Last refreshed: September 4, 2026 (US ET)
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VLO

Defensive

VALERO ENERGY CORP

Energy·Oil & Gas Refining & MarketingYield: Mid (1-3%)

Valero Energy Corporation manufactures, markets, and sells petroleum-based and low-carbon liquid transportation fuels and petrochemical products in the United States, Canada, the United Kingdom, Ireland, Latin America, Mexico, Peru, and internationally. It operates through three segments: Refining, Renewable Diesel, and Ethanol. The company produces California Reformulated Gasoline Blendstock for Oxygenate Blending (CARBOB) and Conventional Blendstock for Oxygenate Blending (CBOB) gasolines, CARB diesel, diesel, jet fuel, heating oil, and asphalt; feedstocks; aromatics; sulfur and residual fuel oil; intermediate oils; and sulfur, sweet, and sour crude oils.

Close · 3M

+57.17%

VLO · 3M

+57.17%

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Held by 1 AI ETF

AMOM1.950%

as of Sep 2

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals18
Win rate100% (18/18)
Avg buy return+12.97%
AMOMnow 1.950% of fund14 signals

AMOM · Sudden change · 1d

weight 2.390% → 1.950% (-0.440 pp)·stock up 18.6% in the 30 days before

Sep 2·entry $366.09·now $370.69

+1.26%
since Sep 2

AMOM · Accumulation · 5d

weight 2.260% → 2.390% (+0.130 pp)·stock up 17.7% in the 30 days before

Sep 1·entry $361.99·now $370.69Drifting

+2.40%
since Sep 1

AMOM · Accumulation · 5d

weight 2.230% → 2.340% (+0.110 pp)·stock up 14.7% in the 30 days before

Aug 31·entry $358.92·now $370.69Drifting

+3.28%
since Aug 31

AMOM · Weight increase · 2d

weight 2.230% → 2.290% (+0.060 pp)·stock up 14.4% in the 30 days before

Aug 24·entry $346.00·now $370.69Drifting

+7.14%
since Aug 24

AMOM · Accumulation · 5d

weight 1.950% → 2.240% (+0.290 pp)·stock up 11.7% in the 30 days before

Aug 18·entry $350.05·now $370.69Drifting

+5.90%
since Aug 18

AMOM · Weight increase · 2d

weight 1.950% → 2.100% (+0.150 pp)·stock up 9.5% in the 30 days before

Aug 11·entry $323.92·now $370.69Chased

+14.44%
since Aug 11

AMOM · Weight decrease · 3d

weight 2.880% → 1.950% (-0.930 pp)·stock up 6.1% in the 30 days before

Aug 7·entry $298.31·now $370.69

+24.26%
since Aug 7

AMOM · Weight decrease · 2d

weight 2.880% → 1.990% (-0.890 pp)·stock up 7.1% in the 30 days before

Aug 6·entry $302.99·now $370.69

+22.34%
since Aug 6

AMOM · Weight increase · 3d

stock up 13.1% in the 30 days before

Jul 29·entry $301.32·now $370.69Chased

+23.02%
since Jul 29

AMOM · Weight increase · 2d

stock up 15.2% in the 30 days before

Jul 28·entry $298.88·now $370.69Chased

+24.03%
since Jul 28

AMOM · Weight decrease · 3d

stock up 25.3% in the 30 days before

Jul 23·entry $305.26·now $370.69

+21.43%
since Jul 23

AMOM · Weight decrease · 2d

stock up 27.5% in the 30 days before

Jul 22·entry $310.92·now $370.69

+19.22%
since Jul 22

AMOM · Weight increase · 3d

stock up 30.7% in the 30 days before

Jul 20·entry $313.31·now $370.69Chased

+18.31%
since Jul 20

AMOM · Weight increase · 2d

stock up 26.8% in the 30 days before

Jul 17·entry $309.65·now $370.69Chased

+19.71%
since Jul 17
AIEQno longer held14 signals

AIEQ · Exit · 1d

weight 2.340% → 0 (exited)·stock up 17.7% in the 30 days before

Sep 1·entry $361.99·now $370.69

+2.40%
since Sep 1

AIEQ · Weight decrease · 2d

weight 2.320% → 2.270% (-0.050 pp)·stock up 16.4% in the 30 days before

Aug 26·entry $348.03·now $370.69

+6.51%
since Aug 26

AIEQ · Weight decrease · 2d

weight 2.330% → 2.280% (-0.050 pp)·stock up 14.3% in the 30 days before

Aug 21·entry $348.86·now $370.69

+6.26%
since Aug 21

AIEQ · Accumulation · 5d

weight 2.080% → 2.330% (+0.250 pp)·stock up 10.0% in the 30 days before

