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As of the latest SEC filings, ATMOS ENERGY CORP (ATO) is held by 695 institutional funds. The largest fund shareholder is VANGUARD TOTAL STOCK MARKET INDEX FUND (VTI), holding an estimated $970,289,827.20 in market value, representing 0.05% of its portfolio.

Funds holding ATMOS ENERGY CORP (ATO)

Source: SEC Form N-PORT institutional portfolio disclosures

Ticker:
ATO
CIK:
0000731802
Showing top 25 of 695 institutional funds
Fund Type Manager Weight Market Value Shares
Report Date
Filing Date
VTI
VANGUARD TOTAL STOCK MARKET INDEX FUND
ETF Vanguard 0.05% $970,289,827.20 5,252,760 Mar 31, 2026 May 28, 2026
VFIAX
VANGUARD 500 INDEX FUND
ETF Vanguard 0.05% $776,951,161.44 4,206,102 Mar 31, 2026 May 28, 2026
NAESX
VANGUARD SMALL-CAP INDEX FUND
ETF Vanguard 0.43% $704,658,957.52 3,814,741 Mar 31, 2026 May 28, 2026
QUAL
iShares MSCI USA Quality Factor ETF
ETF BlackRock / iShares 1.21% $604,167,746.70 3,180,165 Apr 30, 2026 Jun 25, 2026
CFNAX
American Funds Fundamental Investors
MF Capital Group / American Funds 0.37% $563,835,818.32 3,052,381 Mar 31, 2026 May 28, 2026
XLU
State Street(R) Utilities Select Sector SPDR(R) ETF
ETF State Street (SPDR) 2.15% $524,268,424.88 2,838,179 Mar 31, 2026 May 28, 2026
CMLAX
American Mutual Fund
MF Independent / Boutique 0.39% $449,678,100.48 2,366,976 Apr 30, 2026 Jun 26, 2026
VEIPX
VANGUARD EQUITY INCOME FUND
MF Vanguard 0.72% $449,650,226.72 2,434,226 Mar 31, 2026 May 28, 2026
VISVX
VANGUARD SMALL-CAP VALUE INDEX FUND
ETF Vanguard 0.74% $448,715,358.80 2,429,165 Mar 31, 2026 May 28, 2026
IVV
iShares Core S&P 500 ETF
ETF BlackRock / iShares 0.05% $392,927,702.16 2,127,153 Mar 31, 2026 May 28, 2026
FXAIX
Fidelity 500 Index Fund
MF Fidelity 0.05% $381,585,259.03 2,042,857 Feb 28, 2026 Apr 24, 2026
SPY
SPDR S&P 500 ETF Trust
ETF State Street (SPDR) 0.05% $356,045,952.80 1,927,490 Mar 31, 2026 May 28, 2026
CIRAX
Capital Income Builder
MF Independent / Boutique 0.25% $314,163,656.66 1,653,667 Apr 30, 2026 Jun 26, 2026
VWNAX
VANGUARD WINDSOR II FUND
MF Vanguard 0.47% $302,264,449.34 1,591,033 Apr 30, 2026 Jun 26, 2026
CICAX
Investment Co of America
MF Independent / Boutique 0.15% $243,078,589.60 1,315,930 Mar 31, 2026 May 28, 2026
SDY
State Street(R) SPDR(R) S&P(R) Dividend ETF
ETF State Street (SPDR) 1.11% $230,203,790.32 1,246,231 Mar 31, 2026 May 28, 2026
CWMAX
Washington Mutual Investors Fund
MF Capital Group / American Funds 0.10% $223,061,787.34 1,174,133 Apr 30, 2026 Jun 26, 2026
PDGIX
T. Rowe Price Dividend Growth Fund, Inc.
MF T. Rowe Price 0.96% $216,898,039.28 1,174,199 Mar 31, 2026 May 28, 2026
VUIAX
VANGUARD UTILITIES INDEX FUND
ETF Vanguard 1.85% $204,069,195.74 1,092,506 Feb 28, 2026 Apr 28, 2026
VWIAX
VANGUARD WELLESLEY INCOME FUND
MF Vanguard 0.40% $189,327,286.24 1,024,942 Mar 31, 2026 May 28, 2026
NOBL
ProShares S&P 500 Dividend Aristocrats ETF
ETF ProShares 1.54% $184,708,785.82 988,858 Feb 28, 2026 Apr 24, 2026
VDADX
VANGUARD DIVIDEND APPRECIATION INDEX FUND
ETF Vanguard 0.14% $176,472,042.04 928,898 Apr 30, 2026 Jun 26, 2026
RSP
Invesco S&P 500 Equal Weight ETF
ETF Invesco 0.20% $173,967,915.66 915,717 Apr 30, 2026 Jun 29, 2026
VIIIX
VANGUARD INSTITUTIONAL INDEX FUND
MF Vanguard 0.05% $172,303,491.04 932,782 Mar 31, 2026 May 28, 2026
MSIGX
Invesco Main Street Fund
MF Invesco 1.27% $143,915,169.44 757,528 Apr 30, 2026 Jun 26, 2026
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