Sei Investments (SEIC) Shares Outstanding (Diluted) (2009 - 2026)
Sei Investments (SEIC) recorded Weighted Average Shares Outstanding (Diluted) of 122.01 million in Q3 2026, down 3.4% from 126.33 million a year earlier and down 1.1% from the prior quarter.
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Analysis
Sei Investments (SEIC) Shares Outstanding (Diluted) (2009 - 2026) Analysis & Trends
For FY2025, Sei Investments reported Weighted Average Shares Outstanding (Diluted) of 127.08 million, down 3.5% from FY2024.
- Annual Weighted Average Shares Outstanding (Diluted) has declined for 14 straight years, with a five-year compound annual growth rate of -3.1% (FY2020 to FY2025).
- Across earlier years, Weighted Average Shares Outstanding (Diluted) came in at 131.73 million in FY2024 (-1.5%), 133.73 million in FY2023 (-2.7%), 137.42 million in FY2022 (-4.1%) and 143.31 million in FY2021 (-3.8%).
- The Q3 2026 figure is the lowest quarterly Weighted Average Shares Outstanding (Diluted) in data going back to Q4 2011.
- On a year-over-year basis, Weighted Average Shares Outstanding (Diluted) has declined for 33 consecutive quarters, with an average decline of 3.1% over the last eight quarters.
- Over the past five years, the year-over-year decline in Weighted Average Shares Outstanding (Diluted) ranged from 1.4% (Q2 2024) to 4.4% (Q2 2022).
- Per Business Quant, the preceding three quarters came in at 123.33 million (Q2 2026), 124.49 million (Q1 2026) and 127.08 million (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Cme | 113.65 Bn | 101.99 Bn | 359.20 Mn | 358.64 Mn |
| 2 | Bank of New York Mellon | 103.23 Bn | 37.32 Bn | - | 686.91 Mn |
| 3 | Intercontinental Exchange | 99.60 Bn | 93.42 Bn | 1.22 Bn | 563.00 Mn |
| 4 | Robinhood Markets | 70.15 Bn | 49.76 Bn | - | 911.00 Mn |
| 5 | Nasdaq | 60.57 Bn | 58.01 Bn | 1.48 Bn | 563.31 Mn |
| 6 | State Street | 47.32 Bn | 43.94 Bn | - | 279.29 Mn |
| 7 | Cboe Global Markets | 39.19 Bn | 29.68 Bn | 712.20 Mn | 104.70 Mn |
| 8 | Interactive Brokers | 37.06 Bn | 20.72 Bn | - | 453.92 Mn |
| 9 | Northern Trust | 32.28 Bn | 32.28 Bn | - | 183.17 Mn |
| 10 | Sei Investments | 12.95 Bn | 11.72 Bn | - | 122.01 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 122.01 Mn |
| Jun 30, 2026 | 123.33 Mn |
| Mar 31, 2026 | 124.49 Mn |
| Dec 31, 2025 | 127.08 Mn |
| Sep 30, 2025 | 126.33 Mn |
| Jun 30, 2025 | 127.28 Mn |
| Mar 31, 2025 | 129.45 Mn |
| Dec 31, 2024 | 131.73 Mn |
| Sep 30, 2024 | 130.67 Mn |
| Jun 30, 2024 | 132.07 Mn |
| Mar 31, 2024 | 132.75 Mn |
| Dec 31, 2023 | 133.73 Mn |
| Sep 30, 2023 | 133.50 Mn |
| Jun 30, 2023 | 133.94 Mn |
| Mar 31, 2023 | 135.31 Mn |
| Dec 31, 2022 | 137.42 Mn |
| Sep 30, 2022 | 136.35 Mn |
| Jun 30, 2022 | 137.82 Mn |
| Mar 31, 2022 | 139.71 Mn |
| Dec 31, 2021 | 143.31 Mn |
API Access
Sei Investments 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=SEIC&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "SEIC", "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=SEIC&period=max&api_key=YOUR_API_KEY");
const data = await res.json();