SDY · State Street SPDR Bloomberg International Treasury Bond ETF

Track SDY — free

$157.50 -0.01 (-0.01%) At close · Aug 28

Rebalance outlook locked

Options Chain

Underlying $157.50 · at close Aug 28, 2026 Options Calculator

Positioning

Sep 18, 2026 · 19 days to expiry · 46 contracts · mixed snapshot sessions · Jul 27, 2026–Aug 25, 2026; 29 unknown

Put / call OI

—

dated and unknown snapshot sessions

Open interest

—

dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Sep 18 19d Oct 16 47d Jan 15 138d Apr 16 229d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	0.1%	0.999	—		—	-0.07	36.1%	—	0
Call · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0.1% Delta 0.999 ≈100% ITM Gamma 0 Theta -0.004 Vega 0 Open interest 0 Model this call Put · $140 Snapshot session Unknown Last — Breakeven — Implied vol 36.1% Delta -0.07 ≈7% ITM Gamma 0.01 Theta -0.045 Vega 0.06 Open interest 0 Model this put
1	1	38.8%	0.873	$15.01		$0.10	-0.08	30.9%	2	2
Call · $143 In the money Snapshot session Aug 5, 2026 Last $15.01 Breakeven $158.01 Implied vol 38.8% Delta 0.873 ≈87% ITM Gamma 0.015 Theta -0.08 Vega 0.091 Open interest 1 Model this call Put · $143 Snapshot session Aug 24, 2026 Last $0.10 Breakeven $142.90 Implied vol 30.9% Delta -0.08 ≈8% ITM Gamma 0.013 Theta -0.042 Vega 0.06 Open interest 2 Model this put
0	—	37.2%	0.864	—		—	-0.081	28.7%	—	0
Call · $144 In the money Snapshot session Unknown Last — Breakeven — Implied vol 37.2% Delta 0.864 ≈86% ITM Gamma 0.016 Theta -0.08 Vega 0.091 Open interest 0 Model this call Put · $144 Snapshot session Unknown Last — Breakeven — Implied vol 28.7% Delta -0.081 ≈8% ITM Gamma 0.014 Theta -0.04 Vega 0.06 Open interest 0 Model this put
0	—	26.5%	0.918	—		—	-0.088	27.4%	—	0
Call · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol 26.5% Delta 0.918 ≈92% ITM Gamma 0.016 Theta -0.041 Vega 0.061 Open interest 0 Model this call Put · $145 Snapshot session Unknown Last — Breakeven — Implied vol 27.4% Delta -0.088 ≈9% ITM Gamma 0.016 Theta -0.041 Vega 0.061 Open interest 0 Model this put
0	—	23.9%	0.921	—		—	-0.093	25.7%	—	0
Call · $146 In the money Snapshot session Unknown Last — Breakeven — Implied vol 23.9% Delta 0.921 ≈92% ITM Gamma 0.017 Theta -0.036 Vega 0.061 Open interest 0 Model this call Put · $146 Snapshot session Unknown Last — Breakeven — Implied vol 25.7% Delta -0.093 ≈9% ITM Gamma 0.018 Theta -0.04 Vega 0.061 Open interest 0 Model this put
0	—	20.5%	0.935	—		—	-0.151	30.3%	—	0
Call · $147 In the money Snapshot session Unknown Last — Breakeven — Implied vol 20.5% Delta 0.935 ≈93% ITM Gamma 0.017 Theta -0.029 Vega 0.061 Open interest 0 Model this call Put · $147 Snapshot session Unknown Last — Breakeven — Implied vol 30.3% Delta -0.151 ≈15% ITM Gamma 0.021 Theta -0.066 Vega 0.092 Open interest 0 Model this put
0	—	22.9%	0.888	—		—	-0.106	22.3%	—	0
Call · $148 In the money Snapshot session Unknown Last — Breakeven — Implied vol 22.9% Delta 0.888 ≈89% ITM Gamma 0.023 Theta -0.045 Vega 0.061 Open interest 0 Model this call Put · $148 Snapshot session Unknown Last — Breakeven — Implied vol 22.3% Delta -0.106 ≈11% ITM Gamma 0.023 Theta -0.038 Vega 0.061 Open interest 0 Model this put
