SEIC · Sei Investments Co · Options Chain

Track SEIC — free

$106.93 +0.16 (+0.15%) At close · Sep 11

S&P 400 member Russell 1000 member Rebalance outlook locked

Market Cap

$12.81B

120.02M

Options Chain

Underlying $106.93 · at close Sep 11, 2026 Options Calculator

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Positioning

Sep 18, 2026 · 6 days to expiry · 34 contracts · mixed daily-bar sessions · Jan 20, 2026–Sep 11, 2026; 11 unknown

Put / call OI

0.10

Call-heavy positioning

Open interest

792

as of Sep 10, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$80.00

$26.93 below spot

ATM implied vol

24.4%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

125

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 6d Oct 16 34d Dec 18 97d Mar 19 188d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
2	2	—	—	$59.80	$64.10	$42.09		$0.40	$0.00	$2.15	—	—	2	20
Call · $45 In the money Daily-bar session Jun 3, 2026 Quote as of 2026-09-11 19:57:15.852 UTC Last $42.09 Breakeven $87.09 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $45 Daily-bar session Mar 6, 2026 Quote as of 2026-09-11 19:04:20.069 UTC Last $0.40 Breakeven $44.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 OI effective date Sep 10, 2026 Model this put
—	2	—	—	$54.90	$59.10	$54.76		$0.70	$0.00	$2.15	—	—	12	10
Call · $50 In the money Daily-bar session Aug 6, 2026 Quote as of 2026-09-11 19:57:15.849 UTC Last $54.76 Breakeven $104.76 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 Daily-bar session Mar 23, 2026 Quote as of 2026-09-11 19:04:20.069 UTC Last $0.70 Breakeven $49.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 10 OI effective date Sep 10, 2026 Model this put
—	—	—	—	$51.00	$53.50	—		—	$0.00	$2.15	—	—	—	—
Call · $55 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.609 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 Daily-bar session Unknown Quote as of 2026-09-11 19:56:43.176 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$44.90	$49.10	—		—	$0.00	$2.15	—	—	—	—
Call · $60 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.849 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $60 Daily-bar session Unknown Quote as of 2026-09-11 19:59:32.384 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
1	2	—	—	$40.20	$43.60	$22.45		$1.75	$0.00	$2.15	—	—	1	1
Call · $65 In the money Daily-bar session Jan 20, 2026 Quote as of 2026-09-11 19:57:15.621 UTC Last $22.45 Breakeven $87.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $65 Daily-bar session Feb 12, 2026 Quote as of 2026-09-11 19:59:03.598 UTC Last $1.75 Breakeven $63.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this put
—	—	—	—	$34.90	$39.10	—		$0.25	$0.00	$2.15	—	—	1	2
Call · $70 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.851 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $70 Daily-bar session Jun 16, 2026 Quote as of 2026-09-11 19:59:38.338 UTC Last $0.25 Breakeven $69.75 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this put
1	1	—	—	$29.90	$33.60	$8.50		$0.70	$0.00	$2.15	—	—	1	15
Call · $75 In the money Daily-bar session Mar 31, 2026 Quote as of 2026-09-11 19:57:15.849 UTC Last $8.50 Breakeven $83.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this call Put · $75 Daily-bar session Jun 16, 2026 Quote as of 2026-09-11 19:59:00.540 UTC Last $0.70 Breakeven $74.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 15 OI effective date Sep 10, 2026 Model this put
5	5	—	—	$25.30	$28.20	$7.80		$0.19	$0.00	$2.15	—	—	15	19
Call · $80 In the money Daily-bar session Feb 27, 2026 Quote as of 2026-09-11 19:56:51.327 UTC Last $7.80 Breakeven $87.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 OI effective date Sep 10, 2026 Model this call Put · $80 Daily-bar session Jul 28, 2026 Quote as of 2026-09-11 19:59:03.599 UTC Last $0.19 Breakeven $79.81 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 OI effective date Sep 10, 2026 Model this put
13	1	—	—	$20.30	$24.10	$21.20		$3.53	$0.00	$2.15	—	—	3	—
Call · $85 In the money Daily-bar session Aug 11, 2026 Quote as of 2026-09-11 19:57:15.844 UTC Last $21.20 Breakeven $106.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 10, 2026 Model this call Put · $85 Daily-bar session May 15, 2026 Quote as of 2026-09-11 19:59:31.925 UTC Last $3.53 Breakeven $81.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
