Sonora Investment Management Group, LLC reported VALERO ENERGY CORP (VLO) in 16 quarterly 13F filings from 2024 Q1 through 2025 Q3. Peak portfolio weight reached 2.09% in 2024 Q2. The latest visible filing shows VLO at 1.94% of the fund.
This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.
This page is designed to answer the real investor question behind a 13F filing: how meaningful was Sonora Investment Management Group, LLC's position in VALERO ENERGY CORP, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.
VLO was reported at 1.94% of portfolio in the most recent visible filing.
Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.
Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.
Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.
As of 2026 Q2 — sorted by position size
These are the practical questions this page is built to answer before you even open the full history table.
Sonora Investment Management Group, LLC reported VLO across 7 quarterly 13F filings, from 2024 Q1 through 2025 Q3.
The largest reported portfolio weight for VLO was 2.09% in 2024 Q2.
The most recent filing on this page is 2025 Q3, when Sonora Investment Management Group, LLC reported 161,033 shares, equal to 1.94% of portfolio, with an estimated market value of $27.4M.
The chart compares Sonora Investment Management Group, LLC's quarterly VLO portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.
Based on 13F filing dates vs. subsequent VLO price moves, Sonora Investment Management Group, LLC correctly timed 6 out of 13 reported position changes (46%). The annualised alpha on VLO relative to SPY over the holding period was +8.8%.