KDEF · PLUS Korea Defense Industry Index ETF ETF

Alerts for KDEF

$42.65 +0.80 (+1.91%) At close · Sep 4

Options Chain

Underlying $42.65 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 42 contracts · mixed daily-bar sessions · Jul 31, 2026–Sep 1, 2026; 33 unknown

Put / call OI

0.08

Call-heavy positioning

Open interest

104

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$38.00

$4.65 below spot

ATM implied vol

59.7%

market's expected move

Open interest by strike

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 12d Oct 16 40d Nov 20 75d Feb 19 166d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	—	—	$11.60	$14.90	—		—	$0.00	$1.90	—	—	—	—
Call · $29 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.475 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $29 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.265 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$10.60	$13.90	—		—	$0.00	$1.90	—	—	—	—
Call · $30 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.464 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $30 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.256 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$9.60	$12.90	—		—	$0.00	$1.90	—	—	—	—
Call · $31 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.374 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $31 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.163 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$8.60	$11.90	—		—	$0.00	$1.90	—	—	—	—
Call · $32 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.362 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $32 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.154 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$7.60	$10.90	—		—	$0.00	$1.90	—	—	—	—
Call · $33 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.270 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $33 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.063 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$6.50	$9.90	—		—	$0.00	$1.90	—	—	—	—
Call · $34 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.258 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $34 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.052 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$5.70	$8.90	—		—	$0.00	$1.95	—	—	—	—
Call · $35 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.160 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $35 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.959 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$4.70	$8.00	—		—	$0.00	$1.95	—	—	—	—
Call · $36 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.065 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $36 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.865 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
7	7	—	—	$3.80	$7.00	$7.80		$3.50	$0.00	$2.05	—	—	1	1
Call · $37 In the money Daily-bar session Aug 27, 2026 Quote as of 2026-09-04 19:59:31.966 UTC Last $7.80 Breakeven $44.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 OI effective date Sep 3, 2026 Model this call Put · $37 Daily-bar session Jul 31, 2026 Quote as of 2026-09-04 19:59:31.855 UTC Last $3.50 Breakeven $33.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$2.85	$6.10	—		$0.65	$0.00	$2.15	—	—	3	3
Call · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.881 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $38 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:31.761 UTC Last $0.65 Breakeven $37.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 OI effective date Sep 3, 2026 Model this put
—	—	—	—	$2.00	$5.30	—		—	$0.00	$2.20	—	—	—	—
Call · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.781 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.665 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	30.1%	0.89	$1.25	$4.40	—		$0.75	$0.00	$2.45	—	—	1	4
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:04.862 UTC Last — Breakeven — Implied vol 30.1% Delta 0.89 ≈89% ITM Gamma 0.081 Theta -0.022 Vega 0.015 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:31.653 UTC Last $0.75 Breakeven $39.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	36.3%	0.742	$0.50	$3.80	—		$1.00	$0.00	$2.65	—	—	1	—
Call · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.565 UTC Last — Breakeven — Implied vol 36.3% Delta 0.742 ≈74% ITM Gamma 0.115 Theta -0.041 Vega 0.025 Open interest — OI effective date — Model this call Put · $41 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:31.556 UTC Last $1.00 Breakeven $40.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$3.20	—		—	$0.00	$3.20	—	—	—	—
Call · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.461 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $42 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.457 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $42.65
—	—	—	—	$0.00	$2.75	—		—	$0.30	$3.70	-0.504	59.7%	—	—
Call · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.453 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.456 UTC Last — Breakeven — Implied vol 59.7% Delta -0.504 ≈50% ITM Gamma 0.086 Theta -0.074 Vega 0.031 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.40	—		—	$0.70	$4.20	-0.599	55.1%	—	—
Call · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.466 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.560 UTC Last — Breakeven — Implied vol 55.1% Delta -0.599 ≈60% ITM Gamma 0.091 Theta -0.066 Vega 0.03 Open interest — OI effective date — Model this put
6	4	—	—	$0.00	$2.20	$1.20		—	$1.50	$4.90	-0.673	57.7%	—	—
Call · $45 Daily-bar session Aug 26, 2026 Quote as of 2026-09-04 19:59:31.564 UTC Last $1.20 Breakeven $46.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 3, 2026 Model this call Put · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.663 UTC Last — Breakeven — Implied vol 57.7% Delta -0.673 ≈67% ITM Gamma 0.081 Theta -0.064 Vega 0.028 Open interest — OI effective date — Model this put
—	3	—	—	$0.00	$2.15	$0.55		—	$2.35	$5.70	-0.732	60.9%	—	—
Call · $46 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:31.661 UTC Last $0.55 Breakeven $46.55 Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $46 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:38.500 UTC Last — Breakeven — Implied vol 60.9% Delta -0.732 ≈73% ITM Gamma 0.07 Theta -0.061 Vega 0.026 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$2.00	—		—	$3.30	$6.70	-0.76	68.8%	—	—
Call · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.759 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $47 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.863 UTC Last — Breakeven — Implied vol 68.8% Delta -0.76 ≈76% ITM Gamma 0.058 Theta -0.065 Vega 0.024 Open interest — OI effective date — Model this put
13	10	—	—	$0.00	$0.30	$0.35		—	$4.20	$7.60	-0.795	72.5%	—	—
Call · $48 Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:55:50.815 UTC Last $0.35 Breakeven $48.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 3, 2026 Model this call Put · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:31.962 UTC Last — Breakeven — Implied vol 72.5% Delta -0.795 ≈80% ITM Gamma 0.051 Theta -0.062 Vega 0.022 Open interest — OI effective date — Model this put
70	9	—	—	$0.00	$1.90	$0.20		—	$5.20	$8.50	-0.818	77.7%	—	—
Call · $49 Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:59:31.862 UTC Last $0.20 Breakeven $49.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 70 OI effective date Sep 3, 2026 Model this call Put · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.061 UTC Last — Breakeven — Implied vol 77.7% Delta -0.818 ≈82% ITM Gamma 0.044 Theta -0.062 Vega 0.021 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 · Jul 31, 2026–Sep 1, 2026; 33 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.