1.5%

of market cap traded

Dollar volume

$72.2M

as of 23 Oct

vs prior 20 sessions

1.0×

as of 23 Oct

Share of market volume

1.2%

as of 23 Oct

Volatility

34.2%

annualised

Infinity volume insights

since 10 April 2025

Every session our rules flagged for this company since 10 April 2025: 19. Those marked “In the feed” were published in the daily feed at the time; the rest are computed with the rules in use now. The feed shows a few a day across every market, so most never appear there. We began tracking this company on 13 October 2026; findings before then are marked “Before we tracked it”: it traded that way, and we were not yet watching.

2026-10-06Before we tracked it
Copasa traded above 1.5× its average dollar volume for a third straight session
The three sessions: 2.3×, 3.3×, 1.8×. $82.8M against a 20-day average of $46.4M, on a rising price (+1.5%).

The latest is shown; the other 18 open with the full page.

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Volume by window

	Dollar volume	vs prior 20 sessions
Last session	$72M	1.0×
Week	For members · Sign in
Month

Sessions to 23 Oct.

Price and dollar volume

Bars coloured by direction

The last three months, one point a week (the week's last close and its total dollar volume).

How these are measured

Turnover: — dollar volume over market cap; how hard this name is traded relative to its size.
Vs prior 20 sessions: — above 1 means heavier trading than in the 20 sessions before it.
Share of market volume: — of the 67 names tracked in Brazil, not the whole market.
Volatility: — from daily returns over the held history. Indicative, not a risk model.
Market cap: — the latest session's close × shares outstanding, in USD. Each day in the history has its own, from that day's close; the share count is refreshed monthly.

Prices and volume via the daily pipeline, converted to USD. USD values converted at ECB reference rates.

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