Phillips 66 (PSX) Shares Outstanding (Diluted) (2011 - 2026)
Phillips 66's Shares Outstanding (Diluted) came in at 402.62 million for Q2 2026, down 1.3% from 407.93 million a year earlier and down 0.2% from the prior quarter.
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Analysis
Phillips 66 (PSX) Shares Outstanding (Diluted) (2011 - 2026) Analysis & Trends
For FY2025, Phillips 66's Shares Outstanding (Diluted) was 408.05 million, down 3.3% from FY2024.
- 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, 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 Q2 2026 figure represents the lowest quarterly Shares Outstanding (Diluted) in data going back to Q1 2011.
- Year-over-year, Shares Outstanding (Diluted) has declined for 13 consecutive quarters, with an average decline of 4.0% over the last eight quarters.
- The fastest year-over-year change in 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 Shares Outstanding (Diluted) at 403.27 million (Q1 2026), 408.05 million (Q4 2025) and 405.55 million (Q3 2025) in the three quarters before Q2 2026.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | ExxonMobil Holdings | 746.42 Bn | 702.90 Bn | - | 4.42 Bn |
| 2 | Chevron | 442.96 Bn | 415.08 Bn | 33.45 Bn | 1.98 Bn |
| 3 | Shell | 313.69 Bn | 243.43 Bn | 30.13 Bn | 2.97 Bn |
| 4 | TotalEnergies SE | 200.00 Bn | 80.58 Bn | 61.77 Bn | 2.57 Bn |
| 5 | Conocophillips | 177.72 Bn | 150.43 Bn | 12.81 Bn | 1.21 Bn |
| 6 | Equinor Asa | 121.70 Bn | 36.16 Bn | - | 2.60 Bn |
| 7 | Phillips 66 | 117.59 Bn | 105.38 Bn | 8.38 Bn | 402.62 Mn |
| 8 | Canadian Natural Resources | 112.49 Bn | 109.50 Bn | 8.84 Bn | 2.10 Bn |
| 9 | Suncor Energy | 94.96 Bn | 80.71 Bn | - | 1.22 Bn |
| 10 | Eni Spa | 89.38 Bn | 33.94 Bn | - | 1.54 Bn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| 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 |
| Sep 30, 2021 | 440.37 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();