SEI Investments (SEIC) went public on March 26, 1990, when it opened at a split-adjusted price of $0.41.
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2025 | $80.36 | $82.18 | $79.69 | $81.56 | 3,586,736 |
November 2025 | $80.38 | $84.69 | $77.51 | $80.86 | 10,483,906 |
October 2025 | $84.50 | $86.14 | $78.34 | $80.61 | 16,912,160 |
September 2025 | $87.29 | $89.52 | $84.23 | $84.85 | 16,520,416 |
August 2025 | $86.83 | $90.97 | $85.55 | $88.28 | 12,472,179 |
July 2025 | $89.96 | $93.96 | $86.20 | $88.12 | 21,393,538 |
June 2025 | $84.25 | $90.52 | $82.43 | $89.86 | 20,206,617 |
May 2025 | $78.01 | $85.85 | $77.76 | $84.77 | 24,771,971 |
April 2025 | $77.06 | $78.58 | $64.29 | $77.84 | 17,992,846 |
March 2025 | $79.99 | $80.34 | $71.56 | $77.19 | 18,436,837 |
February 2025 | $84.30 | $86.42 | $78.36 | $79.59 | 10,974,319 |
January 2025 | $82.64 | $86.45 | $77.13 | $86.08 | 11,927,886 |
December 2024 | $82.06 | $86.25 | $79.70 | $82.01 | 15,153,580 |
November 2024 | $73.90 | $82.16 | $73.57 | $81.68 | 12,782,317 |
October 2024 | $68.61 | $76.07 | $67.77 | $73.90 | 16,147,823 |
September 2024 | $66.54 | $69.14 | $64.29 | $68.40 | 11,683,176 |
August 2024 | $67.06 | $67.60 | $61.66 | $66.85 | 8,978,549 |
July 2024 | $63.93 | $69.35 | $63.27 | $67.06 | 15,779,133 |
June 2024 | $66.42 | $66.55 | $62.93 | $63.95 | 12,315,646 |
May 2024 | $64.61 | $67.72 | $64.59 | $66.46 | 11,317,593 |
April 2024 | $70.48 | $70.48 | $63.94 | $64.73 | 11,737,548 |
March 2024 | $66.01 | $71.20 | $65.71 | $70.57 | 11,102,597 |
February 2024 | $63.75 | $66.58 | $62.95 | $66.01 | 9,844,294 |
January 2024 | $61.90 | $63.98 | $60.44 | $62.07 | 15,398,673 |
December 2023 | $57.25 | $63.29 | $56.86 | $62.38 | 11,445,898 |