0	—	24.7%	0.844	—		—	-0.109	20.2%	—	0
Call · $149 In the money Snapshot session Unknown Last — Breakeven — Implied vol 24.7% Delta 0.844 ≈84% ITM Gamma 0.027 Theta -0.059 Vega 0.092 Open interest 0 Model this call Put · $149 Snapshot session Unknown Last — Breakeven — Implied vol 20.2% Delta -0.109 ≈11% ITM Gamma 0.026 Theta -0.035 Vega 0.061 Open interest 0 Model this put
0	—	23.2%	0.827	—		$0.46	-0.122	19%	1	1
Call · $150 In the money Snapshot session Unknown Last — Breakeven — Implied vol 23.2% Delta 0.827 ≈83% ITM Gamma 0.03 Theta -0.059 Vega 0.093 Open interest 0 Model this call Put · $150 Snapshot session Aug 17, 2026 Last $0.46 Breakeven $149.54 Implied vol 19% Delta -0.122 ≈12% ITM Gamma 0.03 Theta -0.036 Vega 0.062 Open interest 1 Model this put
3	2	21.8%	0.809	$7.55		—	-0.128	16.8%	—	0
Call · $151 In the money Snapshot session Jul 27, 2026 Last $7.55 Breakeven $158.55 Implied vol 21.8% Delta 0.809 ≈81% ITM Gamma 0.035 Theta -0.059 Vega 0.093 Open interest 3 Model this call Put · $151 Snapshot session Unknown Last — Breakeven — Implied vol 16.8% Delta -0.128 ≈13% ITM Gamma 0.035 Theta -0.033 Vega 0.092 Open interest 0 Model this put
0	—	20.3%	0.788	—		—	-0.146	15.2%	—	0
Call · $152 In the money Snapshot session Unknown Last — Breakeven — Implied vol 20.3% Delta 0.788 ≈79% ITM Gamma 0.04 Theta -0.06 Vega 0.093 Open interest 0 Model this call Put · $152 Snapshot session Unknown Last — Breakeven — Implied vol 15.2% Delta -0.146 ≈15% ITM Gamma 0.042 Theta -0.032 Vega 0.093 Open interest 0 Model this put
0	—	19.3%	0.754	—		$0.90	-0.172	13.8%	10	10
Call · $153 In the money Snapshot session Unknown Last — Breakeven — Implied vol 19.3% Delta 0.754 ≈75% ITM Gamma 0.045 Theta -0.061 Vega 0.123 Open interest 0 Model this call Put · $153 Snapshot session Aug 17, 2026 Last $0.90 Breakeven $152.10 Implied vol 13.8% Delta -0.172 ≈17% ITM Gamma 0.051 Theta -0.032 Vega 0.093 Open interest 10 Model this put
7	5	18.1%	0.716	$4.53		$0.85	-0.19	11.6%	20	20
Call · $154 In the money Snapshot session Jul 30, 2026 Last $4.53 Breakeven $158.53 Implied vol 18.1% Delta 0.716 ≈72% ITM Gamma 0.052 Theta -0.061 Vega 0.123 Open interest 7 Model this call Put · $154 Snapshot session Aug 13, 2026 Last $0.85 Breakeven $153.15 Implied vol 11.6% Delta -0.19 ≈19% ITM Gamma 0.065 Theta -0.029 Vega 0.093 Open interest 20 Model this put
0	—	17.4%	0.669	—		—	-0.254	11.1%	—	0
Call · $155 In the money Snapshot session Unknown Last — Breakeven — Implied vol 17.4% Delta 0.669 ≈67% ITM Gamma 0.058 Theta -0.063 Vega 0.124 Open interest 0 Model this call Put · $155 Snapshot session Unknown Last — Breakeven — Implied vol 11.1% Delta -0.254 ≈25% ITM Gamma 0.081 Theta -0.032 Vega 0.123 Open interest 0 Model this put
1	2	19.5%	0.598	$3.90		$0.80	-0.355	12.4%	41	39
