IUSB · iShares Core Universal USD Bond ETF ETF

Alerts for IUSB

$45.25 +0.02 (+0.03%) At close · Sep 4

Options Chain

Underlying $45.25 · at close Sep 4, 2026 Options Calculator

Positioning

Sep 18, 2026 · 12 days to expiry · 38 contracts · daily-bar sessions unknown

Put / call OI

—

open-interest date unavailable

Open interest

—

open-interest date unavailable

Volume

—

daily-bar sessions unknown

ATM implied vol

4.8%

market's expected move

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
—	—	47.2%	0.992	$8.20	$8.40	—		—	$0.00	$0.10	—	—	—	—
Call · $37 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:49.099 UTC Last — Breakeven — Implied vol 47.2% Delta 0.992 ≈99% ITM Gamma 0.006 Theta -0.007 Vega 0.002 Open interest — OI effective date — Model this call Put · $37 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.436 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	41%	0.992	$7.20	$7.40	—		—	$0.00	$0.10	—	—	—	—
Call · $38 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:31.473 UTC Last — Breakeven — Implied vol 41% Delta 0.992 ≈99% ITM Gamma 0.007 Theta -0.007 Vega 0.002 Open interest — OI effective date — Model this call Put · $38 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.989 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	35%	0.992	$6.20	$6.40	—		—	$0.00	$0.10	—	—	—	—
Call · $39 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:51.137 UTC Last — Breakeven — Implied vol 35% Delta 0.992 ≈99% ITM Gamma 0.008 Theta -0.007 Vega 0.002 Open interest — OI effective date — Model this call Put · $39 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.450 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	29.1%	0.991	$5.20	$5.40	—		—	$0.00	$0.10	—	—	—	—
Call · $40 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:51.137 UTC Last — Breakeven — Implied vol 29.1% Delta 0.991 ≈99% ITM Gamma 0.01 Theta -0.006 Vega 0.002 Open interest — OI effective date — Model this call Put · $40 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.446 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	23.4%	0.991	$4.20	$4.40	—		—	$0.00	$0.10	—	—	—	—
Call · $41 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:51.137 UTC Last — Breakeven — Implied vol 23.4% Delta 0.991 ≈99% ITM Gamma 0.013 Theta -0.006 Vega 0.002 Open interest — OI effective date — Model this call Put · $41 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.439 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17.8%	0.991	$3.20	$3.40	—		—	$0.00	$0.10	—	—	—	—
Call · $42 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.728 UTC Last — Breakeven — Implied vol 17.8% Delta 0.991 ≈99% ITM Gamma 0.017 Theta -0.006 Vega 0.002 Open interest — OI effective date — Model this call Put · $42 Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.917 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	17.4%	0.953	$2.25	$2.40	—		—	$0.00	$0.10	—	—	—	—
Call · $43 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:58:46.209 UTC Last — Breakeven — Implied vol 17.4% Delta 0.953 ≈95% ITM Gamma 0.07 Theta -0.01 Vega 0.008 Open interest — OI effective date — Model this call Put · $43 Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.917 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	10.9%	0.931	$1.25	$1.40	—		—	$0.00	$0.10	—	—	—	—
Call · $44 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:59.985 UTC Last — Breakeven — Implied vol 10.9% Delta 0.931 ≈93% ITM Gamma 0.148 Theta -0.009 Vega 0.011 Open interest — OI effective date — Model this call Put · $44 Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.916 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
—	—	4.8%	0.777	$0.30	$0.40	—		—	$0.00	$0.10	—	—	—	—
Call · $45 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:49.506 UTC Last — Breakeven — Implied vol 4.8% Delta 0.777 ≈78% ITM Gamma 0.754 Theta -0.008 Vega 0.025 Open interest — OI effective date — Model this call Put · $45 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.269 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this put
Underlying $45.25
—	—	—	—	$0.00	$0.10	—		—	$0.65	$0.85	-0.852	8.1%	—	—
Call · $46 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.438 UTC Last — Breakeven — 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 19:59:52.645 UTC Last — Breakeven — Implied vol 8.1% Delta -0.852 ≈85% ITM Gamma 0.35 Theta -0.002 Vega 0.019 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$1.65	$1.85	-0.909	15.1%	—	—
Call · $47 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.397 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 19:59:55.022 UTC Last — Breakeven — Implied vol 15.1% Delta -0.909 ≈91% ITM Gamma 0.132 Theta -0.004 Vega 0.013 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$2.65	$2.85	-0.931	21.3%	—	—
Call · $48 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.498 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $48 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:01.918 UTC Last — Breakeven — Implied vol 21.3% Delta -0.931 ≈93% ITM Gamma 0.076 Theta -0.005 Vega 0.011 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$3.60	$3.90	-0.942	27.1%	—	—
Call · $49 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.599 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $49 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.796 UTC Last — Breakeven — Implied vol 27.1% Delta -0.942 ≈94% ITM Gamma 0.052 Theta -0.006 Vega 0.01 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$4.60	$4.90	-0.95	32.6%	—	—
Call · $50 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.441 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $50 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.971 UTC Last — Breakeven — Implied vol 32.6% Delta -0.95 ≈95% ITM Gamma 0.039 Theta -0.007 Vega 0.009 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$5.60	$5.90	-0.955	37.8%	—	—
Call · $51 Daily-bar session Unknown Quote as of 2026-09-04 19:57:01.448 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $51 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.167 UTC Last — Breakeven — Implied vol 37.8% Delta -0.955 ≈95% ITM Gamma 0.031 Theta -0.007 Vega 0.008 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$6.60	$6.90	-0.959	42.9%	—	—
Call · $52 Daily-bar session Unknown Quote as of 2026-09-04 19:59:32.942 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $52 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.283 UTC Last — Breakeven — Implied vol 42.9% Delta -0.959 ≈96% ITM Gamma 0.025 Theta -0.008 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$7.60	$7.90	-0.962	47.8%	—	—
Call · $53 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.055 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $53 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.467 UTC Last — Breakeven — Implied vol 47.8% Delta -0.962 ≈96% ITM Gamma 0.021 Theta -0.009 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$8.60	$8.90	-0.964	52.5%	—	—
Call · $54 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.174 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $54 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.597 UTC Last — Breakeven — Implied vol 52.5% Delta -0.964 ≈96% ITM Gamma 0.018 Theta -0.009 Vega 0.007 Open interest — OI effective date — Model this put
—	—	—	—	$0.00	$0.10	—		—	$9.60	$9.90	-0.966	57.1%	—	—
Call · $55 Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.273 UTC Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest — OI effective date — Model this call Put · $55 In the money Daily-bar session Unknown Quote as of 2026-09-04 19:59:33.765 UTC Last — Breakeven — Implied vol 57.1% Delta -0.966 ≈97% ITM Gamma 0.016 Theta -0.01 Vega 0.006 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 daily-bar sessions 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.