Aug 19·entry $346.26·now $370.69Drifting

+7.06%
since Aug 19

AIEQ · Accumulation · 5d

weight 1.990% → 2.280% (+0.290 pp)·stock up 11.7% in the 30 days before

Aug 18·entry $350.05·now $370.69Drifting

+5.90%
since Aug 18

AIEQ · Weight increase · 4d

weight 1.990% → 2.230% (+0.240 pp)·stock up 13.8% in the 30 days before

Aug 15·entry $347.19·now $370.69Drifting

+6.77%
since Aug 15

AIEQ · Weight increase · 3d

weight 1.990% → 2.180% (+0.190 pp)·stock up 17.2% in the 30 days before

Aug 13·entry $342.92·now $370.69Drifting

+8.10%
since Aug 13

AIEQ · Weight increase · 2d

weight 1.990% → 2.140% (+0.150 pp)·stock up 9.5% in the 30 days before

Aug 12·entry $330.21·now $370.69Chased

+12.26%
since Aug 12

AIEQ · Weight decrease · 3d

weight 2.100% → 1.990% (-0.110 pp)·stock up 6.1% in the 30 days before

Aug 8·entry $314.95·now $370.69

+17.70%
since Aug 8

AIEQ · Weight decrease · 2d

weight 2.100% → 2.030% (-0.070 pp)·stock up 6.1% in the 30 days before

Aug 7·entry $298.31·now $370.69

+24.26%
since Aug 7

AIEQ · Weight increase · 3d

stock up 16.1% in the 30 days before

Aug 2·entry $307.54·now $370.69Chased

+20.53%
since Aug 2

AIEQ · Weight increase · 2d

stock up 16.1% in the 30 days before

Jul 31·entry $312.90·now $370.69Chased

+18.47%
since Jul 31

AIEQ · Accumulation · 5d

stock up 33.2% in the 30 days before

Jul 21·entry $314.80·now $370.69Chased

+17.75%
since Jul 21

AIEQ · Weight increase · 2d

stock up 26.8% in the 30 days before

Jul 19·entry $313.31·now $370.69Chased

+18.31%
since Jul 19

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.

Buffett-style framework

Too hard to callas of Aug 9

The AI ETFs show mixed activity with recent trends indicating some weight decreases, but still maintain positions in Valero, suggesting ongoing participation. This contrasts with a Buffett-style framework's 'Too Hard' verdict, which would suggest avoiding investment due to the unpredictability of the refining industry's long-term cash flows. The AI's approach likely emphasizes shorter-term trends or quantitative signals rather than long-term fundamental predictability.

  • Circle of CompetenceThe refining industry's unit economics are heavily influenced by volatile crack spreads and commodity prices, making long-term cash flow projections genuinely unpredictable beyond a few years.
  • Economic MoatAn assessment of an enduring economic moat cannot be reliably made for a business whose long-term earning power is deemed unpredictable.
  • ManagementA judgment on management's capital allocation and integrity is not applicable when the underlying business falls outside the circle of competence.
  • Financial HealthKey financial health metrics requiring multi-year consistency cannot be adequately assessed for a business with inherently unpredictable unit economics.
  • Margin of SafetyA defensible margin of safety cannot be established without the ability to reliably project future cash flows for intrinsic value estimation.

Valero Energy Corp, operating in the volatile oil refining industry, falls outside the circle of competence for a Buffett-style investor due to the inherent unpredictability of its unit economics over a ten-year horizon. This makes it impossible to reliably project future cash flows or determine an intrinsic value within the framework. Consequently, the company is deemed 'Too Hard' to analyze further, irrespective of current financial metrics or price.

Educational interpretation generated by AI applying frameworks Warren Buffett documented in his shareholder letters and other public writings. Not a statement by Mr. Buffett or Berkshire Hathaway, and not investment advice.