Call · $156 In the money Snapshot session Aug 6, 2026 Last $3.90 Breakeven $159.90 Implied vol 19.5% Delta 0.598 ≈60% ITM Gamma 0.055 Theta -0.074 Vega 0.142 Open interest 1 Model this call Put · $156 Snapshot session Aug 24, 2026 Last $0.80 Breakeven $155.20 Implied vol 12.4% Delta -0.355 ≈36% ITM Gamma 0.084 Theta -0.042 Vega 0.142 Open interest 39 Model this put
7	2	17.8%	0.544	$2.96		$1.30	-0.443	12.4%	1	1
Call · $157 In the money Snapshot session Aug 17, 2026 Last $2.96 Breakeven $159.96 Implied vol 17.8% Delta 0.544 ≈54% ITM Gamma 0.062 Theta -0.07 Vega 0.143 Open interest 7 Model this call Put · $157 Snapshot session Aug 19, 2026 Last $1.30 Breakeven $155.70 Implied vol 12.4% Delta -0.443 ≈44% ITM Gamma 0.089 Theta -0.044 Vega 0.143 Open interest 1 Model this put
Underlying $157.50
21	10	15%	0.478	$2.43		—	-0.535	11.4%	—	0
Call · $158 Snapshot session Aug 17, 2026 Last $2.43 Breakeven $160.43 Implied vol 15% Delta 0.478 ≈48% ITM Gamma 0.074 Theta -0.059 Vega 0.144 Open interest 21 Model this call Put · $158 In the money Snapshot session Unknown Last — Breakeven — Implied vol 11.4% Delta -0.535 ≈54% ITM Gamma 0.098 Theta -0.04 Vega 0.144 Open interest 0 Model this put
23	8	14%	0.398	$1.93		—	-0.658	9.5%	—	0
Call · $159 Snapshot session Aug 17, 2026 Last $1.93 Breakeven $160.93 Implied vol 14% Delta 0.398 ≈40% ITM Gamma 0.077 Theta -0.053 Vega 0.145 Open interest 23 Model this call Put · $159 In the money Snapshot session Unknown Last — Breakeven — Implied vol 9.5% Delta -0.658 ≈66% ITM Gamma 0.111 Theta -0.03 Vega 0.128 Open interest 0 Model this put
22	5	14.4%	0.33	$1.43		—	-0.804	7.9%	—	0
Call · $160 Snapshot session Aug 24, 2026 Last $1.43 Breakeven $161.43 Implied vol 14.4% Delta 0.33 ≈33% ITM Gamma 0.07 Theta -0.051 Vega 0.128 Open interest 22 Model this call Put · $160 In the money Snapshot session Unknown Last — Breakeven — Implied vol 7.9% Delta -0.804 ≈80% ITM Gamma 0.104 Theta -0.017 Vega 0.097 Open interest 0 Model this put
0	—	15.9%	0.286	—		—	—	—	—	0
Call · $161 Snapshot session Unknown Last — Breakeven — Implied vol 15.9% Delta 0.286 ≈29% ITM Gamma 0.059 Theta -0.052 Vega 0.128 Open interest 0 Model this call Put · $161 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	12.5%	0.173	$1.01		—	—	—	—	0
Call · $162 Snapshot session Aug 20, 2026 Last $1.01 Breakeven $163.01 Implied vol 12.5% Delta 0.173 ≈17% ITM Gamma 0.057 Theta -0.031 Vega 0.1 Open interest 1 Model this call Put · $162 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	1	15.1%	0.17	$0.27		—	—	—	—	0
Call · $163 Snapshot session Aug 25, 2026 Last $0.27 Breakeven $163.27 Implied vol 15.1% Delta 0.17 ≈17% ITM Gamma 0.046 Theta -0.037 Vega 0.1 Open interest 1 Model this call Put · $163 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
19	7	14%	0.077	$0.27		—	—	—	—	0
Call · $165 Snapshot session Aug 21, 2026 Last $0.27 Breakeven $165.27 Implied vol 14% Delta 0.077 ≈8% ITM Gamma 0.029 Theta -0.019 Vega 0.068 Open interest 19 Model this call Put · $165 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 27, 2026–Aug 25, 2026; 29 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 1064642 CUSIP 78464A516 13F (30d) 111 filings 110 filers