National Grid Transco, PLC National Grid PLC (NEW) American Depositary Shares (NGG)

Market Cap

$82.30B

Current · Retrieved: Oct 25, 2026 · USD

NGG Market Cap

Current$82.30BretrievedOct 25, 2026

NGG Market Cap ($47.56B → $82.30B · CAGR +2.0%)

Latest values, visible window

High-resolution chart · PNG

NGG market cap history

Daily history. Dates identify market observations.

National Grid Transco, PLC National Grid PLC (NEW) American Depositary Shares Market Cap — Daily history
Date	Market Cap
Aug 7, 2009	51,555,988,960
Jul 31, 2009	51,344,858,740
Jul 24, 2009	51,385,074,020
Jul 17, 2009	50,017,754,500
Jul 10, 2009	48,720,811,720
Jul 2, 2009	49,535,171,140
Jun 26, 2009	49,937,323,940
Jun 19, 2009	50,118,292,700
Jun 12, 2009	48,690,650,260
Jun 5, 2009	49,444,686,760
May 29, 2009	53,315,407,460
May 22, 2009	51,304,643,460
May 15, 2009	48,670,542,620
May 8, 2009	48,087,421,060
May 1, 2009	46,830,693,560
Apr 24, 2009	43,140,941,620
Apr 17, 2009	44,015,623,960
Apr 9, 2009	42,537,712,420
Apr 3, 2009	43,231,426,000
Mar 27, 2009	42,024,967,600
Mar 20, 2009	43,311,856,560
Mar 13, 2009	42,980,080,500
Mar 6, 2009	44,146,323,620
Feb 27, 2009	48,871,619,020
Feb 20, 2009	49,856,893,380
Feb 13, 2009	50,972,867,400
Feb 6, 2009	53,928,690,480
Jan 30, 2009	51,173,943,800
Jan 23, 2009	49,092,803,060
Jan 16, 2009	51,545,935,140
Jan 9, 2009	56,462,253,120
Jan 2, 2009	55,587,570,780
Dec 26, 2008	54,441,435,300
Dec 19, 2008	54,702,834,620
Dec 12, 2008	53,868,367,560
Dec 5, 2008	51,385,074,020
Nov 28, 2008	57,367,096,920
Nov 21, 2008	52,893,147,020
Nov 14, 2008	58,975,708,120
Nov 7, 2008	63,278,743,080
Oct 31, 2008	62,755,944,440
Oct 24, 2008	56,361,714,920
Oct 17, 2008	62,765,998,260
Oct 10, 2008	53,023,846,680
Oct 3, 2008	69,592,542,040
Sep 26, 2008	72,528,257,480
Sep 19, 2008	72,900,248,820
Sep 12, 2008	70,748,731,340
Sep 5, 2008	67,471,186,020
Aug 29, 2008	71,914,974,460
Aug 22, 2008	74,056,438,120
Aug 15, 2008	72,900,248,820
Aug 8, 2008	73,071,163,760
Aug 1, 2008	70,990,023,020
Jul 25, 2008	73,845,307,900
Jul 18, 2008	73,342,616,900
Jul 11, 2008	70,959,861,560
Jul 3, 2008	72,156,266,140
Jun 27, 2008	70,246,040,340
Jun 20, 2008	72,819,818,260
Jun 13, 2008	75,162,358,320
Jun 6, 2008	76,177,794,140
May 30, 2008	81,456,049,640
May 23, 2008	79,656,415,860
May 16, 2008	78,711,356,780
May 9, 2008	75,745,479,880
May 2, 2008	77,283,714,340
Apr 25, 2008	77,886,943,540
Apr 18, 2008	78,369,526,900
Apr 11, 2008	78,671,141,500
Apr 4, 2008	79,736,846,420
Mar 28, 2008	75,916,394,820
Mar 20, 2008	79,284,424,520
Mar 14, 2008	79,777,061,700
Mar 7, 2008	79,173,832,500
Feb 29, 2008	79,626,254,400
Feb 22, 2008	82,783,153,880
Feb 15, 2008	83,808,643,520
Feb 8, 2008	83,346,167,800
Feb 1, 2008	84,914,563,720
Jan 25, 2008	84,170,581,040
Jan 18, 2008	89,217,598,680
Jan 11, 2008	89,810,774,060
Jan 4, 2008	90,393,895,620
Dec 28, 2007	91,922,076,260
Dec 21, 2007	91,700,892,220
Dec 14, 2007	92,836,973,880
Dec 7, 2007	93,329,611,060
Nov 30, 2007	92,666,058,940
Nov 23, 2007	90,966,963,360
Nov 16, 2007	90,283,303,600
Nov 9, 2007	91,389,223,800
Nov 2, 2007	91,690,838,400
Oct 26, 2007	91,027,286,280
Oct 19, 2007	87,789,956,240
Oct 12, 2007	87,568,772,200
Oct 5, 2007	87,116,350,300
Sep 28, 2007	87,991,032,640
Sep 21, 2007	84,321,388,340
Sep 14, 2007	82,360,893,440