SEI Investments (SEIC) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
SEIC
Archetype
Balanced
Moderate daily swings — neither calm nor dramatic.
Win rate
45.4%
5163 green · 4923 red · 1296 flat · 11382 sessions
Current streak
1 green
As of May 22, 2026
Max win / lose streak
12 / 9 days
Win streak return: +5.74% · Lose: 11.12%
Median / σ daily
+0.000% · 2.256%
Avg green +1.73% · avg red 1.62%
Extreme days (>3%)
12.6%
770 up · 662 down
History from Mar 26, 1981 through May 22, 2026 · 11382 trading days with returns.
Trailing year — daily returns (calendar)
May 27, 2025 – May 22, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Oct 28, 2008 | +17.87% |
| Sep 30, 2008 | +17.17% |
| Aug 20, 1986 | +15.88% |
| Apr 5, 2001 | +15.39% |
| Oct 13, 2008 | +15.13% |
| Apr 18, 2001 | +13.90% |
| Aug 18, 1994 | +13.27% |
| Jul 20, 2000 | +12.99% |
| Apr 9, 1999 | +12.94% |
| Oct 8, 1997 | +12.83% |
| Oct 15, 1998 | +12.66% |
| Feb 5, 1991 | +12.50% |
| Sep 24, 2001 | +12.38% |
| May 30, 2000 | +12.20% |
| Mar 13, 2020 | +12.20% |
| Mar 24, 2020 | +11.98% |
| Apr 25, 1996 | +11.97% |
| Oct 19, 2005 | +11.46% |
| Jul 3, 1984 | +11.29% |
| Nov 21, 2002 | +11.28% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| Oct 26, 1987 | 20.37% | 4 |
| Jan 2, 2001 | 16.74% | 1436 |
| Dec 1, 2008 | 14.60% | 5 |
| Jul 27, 2000 | 13.70% | 6 |
| Sep 29, 2008 | 13.34% | 1 |
| Oct 9, 2008 | 13.16% | 7 |
| Jun 30, 2000 | 12.80% | 3 |
| Oct 3, 2002 | 12.71% | 6 |
| Jan 27, 2016 | 12.70% | 53 |
| Oct 4, 2000 | 12.50% | 10 |
| Mar 16, 2020 | 12.23% | 31 |
| Apr 14, 1987 | 11.92% | 2 |
| Mar 21, 2001 | 11.79% | 4 |
| Nov 19, 2008 | 11.71% | 6 |
| Oct 19, 1983 | 11.48% | 898 |
| Oct 22, 1991 | 11.46% | 47 |
| Apr 22, 2021 | 11.00% | 9 |
| Jul 27, 2016 | 10.51% | 111 |
| Sep 17, 2008 | 10.38% | 5 |
| Apr 25, 1984 | 10.34% | 7 |
Frequently asked questions
What is the daily win rate for SEI Investments (SEIC)?
Historically, SEI Investments (SEIC) closed green on 45.4% of trading days (5163 green, 4923 red, 1296 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for SEI Investments (SEIC)?
As of 2026-05-22, SEI Investments (SEIC) is on a 1-day winning streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for SEI Investments (SEIC)?
We label SEI Investments (SEIC) as "balanced" based on the sample standard deviation of daily returns: Moderate daily swings — neither calm nor dramatic.
What were the best and worst single trading days for SEI Investments (SEIC)?
Largest single-day gain: +17.87%. Largest single-day loss: 20.37%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for SEI Investments (SEIC)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 12.6% of trading days for SEI Investments (SEIC) were extreme (770 up, 662 down).
Data & methodology
How are green, red, and flat days defined?
We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.
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