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WHAT MOVED THE MARKET TODAY
DAILY NOTES

Utilities · Select Sector

31 stocks · cap-weighted, ETF-derived weights · Oct 9, 2026 close
41.40
+1.57 (+3.93%)
XLU 41.40 · +1.6 pts (+3.93%) 1W
1D1W1MQTD3M6MYTD1Y2Y3Y5Y
41.5841.0740.5640.04EW +3.84%H 41.46 · 15:30L 39.65 · 09:30
Oct 5Oct 6Oct 7Oct 8Oct 9
30-minute bars · index reconstructed live from member prices
Breadth
30 / 31
stocks rose with the index
Concentration
49%
of the gain from CEG, VST, NRG
Biggest driver
CEG +0.44
CONSTELLATION ENERGY, +15.76%
Biggest drag
AWK −0.01
AMERICAN WATER WORKS CO INC, −1.07%

What drove it

31 members · drivers first · 1W · residual 1.9bp within 60bp gate

The XLU rose 3.93% (+1.57 pts) on the week in a broad advance: 30 of 31 stocks rose, with CEG out front at +0.44 points.

Read the latest market-close note: Goldman and Microsoft Push the Dow to a Large Gain While Telecoms Sink Communication Services

+1.6 pts from 30 gainers−0.0 pts from 1 losers
net +1.6 pts · gainers outweigh losers 16.0 to 1
Stock
Points
Return
XLUsum of all 31 stocks
+1.6
100%
+3.93%
CEGCONSTELLATION ENERGY
+0.4
28%
+15.76%
VSTVISTRA CORP
+0.2
15%
+15.28%
NRGNRG ENERGY INC
+0.1
6%
+13.39%
SOSOUTHERN CO/THE
+0.1
5%
+2.90%
PEGPUBLIC SERVICE ENTERPRISE GP
+0.1
4%
+6.17%
SRESEMPRA
+0.1
4%
+3.79%
DUKDUKE ENERGY CORP
+0.1
4%
+2.23%
PCGP G + E CORP
+0.1
4%
+6.53%
AEPAMERICAN ELECTRIC POWER
+0.1
4%
+2.71%
XELXCEL ENERGY INC
+0.0
3%
+3.33%
PPLPPL CORP
+0.0
2%
+4.41%
EXCEXELON CORP
+0.0
2%
+2.53%
NEENEXTERA ENERGY INC
+0.0
2%
+0.70%
EDCONSOLIDATED EDISON INC
+0.0
2%
+2.63%
ETRENTERGY CORP
+0.0
2%
+1.87%
EIXEDISON INTERNATIONAL
+0.0
2%
+4.27%
FEFIRSTENERGY CORP
+0.0
2%
+3.85%
ATOATMOS ENERGY CORP
+0.0
1%
+2.86%
WECWEC ENERGY GROUP INC
+0.0
1%
+2.15%
NINISOURCE INC
+0.0
1%
+3.40%
AEEAMEREN CORPORATION
+0.0
1%
+2.25%
CMSCMS ENERGY CORP
+0.0
1%
+2.74%
CNPCENTERPOINT ENERGY INC
+0.0
1%
+2.13%
DTEDTE ENERGY COMPANY
+0.0
1%
+1.94%
ESEVERSOURCE ENERGY
+0.0
1%
+1.91%
EVRGEVERGY INC
+0.0
1%
+2.26%
LNTALLIANT ENERGY CORP
+0.0
1%
+2.36%
PNWPINNACLE WEST CAPITAL
+0.0
1%
+3.11%
DDOMINION ENERGY INC
+0.0
0%
+0.53%
AESAES CORP
+0.0
0%
+0.10%
AWKAMERICAN WATER WORKS CO INC
−0.0
−1%
−1.07%
Cap weighting, illustrated

SOUTHERN CO/THE and PINNACLE WEST CAPITAL moved almost identically (+2.90% vs +3.11%), yet SO moved the XLU 7.6× as much. In a cap-weighted index, the bigger company's weight turns the same percentage move into far more points.

Attribution map

slicing the +1.57 pt move · cell size = points contributed · color = direction, intensity = return
CEG+0.4 pts(+15.8%)
VST+0.2 pts(+15.3%)
NRG+0.1 pts(+13.4%)
SO+0.1 pts(+2.9%)
PEG+0.1 pts(+6.2%)
SRE+0.1 pts(+3.8%)
DUK+0.1 pts
PCG+0.1 pts(+6.5%)
AEP+0.1 pts(+2.7%)
XEL+0.0 pts(+3.3%)
PPL+0.0 pts
EXC+0.0 pts
NEE+0.0 pts
ED+0.0 pts
ETR+0.0 pts
EIX+0.0 pts
FE+0.0 pts
ATO
WEC
NI+0.0 pts
AEE+0.0 pts
CMS
CNP
DTE
ES
EVRG
LNT
AWK
D

Concentration curve

cumulative share of the +1.57 pt move · sorted by contribution
0%50%100%8162331stocks:3 stocks = 49%100% covered at 27

When they drove it

cumulative points through the period
0CEG +0.44VST +0.23NRG +0.09AWK −0.01Oct 2Oct 9

Breadth

member returns, this period
−2%+2%+6%+10%+14%
From −1.07% (AWK) to +15.76% (CEG). Equal-weight, the XLU would be +3.84% vs the actual +3.93%; the gap is what cap weighting did.

By sector

point contribution · sums to +1.57 pts
-31
+1.6

The year, session by session

every trading day of 2026 · hover for the move
JANFEBMARAPRMAYJUNJULAUGSEPOCT

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