Daily trading records

ATS Stock Price on August 21, 2026

Direct answer

ATS closed at $19.74 on August 21, 2026.

The open was $19.48, the high was $19.79 and the low was $19.35.
Volume was 134,125. The change from the prior close was +$0.46 (+2.39%).

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Review ATS's price trend and period performance.

The chart connects verified session closes from May 27, 2026 through August 21, 2026.

Closing-price trend by trading session

Period performance is calculated from verified trading sessions.

5-session performance

-2.81%

From the August 14, 2026 close of $20.31 to $19.74 on August 21, 2026.

20-session performance

-25.28%

From the July 24, 2026 close of $26.42 to $19.74 on August 21, 2026.

60-session performance

-44.03%

From the May 27, 2026 close of $35.27 to $19.74 on August 21, 2026.

ATS Historical prices
Historical pricesOpenHighLowCloseVolumePrior-close change
$19.48$19.79$19.35$19.74134,125+$0.46 (+2.39%)

Verified data

Open
$19.48
High
$19.79
Low
$19.35
Close
$19.74
Volume
134,125
Prior-close change
+$0.46 (+2.39%)

Read the frequently asked questions.

What was ATS's closing price on August 21, 2026?

ATS closed at $19.74 on August 21, 2026.

What were ATS's open, high and low on August 21, 2026?

The open was $19.48, the high was $19.79 and the low was $19.35.

How much did ATS change from the prior close on August 21, 2026?

The change from the prior close was +$0.46 (+2.39%).

What was ATS's volume on August 21, 2026?

Trading volume was 134,125 shares.

What is the source for ATS's daily prices?

Daily aggregate prices are provided by Polygon.