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AltaGas (ATGFF) Stock Chart & Stock Price History

AltaGas logo
$39.59 0.00 (0.00%)
As of 10/13/2026 02:41 PM 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 31.14%, with a year-to-date return of 29.89%. In the past month, the stock has increased 5.71%, reflecting recent market activity.

As of the latest close, AltaGas traded at $39.59 with a market cap of and volume of 59,480 shares. Five years ago, the stock traded at $21.04, representing a 88.17% increase over that period. At the time, it had a market cap of and a volume of 1,538 shares.

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5 Day
Performance
+1.67%
1 Month
Performance
+5.71%
3 Month
Performance
+2.91%
Year-To-Date
Performance
+29.89%
1 Year
Performance
+31.14%
5 Year
Performance
+88.17%

ATGFF Stock Chart for Wednesday, October, 14, 2026

ATGFF Chart by TradingView

AltaGas Stock Price History

Price Date
0 Results
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
10/13/2026$38.94$39.59
+1.67%		$39.59$39.3659,480 shs$0.00
10/12/2026$38.94$38.94$39.00$38.8836,074 shs$0.00
10/09/2026$38.58$38.94
+0.94%		$39.00$38.8836,074 shs$0.00
10/08/2026$38.13$38.58
+1.17%		$38.70$38.544,227 shs$0.00
10/07/2026$38.35$38.13
-0.57%		$38.13$38.0271,786 shs$0.00
10/06/2026$37.41$38.35
+2.52%		$38.43$37.9082,287 shs$0.00
10/05/2026$37.44$37.41
-0.09%		$37.50$37.4121,717 shs$0.00
10/02/2026$36.91$37.44
+1.42%		$37.50$37.4429,932 shs$0.00
10/01/2026$36.64$36.91
+0.75%		$37.02$36.3568,031 shs$0.00
09/30/2026$36.75$36.64
-0.30%		$36.64$36.644,885 shs$0.00
09/29/2026$37.32$36.75
-1.53%		$36.82$36.7164,123 shs$0.00
09/28/2026$36.93$37.32
+1.06%		$37.32$37.2840,997 shs$0.00
09/25/2026$38.14$36.93
-3.18%		$37.34$36.8337,241 shs$0.00
09/24/2026$38.20$38.14
-0.15%		$38.14$38.1421,002 shs$0.00
09/23/2026$38.07$38.20
+0.34%		$38.20$37.9760,564 shs$0.00
09/22/2026$38.19$38.07
-0.31%		$38.35$38.0174,895 shs$0.00
09/21/2026$38.32$38.19
-0.34%		$38.23$38.19172,277 shs$0.00
09/18/2026$38.17$38.32
+0.39%		$38.32$38.3279,096 shs$0.00
09/17/2026$37.82$38.17
+0.94%		$38.17$38.1782,204 shs$0.00
09/16/2026$37.56$37.82
+0.68%		$37.87$37.7052,363 shs$0.00
09/15/2026$37.45$37.56
+0.29%		$37.56$37.4824,729 shs$0.00
09/14/2026$37.60$37.45
-0.41%		$37.45$37.4322,103 shs$0.00
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This page (OTCMKTS:ATGFF) was last updated on 10/13/2026 by MarketBeat.com Staff.
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