IWB · iShares MSCI All Country Asia ex Japan ETF

Track IWB — free

$421.15 -1.22 (-0.29%) At close · Aug 28

Rebalance outlook locked

Options Chain

Underlying $421.15 · at close Aug 28, 2026 Options Calculator

Positioning

Sep 18, 2026 · 20 days to expiry · 56 contracts · mixed snapshot sessions · Jul 17, 2026–Aug 28, 2026; 43 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 20d Oct 16 48d Nov 20 83d Dec 18 111d Feb 19 174d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	42.5%	0.996	—		—	-0.02	55.4%	—	0
Call · $325 In the money Snapshot session Unknown Last — Breakeven — Implied vol 42.5% Delta 0.996 ≈100% ITM Gamma 0 Theta -0.032 Vega 0.007 Open interest 0 Model this call Put · $325 Snapshot session Unknown Last — Breakeven — Implied vol 55.4% Delta -0.02 ≈2% ITM Gamma 0.001 Theta -0.063 Vega 0.044 Open interest 0 Model this put
0	—	0.1%	1	—		—	-0.021	52.6%	—	0
Call · $330 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 1 ≈100% ITM Gamma 0 Theta -0.023 Vega 0 Open interest 0 Model this call Put · $330 Snapshot session Unknown Last — Breakeven — Implied vol 52.6% Delta -0.021 ≈2% ITM Gamma 0.001 Theta -0.063 Vega 0.044 Open interest 0 Model this put
0	—	46.5%	0.984	—		—	-0.022	49.9%	—	0
Call · $335 In the money Snapshot session Unknown Last — Breakeven — Implied vol 46.5% Delta 0.984 ≈98% ITM Gamma 0.001 Theta -0.066 Vega 0.044 Open interest 0 Model this call Put · $335 Snapshot session Unknown Last — Breakeven — Implied vol 49.9% Delta -0.022 ≈2% ITM Gamma 0.001 Theta -0.062 Vega 0.044 Open interest 0 Model this put
0	—	41.4%	0.989	—		—	-0.023	47.3%	—	0
Call · $340 In the money Snapshot session Unknown Last — Breakeven — Implied vol 41.4% Delta 0.989 ≈99% ITM Gamma 0.001 Theta -0.052 Vega 0.044 Open interest 0 Model this call Put · $340 Snapshot session Unknown Last — Breakeven — Implied vol 47.3% Delta -0.023 ≈2% ITM Gamma 0.001 Theta -0.062 Vega 0.045 Open interest 0 Model this put
0	—	39.7%	0.986	—		$1.10	-0.024	44.7%	1	1
Call · $345 In the money Snapshot session Unknown Last — Breakeven — Implied vol 39.7% Delta 0.986 ≈99% ITM Gamma 0.001 Theta -0.057 Vega 0.045 Open interest 0 Model this call Put · $345 Snapshot session Jul 17, 2026 Last $1.10 Breakeven $343.90 Implied vol 44.7% Delta -0.024 ≈2% ITM Gamma 0.001 Theta -0.061 Vega 0.045 Open interest 1 Model this put
0	—	38.1%	0.983	—		$1.29	-0.025	42.1%	1	1
Call · $350 In the money Snapshot session Unknown Last — Breakeven — Implied vol 38.1% Delta 0.983 ≈98% ITM Gamma 0.001 Theta -0.062 Vega 0.045 Open interest 0 Model this call Put · $350 Snapshot session Jul 21, 2026 Last $1.29 Breakeven $348.71 Implied vol 42.1% Delta -0.025 ≈3% ITM Gamma 0.001 Theta -0.061 Vega 0.045 Open interest 1 Model this put
0	—	35.3%	0.982	—		—	-0.027	39.4%	—	0
Call · $355 In the money Snapshot session Unknown Last — Breakeven — Implied vol 35.3% Delta 0.982 ≈98% ITM Gamma 0.001 Theta -0.061 Vega 0.045 Open interest 0 Model this call Put · $355 Snapshot session Unknown Last — Breakeven — Implied vol 39.4% Delta -0.027 ≈3% ITM Gamma 0.002 Theta -0.06 Vega 0.091 Open interest 0 Model this put
0	—	32.6%	0.982	—		—	-0.029	36.6%	—	0
Call · $360 In the money Snapshot session Unknown Last — Breakeven — Implied vol 32.6% Delta 0.982 ≈98% ITM Gamma 0.001 Theta -0.06 Vega 0.045 Open interest 0 Model this call Put · $360 Snapshot session Unknown Last — Breakeven — Implied vol 36.6% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.058 Vega 0.091 Open interest 0 Model this put
0	—	29.9%	0.981	—		$2.45	-0.053	39.2%	1	1