11	1	100%	0.921	$15.90	$19.10	$19.62		—	$0.00	$2.15	—	—	—	—
Call · $90 In the money Daily-bar session Sep 2, 2026 Quote as of 2026-09-11 19:55:56.750 UTC Last $19.62 Breakeven $109.62 Implied vol 100% Delta 0.921 ≈92% ITM Gamma 0.011 Theta -0.176 Vega 0.02 Open interest 11 OI effective date Sep 10, 2026 Model this call Put · $90 Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.843 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
2	1	37.7%	0.994	$10.60	$13.40	$10.20		—	$0.00	$2.15	—	—	—	—
Call · $95 In the money Daily-bar session Aug 12, 2026 Quote as of 2026-09-11 19:57:15.846 UTC Last $10.20 Breakeven $105.20 Implied vol 37.7% Delta 0.994 ≈99% ITM Gamma 0.004 Theta -0.018 Vega 0.003 Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $95 Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.843 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
11	1	45.1%	0.884	$5.60	$9.10	$8.75		$0.50	$0.00	$2.15	—	—	1	1
Call · $100 In the money Daily-bar session Aug 20, 2026 Quote as of 2026-09-11 19:57:16.031 UTC Last $8.75 Breakeven $108.75 Implied vol 45.1% Delta 0.884 ≈88% ITM Gamma 0.032 Theta -0.11 Vega 0.027 Open interest 11 OI effective date Sep 10, 2026 Model this call Put · $100 Daily-bar session Aug 20, 2026 Quote as of 2026-09-11 19:59:31.695 UTC Last $0.50 Breakeven $99.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 10, 2026 Model this put
625	1	24.4%	0.732	$0.50	$4.60	$2.90		$1.37	$0.00	$1.40	—	—	2	3
Call · $105 In the money Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:57:37.770 UTC Last $2.90 Breakeven $107.90 Implied vol 24.4% Delta 0.732 ≈73% ITM Gamma 0.099 Theta -0.1 Vega 0.045 Open interest 625 OI effective date Sep 10, 2026 Model this call Put · $105 Daily-bar session Aug 20, 2026 Quote as of 2026-09-11 19:59:24.251 UTC Last $1.37 Breakeven $103.63 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 10, 2026 Model this put
Underlying $106.93
13	1	—	—	$0.00	$2.55	$1.39		$3.20	$1.30	$4.30	—	—	1	4
Call · $110 Daily-bar session Sep 10, 2026 Quote as of 2026-09-11 19:57:15.845 UTC Last $1.39 Breakeven $111.39 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 10, 2026 Model this call Put · $110 In the money Daily-bar session Sep 11, 2026 Quote as of 2026-09-11 19:57:50.751 UTC Last $3.20 Breakeven $106.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 10, 2026 Model this put
31	2	—	—	$0.00	$1.00	$0.13		—	$6.90	$9.40	-0.931	37.3%	—	—
Call · $115 Daily-bar session Sep 9, 2026 Quote as of 2026-09-11 19:57:15.592 UTC Last $0.13 Breakeven $115.13 Implied vol — Delta — Gamma — Theta — Vega — Open interest 31 OI effective date Sep 10, 2026 Model this call Put · $115 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:55:07.282 UTC Last — Breakeven — Implied vol 37.3% Delta -0.931 ≈93% ITM Gamma 0.026 Theta -0.045 Vega 0.018 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.15	—		—	$11.70	$14.50	-0.961	49.8%	—	—
Call · $120 Daily-bar session Unknown Quote as of 2026-09-11 19:59:31.796 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $120 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:57:15.844 UTC Last — Breakeven — Implied vol 49.8% Delta -0.961 ≈96% ITM Gamma 0.012 Theta -0.036 Vega 0.012 Open interest — OI effective date — Model this put
2	2	—	—	$0.00	$2.15	$0.08		—	$16.70	$19.60	-0.958	68.7%	—	—
Call · $125 Daily-bar session Sep 3, 2026 Quote as of 2026-09-11 19:59:31.882 UTC Last $0.08 Breakeven $125.08 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 10, 2026 Model this call Put · $125 In the money Daily-bar session Unknown Quote as of 2026-09-11 19:55:13.679 UTC Last — Breakeven — Implied vol 68.7% Delta -0.958 ≈96% ITM Gamma 0.01 Theta -0.058 Vega 0.012 Open interest — OI effective date — Model this put

About this data

Each contract's last price, day range and volume belong to the daily-bar session shown in its details; unknown means the source omitted that timestamp. Open interest has its own effective date shown separately; implied volatility and greeks are model values computed when fetched. This chain has mixed daily-bar sessions · Jan 20, 2026–Sep 11, 2026; 11 unknown. Positioning totals are shown only when every returned open-interest value has the same known effective date. Bid and ask are real-time consolidated OPRA readings.

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) 187 filings 186 filers Visit website Investor relations