ITOT · iShares Core S&P Total U.S. Stock Market ETF ETF

Alerts for ITOT

$168.64 -0.53 (-0.31%) At close · Sep 4

Options Chain

Underlying $168.64 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 13 days to expiry · 42 contracts · mixed daily-bar sessions · Jul 20, 2026–Sep 4, 2026; 15 unknown

Put / call OI

0.21

Call-heavy positioning

Open interest

506

as of Sep 3, 2026

Volume

—

dated and unknown daily-bar sessions

Max pain

$166.00

$2.64 below spot

ATM implied vol

11.8%

market's expected move

Open interest by strike

Calls Puts

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 13d Oct 16 41d Jan 15 132d Apr 16 223d

Calls								Puts
OI	Vol	IV	Δ	Bid	Ask	Last	Strike	Last	Bid	Ask	Δ	IV	Vol	OI
—	—	22.7%	0.979	$12.50	$15.30	—		$0.12	$0.00	$0.30	—	—	1	1
Call · $155 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:16.420 UTC Last — Breakeven — Implied vol 22.7% Delta 0.979 ≈98% ITM Gamma 0.007 Theta -0.029 Vega 0.016 Open interest — OI effective date — Model this call Put · $155 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.12 Breakeven $154.88 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	21.1%	0.978	$11.50	$14.30	—		$0.40	$0.00	$0.25	—	—	2	6
Call · $156 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:17.494 UTC Last — Breakeven — Implied vol 21.1% Delta 0.978 ≈98% ITM Gamma 0.008 Theta -0.029 Vega 0.017 Open interest — OI effective date — Model this call Put · $156 Daily-bar session Aug 19, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.40 Breakeven $155.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 OI effective date Sep 3, 2026 Model this put
—	—	21.9%	0.963	$10.60	$13.30	—		—	$0.00	$0.35	—	—	—	—
Call · $157 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:51.537 UTC Last — Breakeven — Implied vol 21.9% Delta 0.963 ≈96% ITM Gamma 0.012 Theta -0.037 Vega 0.026 Open interest — OI effective date — Model this call Put · $157 Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	21.9%	0.948	$9.60	$12.40	—		$0.35	$0.00	$0.15	—	—	4	4
Call · $158 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol 21.9% Delta 0.948 ≈95% ITM Gamma 0.015 Theta -0.043 Vega 0.034 Open interest — OI effective date — Model this call Put · $158 Daily-bar session Aug 26, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.35 Breakeven $157.65 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
—	—	20.2%	0.945	$8.60	$11.40	—		$3.10	$0.00	$0.35	—	—	1	1
Call · $159 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:57:51.998 UTC Last — Breakeven — Implied vol 20.2% Delta 0.945 ≈94% ITM Gamma 0.017 Theta -0.043 Vega 0.036 Open interest — OI effective date — Model this call Put · $159 Daily-bar session Jul 23, 2026 Quote as of 2026-09-04 19:59:54.548 UTC Last $3.10 Breakeven $155.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
4	2	19.7%	0.929	$7.70	$10.40	$9.10		$0.66	$0.00	$0.85	—	—	2	17
Call · $160 In the money Daily-bar session Aug 21, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $9.10 Breakeven $169.10 Implied vol 19.7% Delta 0.929 ≈93% ITM Gamma 0.022 Theta -0.048 Vega 0.043 Open interest 4 OI effective date Sep 3, 2026 Model this call Put · $160 Daily-bar session Aug 14, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.66 Breakeven $159.34 Implied vol — Delta — Gamma — Theta — Vega — Open interest 17 OI effective date Sep 3, 2026 Model this put
4	1	16.8%	0.936	$6.70	$9.30	$8.75		$0.85	$0.00	$0.50	—	—	20	20
Call · $161 In the money Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:58:30.656 UTC Last $8.75 Breakeven $169.75 Implied vol 16.8% Delta 0.936 ≈94% ITM Gamma 0.024 Theta -0.041 Vega 0.04 Open interest 4 OI effective date Sep 3, 2026 Model this call Put · $161 Daily-bar session Aug 18, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.85 Breakeven $160.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 OI effective date Sep 3, 2026 Model this put