Call · $365 In the money Snapshot session Unknown Last — Breakeven — Implied vol 29.9% Delta 0.981 ≈98% ITM Gamma 0.002 Theta -0.058 Vega 0.045 Open interest 0 Model this call Put · $365 Snapshot session Jul 17, 2026 Last $2.45 Breakeven $362.55 Implied vol 39.2% Delta -0.053 ≈5% ITM Gamma 0.003 Theta -0.102 Vega 0.093 Open interest 1 Model this put
0	—	25.1%	0.988	—		—	-0.033	31%	—	0
Call · $370 In the money Snapshot session Unknown Last — Breakeven — Implied vol 25.1% Delta 0.988 ≈99% ITM Gamma 0.001 Theta -0.044 Vega 0.045 Open interest 0 Model this call Put · $370 Snapshot session Unknown Last — Breakeven — Implied vol 31% Delta -0.033 ≈3% ITM Gamma 0.002 Theta -0.055 Vega 0.092 Open interest 0 Model this put
0	—	28.4%	0.962	—		$0.67	-0.036	28.2%	1	1
Call · $375 In the money Snapshot session Unknown Last — Breakeven — Implied vol 28.4% Delta 0.962 ≈96% ITM Gamma 0.003 Theta -0.082 Vega 0.093 Open interest 0 Model this call Put · $375 Snapshot session Aug 7, 2026 Last $0.67 Breakeven $374.33 Implied vol 28.2% Delta -0.036 ≈4% ITM Gamma 0.003 Theta -0.053 Vega 0.093 Open interest 1 Model this put
0	—	26.7%	0.953	—		—	-0.039	25.5%	—	0
Call · $380 In the money Snapshot session Unknown Last — Breakeven — Implied vol 26.7% Delta 0.953 ≈95% ITM Gamma 0.004 Theta -0.089 Vega 0.093 Open interest 0 Model this call Put · $380 Snapshot session Unknown Last — Breakeven — Implied vol 25.5% Delta -0.039 ≈4% ITM Gamma 0.003 Theta -0.052 Vega 0.093 Open interest 0 Model this put
0	—	23.4%	0.953	—		—	-0.044	22.9%	—	0
Call · $385 In the money Snapshot session Unknown Last — Breakeven — Implied vol 23.4% Delta 0.953 ≈95% ITM Gamma 0.004 Theta -0.082 Vega 0.093 Open interest 0 Model this call Put · $385 Snapshot session Unknown Last — Breakeven — Implied vol 22.9% Delta -0.044 ≈4% ITM Gamma 0.004 Theta -0.05 Vega 0.093 Open interest 0 Model this put
0	—	22.2%	0.938	—		—	-0.049	20.3%	—	0
Call · $390 In the money Snapshot session Unknown Last — Breakeven — Implied vol 22.2% Delta 0.938 ≈94% ITM Gamma 0.006 Theta -0.093 Vega 0.163 Open interest 0 Model this call Put · $390 Snapshot session Unknown Last — Breakeven — Implied vol 20.3% Delta -0.049 ≈5% ITM Gamma 0.005 Theta -0.048 Vega 0.093 Open interest 0 Model this put
0	—	20%	0.92	—		—	-0.063	18.6%	—	0
Call · $395 In the money Snapshot session Unknown Last — Breakeven — Implied vol 20% Delta 0.92 ≈92% ITM Gamma 0.007 Theta -0.099 Vega 0.163 Open interest 0 Model this call Put · $395 Snapshot session Unknown Last — Breakeven — Implied vol 18.6% Delta -0.063 ≈6% ITM Gamma 0.007 Theta -0.055 Vega 0.162 Open interest 0 Model this put
0	—	17.9%	0.898	—		$1.35	-0.09	16.9%	1	1
Call · $400 In the money Snapshot session Unknown Last — Breakeven — Implied vol 17.9% Delta 0.898 ≈90% ITM Gamma 0.01 Theta -0.104 Vega 0.164 Open interest 0 Model this call Put · $400 Snapshot session Aug 17, 2026 Last $1.35 Breakeven $398.65 Implied vol 16.9% Delta -0.09 ≈9% ITM Gamma 0.01 Theta -0.064 Vega 0.164 Open interest 1 Model this put
0	—	16.1%	0.86	—		—	-0.122	15.1%	—	0
Call · $405 In the money Snapshot session Unknown Last — Breakeven — Implied vol 16.1% Delta 0.86 ≈86% ITM Gamma 0.014 Theta -0.113 Vega 0.249 Open interest 0 Model this call Put · $405 Snapshot session Unknown Last — Breakeven — Implied vol 15.1% Delta -0.122 ≈12% ITM Gamma 0.014 Theta -0.072 Vega 0.248 Open interest 0 Model this put
0	—	13.8%	0.811	—		—	-0.182	13.3%	—	0
Call · $410 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.8% Delta 0.811 ≈81% ITM Gamma 0.02 Theta -0.116 Vega 0.251 Open interest 0 Model this call Put · $410 Snapshot session Unknown Last — Breakeven — Implied vol 13.3% Delta -0.182 ≈18% ITM Gamma 0.02 Theta -0.081 Vega 0.251 Open interest 0 Model this put
0	—	13.1%	0.704	—		—	-0.285	12.1%	—	0
