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AltaGas (ATGFF) Stock Chart & Stock Price History

AltaGas logo
$38.30 +0.27 (+0.71%)
As of 10:19 AM Eastern
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AltaGas Stock Price Performance

The AltaGas (ATGFF) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 26.72%, with a year-to-date return of 25.66%. In the past month, the stock has decreased 0.44%, reflecting recent market activity.

As of the latest close, AltaGas traded at $38.03 with a market cap of and volume of 87,200 shares. Five years ago, the stock traded at $20.69, representing a 85.11% increase over that period. At the time, it had a market cap of and a volume of 793 shares.

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5 Day
Performance
+0.47%
1 Month
Performance
-0.44%
3 Month
Performance
-0.31%
Year-To-Date
Performance
+25.66%
1 Year
Performance
+26.72%
5 Year
Performance
+85.11%

ATGFF Stock Chart for Friday, August, 14, 2026

ATGFF Chart by TradingView

AltaGas Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/13/2026$37.93$38.03
+0.26%		$38.03$38.0387,200 shs$0.00
08/12/2026$38.21$37.93
-0.73%		$37.93$37.9367,190 shs$0.00
08/11/2026$37.68$38.21
+1.40%		$38.21$38.2179,145 shs$0.00
08/10/2026$38.12$37.68
-1.15%		$38.12$37.48170,039 shs$0.00
08/07/2026$38.10$38.12
+0.05%		$38.12$38.1281,990 shs$0.00
08/06/2026$38.14$38.10
-0.10%		$38.10$38.1084,327 shs$0.00
08/05/2026$39.48$38.14
-3.39%		$38.60$38.13151,676 shs$0.00
08/04/2026$39.55$39.48
-0.18%		$39.48$38.9925,070 shs$0.00
08/03/2026$40.08$39.55
-1.32%		$40.08$39.451,201 shs$0.00
07/31/2026$39.39$40.08
+1.75%		$40.56$40.0460,744 shs$0.00
07/30/2026$39.50$39.39
-0.28%		$40.61$39.3962,766 shs$0.00
07/29/2026$39.35$39.50
+0.38%		$39.59$39.2047,635 shs$0.00
07/28/2026$39.71$39.35
-0.91%		$39.93$39.3522,130 shs$0.00
07/27/2026$40.62$39.71
-2.24%		$40.44$39.7149,799 shs$0.00
07/24/2026$40.41$40.62
+0.53%		$40.62$40.3047,735 shs$0.00
07/23/2026$39.87$40.41
+1.34%		$40.41$40.1368,968 shs$0.00
07/22/2026$39.00$39.87
+2.23%		$40.00$39.5921,314 shs$0.00
07/21/2026$39.46$39.00
-1.17%		$39.00$39.0027,852 shs$0.00
07/20/2026$39.02$39.46
+1.14%		$39.85$39.4656,606 shs$0.00
07/17/2026$39.02$39.02$39.02$39.0211,484 shs$0.00
07/16/2026$39.02$39.02$39.02$38.839,174 shs$0.00
07/15/2026$38.47$39.02
+1.42%		$39.02$38.839,174 shs$0.00
07/14/2026$38.47$38.47$38.47$38.329,326 shs$0.00
07/13/2026$37.89$38.47
+1.53%		$38.47$38.329,326 shs$0.00
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This page (OTCMKTS:ATGFF) was last updated on 8/14/2026 by MarketBeat.com Staff.
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