—	—	17.1%	0.904	$5.70	$8.50	—		$3.19	$0.00	$0.40	—	—	1	1
Call · $162 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:12.444 UTC Last — Breakeven — Implied vol 17.1% Delta 0.904 ≈90% ITM Gamma 0.031 Theta -0.05 Vega 0.054 Open interest — OI effective date — Model this call Put · $162 Daily-bar session Jul 20, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $3.19 Breakeven $158.81 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 OI effective date Sep 3, 2026 Model this put
—	—	14.3%	0.908	$4.80	$7.30	—		$0.61	$0.25	$0.60	-0.144	17.9%	2	13
Call · $163 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol 14.3% Delta 0.908 ≈91% ITM Gamma 0.037 Theta -0.044 Vega 0.053 Open interest — OI effective date — Model this call Put · $163 Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:59:54.521 UTC Last $0.61 Breakeven $162.39 Implied vol 17.9% Delta -0.144 ≈14% ITM Gamma 0.04 Theta -0.047 Vega 0.072 Open interest 13 OI effective date Sep 3, 2026 Model this put
—	—	14%	0.869	$3.80	$6.50	—		$1.49	$0.00	$0.80	—	—	2	2
Call · $164 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol 14% Delta 0.869 ≈87% ITM Gamma 0.048 Theta -0.051 Vega 0.068 Open interest — OI effective date — Model this call Put · $164 Daily-bar session Aug 20, 2026 Quote as of 2026-09-04 19:59:34.110 UTC Last $1.49 Breakeven $162.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 OI effective date Sep 3, 2026 Model this put
12	11	13.8%	0.816	$2.90	$5.70	$5.30		$1.25	$0.10	$1.00	-0.203	15%	1	2
Call · $165 In the money Daily-bar session Aug 18, 2026 Quote as of 2026-09-04 19:57:26.574 UTC Last $5.30 Breakeven $170.30 Implied vol 13.8% Delta 0.816 ≈82% ITM Gamma 0.061 Theta -0.058 Vega 0.085 Open interest 12 OI effective date Sep 3, 2026 Model this call Put · $165 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:59:29.377 UTC Last $1.25 Breakeven $163.75 Implied vol 15% Delta -0.203 ≈20% ITM Gamma 0.059 Theta -0.048 Vega 0.09 Open interest 2 OI effective date Sep 3, 2026 Model this put
—	—	13.3%	0.756	$2.05	$4.90	—		$1.85	$0.00	$1.70	—	—	1	4
Call · $166 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol 13.3% Delta 0.756 ≈76% ITM Gamma 0.074 Theta -0.064 Vega 0.1 Open interest — OI effective date — Model this call Put · $166 Daily-bar session Sep 1, 2026 Quote as of 2026-09-04 19:59:32.470 UTC Last $1.85 Breakeven $164.15 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 OI effective date Sep 3, 2026 Model this put
2	2	12%	0.691	$1.25	$4.00	$2.95		$1.82	$0.00	$2.05	—	—	1	13
Call · $167 In the money Daily-bar session Aug 20, 2026 Quote as of 2026-09-04 19:59:57.495 UTC Last $2.95 Breakeven $169.95 Implied vol 12% Delta 0.691 ≈69% ITM Gamma 0.092 Theta -0.063 Vega 0.112 Open interest 2 OI effective date Sep 3, 2026 Model this call Put · $167 Daily-bar session Aug 25, 2026 Quote as of 2026-09-04 19:59:32.460 UTC Last $1.82 Breakeven $165.18 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 OI effective date Sep 3, 2026 Model this put
40	2	11.5%	0.597	$0.65	$3.20	$1.50		$1.70	$0.05	$2.40	-0.412	12.8%	1	2
Call · $168 In the money Daily-bar session Aug 24, 2026 Quote as of 2026-09-04 19:59:59.953 UTC Last $1.50 Breakeven $169.50 Implied vol 11.5% Delta 0.597 ≈60% ITM Gamma 0.106 Theta -0.064 Vega 0.123 Open interest 40 OI effective date Sep 3, 2026 Model this call Put · $168 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:37.320 UTC Last $1.70 Breakeven $166.30 Implied vol 12.8% Delta -0.412 ≈41% ITM Gamma 0.096 Theta -0.054 Vega 0.124 Open interest 2 OI effective date Sep 3, 2026 Model this put
Underlying $168.64
4	1	11%	0.488	$0.15	$2.50	$2.06		$2.28	$0.40	$2.95	-0.509	12.6%	1	1
