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National Grid Transco (NGG) Stock Chart & Stock Price History

National Grid Transco logo
$79.74 -0.88 (-1.09%)
As of 08/21/2026 03:58 PM Eastern
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National Grid Transco Stock Price Performance

The National Grid Transco (NGG) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 11.69%, with a year-to-date return of 2.97%. In the past month, the stock has decreased 3.27%, reflecting recent market activity.

As of the latest close, National Grid Transco traded at $79.74 with a market cap of $79.36 billion and volume of 599,255 shares. Five years ago, the stock traded at a split-adjusted price of $66.43, representing a 20.04% increase over that period. At the time, it had a market cap of $47.15 billion and a volume of 170,242 shares.

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5 Day
Performance
-3.03%
1 Month
Performance
-3.27%
3 Month
Performance
-8.01%
Year-To-Date
Performance
+2.97%
1 Year
Performance
+11.69%
5 Year
Performance
+20.04%

NGG Stock Chart for Sunday, August, 23, 2026

NGG Chart by TradingView

National Grid Transco Stock Price History

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DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/21/2026$80.63$79.74
-1.10%		$81.21$79.72599,255 shs$79.36 billion
08/20/2026$80.64$80.63
-0.01%		$81.57$80.60645,963 shs$80.24 billion
08/19/2026$82.24$80.64
-1.94%		$82.11$80.23854,682 shs$80.25 billion
08/18/2026$81.39$82.24
+1.04%		$82.34$81.711.76 million shs$81.84 billion
08/17/2026$81.07$81.39
+0.39%		$81.43$80.171.12 million shs$81.00 billion
08/14/2026$81.15$81.07
-0.10%		$81.40$80.81599,630 shs$80.68 billion
08/13/2026$80.61$81.15
+0.67%		$81.20$80.62698,455 shs$80.76 billion
08/12/2026$80.33$80.61
+0.35%		$81.50$80.48552,420 shs$80.22 billion
08/11/2026$79.40$80.33
+1.17%		$80.42$79.71612,473 shs$79.94 billion
08/10/2026$80.91$79.40
-1.87%		$79.95$79.10648,839 shs$79.02 billion
08/07/2026$80.35$80.91
+0.70%		$81.43$80.78610,527 shs$80.52 billion
08/06/2026$80.23$80.35
+0.15%		$81.13$80.12618,483 shs$79.96 billion
08/05/2026$80.45$80.23
-0.27%		$81.15$79.85761,116 shs$79.84 billion
08/04/2026$79.81$80.45
+0.80%		$80.49$79.17762,742 shs$80.05 billion
08/03/2026$79.99$79.81
-0.22%		$80.03$79.35918,262 shs$79.42 billion
07/31/2026$80.31$79.99
-0.40%		$80.47$79.58802,886 shs$79.60 billion
07/30/2026$78.87$80.31
+1.83%		$80.69$79.53887,214 shs$79.92 billion
07/29/2026$80.83$78.87
-2.43%		$79.96$78.76948,775 shs$78.48 billion
07/28/2026$81.20$80.83
-0.45%		$81.95$80.82627,580 shs$80.44 billion
07/27/2026$82.34$81.20
-1.38%		$82.47$81.11746,534 shs$80.81 billion
07/24/2026$82.44$82.34
-0.12%		$83.00$82.26525,202 shs$81.94 billion
07/23/2026$83.89$82.44
-1.73%		$82.45$81.43846,386 shs$82.04 billion
07/22/2026$82.08$83.89
+2.21%		$84.03$83.33725,820 shs$83.48 billion
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This page (NYSE:NGG) was last updated on 8/21/2026 by MarketBeat.com Staff.
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