Phillips 66 (PSX) Shares Outstanding (Diluted) (2011 - 2026)
Phillips 66's Weighted Average Shares Outstanding (Diluted) came in at 398.95 million for Q3 2026, down 1.6% from 405.55 million a year earlier and down 0.9% from the prior quarter.
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Analysis
Phillips 66 (PSX) Shares Outstanding (Diluted) (2011 - 2026) Analysis & Trends
For FY2025, Phillips 66's Weighted Average Shares Outstanding (Diluted) was 408.05 million, down 3.3% from FY2024.
- Weighted Average Shares Outstanding (Diluted) has declined in each of the last three years, with a five-year compound annual growth rate of -1.5% (FY2020 to FY2025).
- Going back by year, Weighted Average Shares Outstanding (Diluted) was 421.89 million in FY2024 (-6.9%), 453.21 million in FY2023 (-4.3%), 473.73 million in FY2022 (+7.6%) and 440.36 million in FY2021 (+0.2%).
- The Q3 2026 figure represents the lowest quarterly Weighted Average Shares Outstanding (Diluted) in data going back to Q1 2011.
- Year-over-year, Weighted Average Shares Outstanding (Diluted) has declined for 14 consecutive quarters, with an average decline of 3.4% over the last eight quarters.
- The fastest year-over-year change in Weighted Average Shares Outstanding (Diluted) over five years came in Q2 2022 (growth of 10.1%), and the weakest in Q1 2024 (a decline of 7.5%).
- Business Quant data shows PSX's Weighted Average Shares Outstanding (Diluted) at 402.62 million (Q2 2026), 403.27 million (Q1 2026) and 408.05 million (Q4 2025) in the three quarters before Q3 2026.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | ExxonMobil Holdings | 688.07 Bn | 646.21 Bn | - | 4.42 Bn |
| 2 | Chevron | 421.08 Bn | 393.20 Bn | 33.45 Bn | 1.98 Bn |
| 3 | Shell | 295.54 Bn | 155.81 Bn | - | 2.97 Bn |
| 4 | TotalEnergies SE | 194.84 Bn | 65.92 Bn | 31,614.00 | 2.57 Bn |
| 5 | Eni Spa | 168.93 Bn | 108.56 Bn | - | 3.09 Bn |
| 6 | Conocophillips | 165.73 Bn | 138.44 Bn | 12.81 Bn | 1.21 Bn |
| 7 | Equinor Asa | 110.59 Bn | 23.44 Bn | 4.49 Bn | 2.60 Bn |
| 8 | Canadian Natural Resources | 102.76 Bn | 99.76 Bn | 8.84 Bn | 2.10 Bn |
| 9 | Phillips 66 | 98.51 Bn | 82.30 Bn | 10.69 Bn | 398.95 Mn |
| 10 | Suncor Energy | 84.36 Bn | 65.05 Bn | - | 1.22 Bn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 398.95 Mn |
| Jun 30, 2026 | 402.62 Mn |
| Mar 31, 2026 | 403.27 Mn |
| Dec 31, 2025 | 408.05 Mn |
| Sep 30, 2025 | 405.55 Mn |
| Jun 30, 2025 | 407.93 Mn |
| Mar 31, 2025 | 410.51 Mn |
| Dec 31, 2024 | 421.89 Mn |
| Sep 30, 2024 | 418.80 Mn |
| Jun 30, 2024 | 425.73 Mn |
| Mar 31, 2024 | 431.91 Mn |
| Dec 31, 2023 | 453.21 Mn |
| Sep 30, 2023 | 447.26 Mn |
| Jun 30, 2023 | 456.17 Mn |
| Mar 31, 2023 | 467.03 Mn |
| Dec 31, 2022 | 473.73 Mn |
| Sep 30, 2022 | 483.04 Mn |
| Jun 30, 2022 | 485.04 Mn |
| Mar 31, 2022 | 450.01 Mn |
| Dec 31, 2021 | 440.36 Mn |
API Access
Phillips 66 Shares Outstanding (Diluted) API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=PSX&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "PSX", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=PSX&period=max&api_key=YOUR_API_KEY");
const data = await res.json();