Call · $415 In the money Snapshot session Unknown Last — Breakeven — Implied vol 13.1% Delta 0.704 ≈70% ITM Gamma 0.027 Theta -0.133 Vega 0.335 Open interest 0 Model this call Put · $415 Snapshot session Unknown Last — Breakeven — Implied vol 12.1% Delta -0.285 ≈29% ITM Gamma 0.028 Theta -0.092 Vega 0.335 Open interest 0 Model this put
1	1	12.1%	0.564	$11.90		—	-0.438	11.4%	—	0
Call · $420 In the money Snapshot session Aug 5, 2026 Last $11.90 Breakeven $431.90 Implied vol 12.1% Delta 0.564 ≈56% ITM Gamma 0.033 Theta -0.134 Vega 0.393 Open interest 1 Model this call Put · $420 Snapshot session Unknown Last — Breakeven — Implied vol 11.4% Delta -0.438 ≈44% ITM Gamma 0.035 Theta -0.099 Vega 0.392 Open interest 0 Model this put
Underlying $421.15
2	1	11.2%	0.391	$3.63		$6.00	-0.619	11.3%	1	1
Call · $425 Snapshot session Aug 20, 2026 Last $3.63 Breakeven $428.63 Implied vol 11.2% Delta 0.391 ≈39% ITM Gamma 0.035 Theta -0.119 Vega 0.405 Open interest 2 Model this call Put · $425 In the money Snapshot session Aug 14, 2026 Last $6.00 Breakeven $419.00 Implied vol 11.3% Delta -0.619 ≈62% ITM Gamma 0.036 Theta -0.091 Vega 0.393 Open interest 1 Model this put
10	10	10.3%	0.219	$4.11		$12.00	-0.793	10.7%	1	1
Call · $430 Snapshot session Aug 12, 2026 Last $4.11 Breakeven $434.11 Implied vol 10.3% Delta 0.219 ≈22% ITM Gamma 0.029 Theta -0.082 Vega 0.282 Open interest 10 Model this call Put · $430 In the money Snapshot session Aug 4, 2026 Last $12.00 Breakeven $418.00 Implied vol 10.7% Delta -0.793 ≈79% ITM Gamma 0.03 Theta -0.058 Vega 0.267 Open interest 1 Model this put
1	1	10.6%	0.111	$0.65		$15.30	-0.958	9.5%	1	1
Call · $435 Snapshot session Aug 28, 2026 Last $0.65 Breakeven $435.65 Implied vol 10.6% Delta 0.111 ≈11% ITM Gamma 0.018 Theta -0.052 Vega 0.194 Open interest 1 Model this call Put · $435 In the money Snapshot session Aug 4, 2026 Last $15.30 Breakeven $419.70 Implied vol 9.5% Delta -0.958 ≈96% ITM Gamma 0.019 Theta -0.011 Vega 0.086 Open interest 1 Model this put
0	—	12.8%	0.081	—		$18.80	—	—	1	1
Call · $440 Snapshot session Unknown Last — Breakeven — Implied vol 12.8% Delta 0.081 ≈8% ITM Gamma 0.012 Theta -0.05 Vega 0.194 Open interest 0 Model this call Put · $440 In the money Snapshot session Aug 4, 2026 Last $18.80 Breakeven $421.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	14.9%	0.065	—		—	—	—	—	0
Call · $445 Snapshot session Unknown Last — Breakeven — Implied vol 14.9% Delta 0.065 ≈7% ITM Gamma 0.009 Theta -0.048 Vega 0.112 Open interest 0 Model this call Put · $445 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	17.1%	0.058	—		—	—	—	—	0
Call · $450 Snapshot session Unknown Last — Breakeven — Implied vol 17.1% Delta 0.058 ≈6% ITM Gamma 0.007 Theta -0.05 Vega 0.112 Open interest 0 Model this call Put · $450 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	19.4%	0.052	—		—	-0.978	18.6%	—	0
Call · $455 Snapshot session Unknown Last — Breakeven — Implied vol 19.4% Delta 0.052 ≈5% ITM Gamma 0.005 Theta -0.051 Vega 0.112 Open interest 0 Model this call Put · $455 In the money Snapshot session Unknown Last — Breakeven — Implied vol 18.6% Delta -0.978 ≈98% ITM Gamma 0.005 Theta -0.015 Vega 0.055 Open interest 0 Model this put
0	—	23%	0.058	—		—	-0.98	20.8%	—	0
Call · $460 Snapshot session Unknown Last — Breakeven — Implied vol 23% Delta 0.058 ≈6% ITM Gamma 0.005 Theta -0.067 Vega 0.112 Open interest 0 Model this call Put · $460 In the money Snapshot session Unknown Last — Breakeven — Implied vol 20.8% Delta -0.98 ≈98% ITM Gamma 0.004 Theta -0.016 Vega 0.053 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 17, 2026–Aug 28, 2026; 43 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1100663 CUSIP 464288182 13F (30d) 156 filings 152 filers