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AltaGas (ATGFF) Stock Chart & Stock Price History

AltaGas logo
$38.35 0.00 (0.00%)
As of 09/2/2026
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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 28.48%, with a year-to-date return of 25.82%. In the past month, the stock has decreased 3.03%, reflecting recent market activity.

As of the latest close, AltaGas traded at $38.35 with a market cap of and volume of 77,098 shares. Five years ago, the stock traded at $20.41, representing a 87.90% increase over that period. At the time, it had a market cap of and a volume of 6,138 shares.

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5 Day
Performance
+1.05%
1 Month
Performance
-3.03%
3 Month
Performance
-3.01%
Year-To-Date
Performance
+25.82%
1 Year
Performance
+28.48%
5 Year
Performance
+87.90%

ATGFF Stock Chart for Thursday, September, 3, 2026

ATGFF Chart by TradingView

AltaGas Stock Price History

Export
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/02/2026$38.35$38.35$38.36$38.3577,098 shs$0.00
09/01/2026$38.63$38.35
-0.72%		$38.36$38.3577,098 shs$0.00
08/31/2026$37.95$38.63
+1.79%		$38.65$38.36200,414 shs$0.00
08/28/2026$37.89$37.95
+0.17%		$38.13$37.9534,224 shs$0.00
08/27/2026$38.31$37.89
-1.10%		$37.93$37.7017,324 shs$0.00
08/26/2026$38.10$38.31
+0.54%		$38.31$38.3111,251 shs$0.00
08/25/2026$37.71$38.10
+1.04%		$38.27$38.1016,340 shs$0.00
08/24/2026$37.79$37.71
-0.21%		$37.76$37.719,388 shs$0.00
08/21/2026$38.66$37.79
-2.26%		$38.58$37.7973,647 shs$0.00
08/20/2026$38.39$38.66
+0.71%		$38.66$38.6636,308 shs$0.00
08/19/2026$38.77$38.39
-0.98%		$38.66$38.3963,591 shs$0.00
08/18/2026$38.30$38.77
+1.23%		$38.77$38.702,479 shs$0.00
08/17/2026$38.30$38.30$38.62$38.305,325 shs$0.00
08/14/2026$38.03$38.30
+0.71%		$38.62$38.305,325 shs$0.00
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
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This page (OTCMKTS:ATGFF) was last updated on 9/2/2026 by MarketBeat.com Staff.
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