Call · $169 Daily-bar session Aug 28, 2026 Quote as of 2026-09-04 19:59:35.116 UTC Last $2.06 Breakeven $171.06 Implied vol 11% Delta 0.488 ≈49% ITM Gamma 0.114 Theta -0.062 Vega 0.127 Open interest 4 OI effective date Sep 3, 2026 Model this call Put · $169 In the money Daily-bar session Aug 12, 2026 Quote as of 2026-09-04 19:59:54.581 UTC Last $2.28 Breakeven $166.72 Implied vol 12.6% Delta -0.509 ≈51% ITM Gamma 0.099 Theta -0.053 Vega 0.127 Open interest 1 OI effective date Sep 3, 2026 Model this put
73	1	11.4%	0.381	$0.05	$1.85	$0.69		$2.45	$0.95	$3.70	-0.601	13.3%	2	2
Call · $170 Daily-bar session Sep 3, 2026 Quote as of 2026-09-04 19:59:54.490 UTC Last $0.69 Breakeven $170.69 Implied vol 11.4% Delta 0.381 ≈38% ITM Gamma 0.105 Theta -0.059 Vega 0.121 Open interest 73 OI effective date Sep 3, 2026 Model this call Put · $170 In the money Daily-bar session Aug 14, 2026 Quote as of 2026-09-04 19:59:57.454 UTC Last $2.45 Breakeven $167.55 Implied vol 13.3% Delta -0.601 ≈60% ITM Gamma 0.091 Theta -0.053 Vega 0.123 Open interest 2 OI effective date Sep 3, 2026 Model this put
61	4	—	—	$0.00	$1.35	$0.30		—	$1.65	$4.40	-0.682	13.7%	—	—
Call · $171 Daily-bar session Sep 2, 2026 Quote as of 2026-09-04 19:59:52.774 UTC Last $0.30 Breakeven $171.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 61 OI effective date Sep 3, 2026 Model this call Put · $171 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:22.193 UTC Last — Breakeven — Implied vol 13.7% Delta -0.682 ≈68% ITM Gamma 0.082 Theta -0.048 Vega 0.114 Open interest — OI effective date — Model this put
51	10	10.3%	0.173	$0.05	$0.55	$0.30		—	$2.50	$5.20	-0.743	14.7%	—	—
Call · $172 Daily-bar session Sep 4, 2026 Quote as of 2026-09-04 19:59:58.100 UTC Last $0.30 Breakeven $172.30 Implied vol 10.3% Delta 0.173 ≈17% ITM Gamma 0.078 Theta -0.035 Vega 0.081 Open interest 51 OI effective date Sep 3, 2026 Model this call Put · $172 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:54.487 UTC Last — Breakeven — Implied vol 14.7% Delta -0.743 ≈74% ITM Gamma 0.069 Theta -0.045 Vega 0.103 Open interest — OI effective date — Model this put
7	1	13.8%	0.18	$0.10	$0.75	$0.73		—	$3.30	$6.10	-0.793	15.4%	—	—
Call · $173 Daily-bar session Aug 18, 2026 Quote as of 2026-09-04 19:59:54.519 UTC Last $0.73 Breakeven $173.73 Implied vol 13.8% Delta 0.18 ≈18% ITM Gamma 0.06 Theta -0.047 Vega 0.084 Open interest 7 OI effective date Sep 3, 2026 Model this call Put · $173 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.014 UTC Last — Breakeven — Implied vol 15.4% Delta -0.793 ≈79% ITM Gamma 0.058 Theta -0.04 Vega 0.091 Open interest — OI effective date — Model this put
151	1	15.2%	0.151	$0.05	$0.70	$0.30		—	$4.20	$7.10	-0.821	17%	—	—
Call · $174 Daily-bar session Aug 20, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.30 Breakeven $174.30 Implied vol 15.2% Delta 0.151 ≈15% ITM Gamma 0.049 Theta -0.046 Vega 0.075 Open interest 151 OI effective date Sep 3, 2026 Model this call Put · $174 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:03.011 UTC Last — Breakeven — Implied vol 17% Delta -0.821 ≈82% ITM Gamma 0.048 Theta -0.04 Vega 0.083 Open interest — OI effective date — Model this put
8	1	—	—	$0.00	$0.30	$0.05		—	$5.10	$7.70	-0.887	15.5%	—	—
Call · $175 Daily-bar session Aug 31, 2026 Quote as of 2026-09-04 19:59:54.487 UTC Last $0.05 Breakeven $175.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 OI effective date Sep 3, 2026 Model this call Put · $175 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:55:01.293 UTC Last — Breakeven — Implied vol 15.5% Delta -0.887 ≈89% ITM Gamma 0.039 Theta -0.021 Vega 0.061 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 20, 2026–Sep 4, 2026; 15 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.