SEIC · Sei Investments Co

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$102.41 +0.89 (+0.88%)

Market Cap

$12.21B

120.02M

Options Chain

15-min delayed Underlying $102.41 · today Options Calculator

Positioning

Aug 21, 2026 · 24 days to expiry · 38 contracts

Put / call OI

0.03

Call-heavy positioning

Open interest

945

contracts outstanding

Volume

117

traded today

Max pain

$95.00

$7.41 below spot

ATM implied vol

26.4%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

125

130

135

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 24d Sep 18 52d Dec 18 143d Mar 19 234d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $45 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $45 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	110.6%	0.996	—		—	—	—	—	0
Call · $50 In the money Last — Breakeven — Implied vol 110.6% Delta 0.996 ≈100% ITM Gamma 0 Theta -0.008 Vega 0.004 Open interest 0 Model this call Put · $50 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $55 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $55 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	74.6%	0.998	—		—	—	—	—	0
Call · $60 In the money Last — Breakeven — Implied vol 74.6% Delta 0.998 ≈100% ITM Gamma 0 Theta -0.005 Vega 0.002 Open interest 0 Model this call Put · $60 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.035	104.3%	—	0
Call · $65 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $65 Last — Breakeven — Implied vol 104.3% Delta -0.035 ≈3% ITM Gamma 0.003 Theta -0.043 Vega 0.021 Open interest 0 Model this put
0	—	—	—	—		$0.20	-0.04	89.8%	1	1
Call · $70 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $70 Last $0.20 Breakeven $69.80 Implied vol 89.8% Delta -0.04 ≈4% ITM Gamma 0.004 Theta -0.042 Vega 0.022 Open interest 1 Model this put
0	—	—	—	—		$0.55	-0.047	76.2%	1	4
Call · $75 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $75 Last $0.55 Breakeven $74.45 Implied vol 76.2% Delta -0.047 ≈5% ITM Gamma 0.005 Theta -0.04 Vega 0.023 Open interest 4 Model this put
0	—	—	—	—		$0.90	-0.056	63.6%	1	2
Call · $80 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $80 Last $0.90 Breakeven $79.10 Implied vol 63.6% Delta -0.056 ≈6% ITM Gamma 0.007 Theta -0.039 Vega 0.023 Open interest 2 Model this put
0	—	—	—	—		$0.40	-0.068	50.3%	10	12
Call · $85 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $85 Last $0.40 Breakeven $84.60 Implied vol 50.3% Delta -0.068 ≈7% ITM Gamma 0.01 Theta -0.035 Vega 0.042 Open interest 12 Model this put
0	—	—	—	—		$0.70	-0.088	37.5%	5	5
Call · $90 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $90 Last $0.70 Breakeven $89.30 Implied vol 37.5% Delta -0.088 ≈9% ITM Gamma 0.016 Theta -0.032 Vega 0.043 Open interest 5 Model this put
6	4	26.9%	0.86	$4.00		$1.25	-0.231	41.2%	1	2
Call · $95 In the money Last $4.00 Breakeven $99.00 Implied vol 26.9% Delta 0.86 ≈86% ITM Gamma 0.032 Theta -0.038 Vega 0.066 Open interest 6 Model this call Put · $95 Last $1.25 Breakeven $93.75 Implied vol 41.2% Delta -0.231 ≈23% ITM Gamma 0.028 Theta -0.067 Vega 0.087 Open interest 2 Model this put
36	5	26.9%	0.633	$3.16		—	-0.365	25.9%	—	0
Call · $100 In the money Last $3.16 Breakeven $103.16 Implied vol 26.9% Delta 0.633 ≈63% ITM Gamma 0.054 Theta -0.06 Vega 0.102 Open interest 36 Model this call Put · $100 Last — Breakeven — Implied vol 25.9% Delta -0.365 ≈36% ITM Gamma 0.056 Theta -0.051 Vega 0.102 Open interest 0 Model this put
Underlying $102.41
673	86	27.6%	0.361	$1.30		—	-0.629	30.2%	—	0
Call · $105 Last $1.30 Breakeven $106.30 Implied vol 27.6% Delta 0.361 ≈36% ITM Gamma 0.052 Theta -0.059 Vega 0.093 Open interest 673 Model this call Put · $105 In the money Last — Breakeven — Implied vol 30.2% Delta -0.629 ≈63% ITM Gamma 0.049 Theta -0.059 Vega 0.093 Open interest 0 Model this put
204	3	23.5%	0.116	$0.50		—	-0.802	32.9%	—	0
Call · $110 Last $0.50 Breakeven $110.50 Implied vol 23.5% Delta 0.116 ≈12% ITM Gamma 0.032 Theta -0.026 Vega 0.05 Open interest 204 Model this call Put · $110 In the money Last — Breakeven — Implied vol 32.9% Delta -0.802 ≈80% ITM Gamma 0.033 Theta -0.045 Vega 0.073 Open interest 0 Model this put
0	—	34.7%	0.1	—		—	-0.945	29.9%	—	0
Call · $115 Last — Breakeven — Implied vol 34.7% Delta 0.1 ≈10% ITM Gamma 0.019 Theta -0.034 Vega 0.051 Open interest 0 Model this call Put · $115 In the money Last — Breakeven — Implied vol 29.9% Delta -0.945 ≈95% ITM Gamma 0.018 Theta -0.014 Vega 0.026 Open interest 0 Model this put
0	—	43.9%	0.083	—		—	-0.955	37.9%	—	0
Call · $120 Last — Breakeven — Implied vol 43.9% Delta 0.083 ≈8% ITM Gamma 0.013 Theta -0.037 Vega 0.051 Open interest 0 Model this call Put · $120 In the money Last — Breakeven — Implied vol 37.9% Delta -0.955 ≈96% ITM Gamma 0.012 Theta -0.015 Vega 0.026 Open interest 0 Model this put
0	—	—	—	—		—	-0.989	38.7%	—	0
Call · $125 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $125 In the money Last — Breakeven — Implied vol 38.7% Delta -0.989 ≈99% ITM Gamma 0.006 Theta -0.004 Vega 0.008 Open interest 0 Model this put
0	—	—	—	—		—	-0.991	45.1%	—	0
Call · $130 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $130 In the money Last — Breakeven — Implied vol 45.1% Delta -0.991 ≈99% ITM Gamma 0.004 Theta -0.005 Vega 0.008 Open interest 0 Model this put
0	—	—	—	—		—	-0.915	75.9%	—	0
Call · $135 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $135 In the money Last — Breakeven — Implied vol 75.9% Delta -0.915 ≈91% ITM Gamma 0.008 Theta -0.059 Vega 0.051 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 350894 CUSIP 784117103 13F (30d) 156 filings 136 filers Visit website Investor relations