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AltaGas (ATGFF) Stock Chart & Stock Price History

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$39.93 0.00 (0.00%)
As of 06/12/2026

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 39.96%, with a year-to-date return of 31.00%. In the past month, the stock has increased 3.22%, reflecting recent market activity.

As of the latest close, AltaGas traded at $39.93 with a market cap of and volume of 156,061 shares. Five years ago, the stock traded at $20.86, representing a 91.42% increase over that period. At the time, it had a market cap of and a volume of 5,393 shares.

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5 Day
Performance
-0.60%
1 Month
Performance
+3.22%
3 Month
Performance
+12.64%
Year-To-Date
Performance
+31.00%
1 Year
Performance
+39.96%
5 Year
Performance
+91.42%

ATGFF Stock Chart for Monday, June, 15, 2026

AltaGas Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
06/12/2026$39.93$39.93$40.15$39.93156,061 shs$0.00
06/11/2026$40.17$39.93
-0.60%
$40.15$39.93156,061 shs$0.00
06/10/2026$39.42$40.17
+1.90%
$40.17$39.84146,876 shs$0.00
06/09/2026$39.98$39.42
-1.40%
$39.42$38.8916,834 shs$0.00
06/08/2026$39.98$39.98$40.16$39.9838,308 shs$0.00
06/05/2026$39.83$39.98
+0.38%
$40.16$39.9838,308 shs$0.00
06/04/2026$39.54$39.83
+0.73%
$39.93$39.5230,580 shs$0.00
06/03/2026$39.13$39.54
+1.05%
$39.69$39.25605,937 shs$0.00
06/02/2026$39.09$39.13
+0.10%
$39.22$39.1319,711 shs$0.00
06/01/2026$38.91$39.09
+0.46%
$39.09$38.95235,808 shs$0.00
05/29/2026$39.34$38.91
-1.09%
$38.99$38.73411,328 shs$0.00
05/28/2026$39.02$39.34
+0.82%
$39.59$39.06177,383 shs$0.00
05/27/2026$39.11$39.02
-0.23%
$39.02$38.8854,979 shs$0.00
05/26/2026$39.29$39.11
-0.46%
$39.15$38.7179,117 shs$0.00
05/25/2026$39.29$39.29$39.30$39.29518 shs$0.00
05/22/2026$38.82$39.29
+1.21%
$39.30$39.29518 shs$0.00
05/21/2026$38.63$38.82
+0.49%
$39.10$38.823,274 shs$0.00
05/20/2026$39.24$38.63
-1.55%
$39.00$38.634,703 shs$0.00
05/19/2026$38.68$39.24
+1.45%
$39.24$38.84738 shs$0.00
05/18/2026$38.68$38.68
-0.01%
$38.68$38.58699 shs$0.00
05/15/2026$38.42$38.68
+0.68%
$38.79$38.68812 shs$0.00
05/14/2026$37.97$38.42
+1.19%
$38.42$38.42136 shs$0.00

This page (OTCMKTS:ATGFF) was last updated on 6/15/2026 by MarketBeat.com Staff.
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