SBLK · Star Bulk Carriers Corp.

Track SBLK — free

$29.05 +0.31 (+1.08%) At close · Aug 14

Market Cap

$3.24B

111.67M

Options Chain

Underlying $29.05 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 54 contracts · mixed snapshot sessions · Mar 11, 2026–Aug 14, 2026; 10 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

Aug 21 5d Sep 18 33d Nov 20 96d Jan 15 152d Feb 19 187d Jun 17 305d Jan 21 523d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	4	—	—	$16.89		—	—	—	—	0
Call · $10 In the money Snapshot session Jun 9, 2026 Last $16.89 Breakeven $26.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $10 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	4	—	—	$16.00		—	—	—	—	0
Call · $11 In the money Snapshot session Jun 9, 2026 Last $16.00 Breakeven $27.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $11 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	—	—	$14.81		—	—	—	—	0
Call · $12 In the money Snapshot session Jun 9, 2026 Last $14.81 Breakeven $26.81 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $12 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	4	—	—	$14.03		—	—	—	—	0
Call · $13 In the money Snapshot session Jun 9, 2026 Last $14.03 Breakeven $27.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $13 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	—	—	$12.80		$0.28	—	—	11	26.8k
Call · $14 In the money Snapshot session Jun 9, 2026 Last $12.80 Breakeven $26.80 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $14 Snapshot session Jun 2, 2026 Last $0.28 Breakeven $13.72 Implied vol — Delta — Gamma — Theta — Vega — Open interest 26.8k Model this put
0	4	—	—	$12.03		$0.05	—	—	5	5
Call · $15 In the money Snapshot session Jun 9, 2026 Last $12.03 Breakeven $27.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $15 Snapshot session Jul 16, 2026 Last $0.05 Breakeven $14.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
0	—	—	—	—		$0.03	—	—	5	26.8k
Call · $16 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $16 Snapshot session Jul 16, 2026 Last $0.03 Breakeven $15.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 26.8k Model this put
0	2	—	—	$9.70		$0.05	-0.064	319.2%	5	18
Call · $17 In the money Snapshot session Jun 9, 2026 Last $9.70 Breakeven $26.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $16.95 Implied vol 319.2% Delta -0.064 ≈6% ITM Gamma 0.011 Theta -0.125 Vega 0.005 Open interest 18 Model this put
0	—	—	—	—		$0.05	-0.042	240.2%	3	14
Call · $18 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $18 Snapshot session Jul 30, 2026 Last $0.05 Breakeven $17.95 Implied vol 240.2% Delta -0.042 ≈4% ITM Gamma 0.01 Theta -0.068 Vega 0.003 Open interest 14 Model this put
20	1	—	—	$7.79		$0.14	-0.061	241.4%	1	45
Call · $19 In the money Snapshot session Jul 22, 2026 Last $7.79 Breakeven $26.79 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 Model this call Put · $19 Snapshot session Jun 1, 2026 Last $0.14 Breakeven $18.86 Implied vol 241.4% Delta -0.061 ≈6% ITM Gamma 0.014 Theta -0.092 Vega 0.005 Open interest 45 Model this put
1	1	—	—	$7.57		$0.02	-0.06	208%	10	68
Call · $20 In the money Snapshot session Jul 28, 2026 Last $7.57 Breakeven $27.57 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $20 Snapshot session Aug 10, 2026 Last $0.02 Breakeven $19.98 Implied vol 208% Delta -0.06 ≈6% ITM Gamma 0.015 Theta -0.078 Vega 0.005 Open interest 68 Model this put
7	1	—	—	$6.53		$0.30	-0.071	189.7%	1	232
Call · $21 In the money Snapshot session Jul 28, 2026 Last $6.53 Breakeven $27.53 Implied vol — Delta — Gamma — Theta — Vega — Open interest 7 Model this call Put · $21 Snapshot session Jun 30, 2026 Last $0.30 Breakeven $20.70 Implied vol 189.7% Delta -0.071 ≈7% ITM Gamma 0.019 Theta -0.08 Vega 0.006 Open interest 232 Model this put
33	3	—	—	$6.60		$0.13	-0.063	154.9%	35	905
Call · $22 In the money Snapshot session Aug 7, 2026 Last $6.60 Breakeven $28.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 33 Model this call Put · $22 Snapshot session Aug 3, 2026 Last $0.13 Breakeven $21.87 Implied vol 154.9% Delta -0.063 ≈6% ITM Gamma 0.022 Theta -0.061 Vega 0.006 Open interest 905 Model this put
2	1	—	—	$5.53		$0.07	-0.05	118.4%	2	1.8k
Call · $23 In the money Snapshot session Aug 4, 2026 Last $5.53 Breakeven $28.53 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $23 Snapshot session Aug 3, 2026 Last $0.07 Breakeven $22.93 Implied vol 118.4% Delta -0.05 ≈5% ITM Gamma 0.024 Theta -0.039 Vega 0.003 Open interest 1.8k Model this put
190	16	—	—	$4.79		$0.05	-0.058	101.7%	1	261
Call · $24 In the money Snapshot session Aug 13, 2026 Last $4.79 Breakeven $28.79 Implied vol — Delta — Gamma — Theta — Vega — Open interest 190 Model this call Put · $24 Snapshot session Aug 7, 2026 Last $0.05 Breakeven $23.95 Implied vol 101.7% Delta -0.058 ≈6% ITM Gamma 0.031 Theta -0.037 Vega 0.003 Open interest 261 Model this put
1.2k	22	—	—	$3.93		$0.08	-0.079	88%	2	1.3k
Call · $25 In the money Snapshot session Aug 14, 2026 Last $3.93 Breakeven $28.93 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1.2k Model this call Put · $25 Snapshot session Aug 11, 2026 Last $0.08 Breakeven $24.92 Implied vol 88% Delta -0.079 ≈8% ITM Gamma 0.045 Theta -0.041 Vega 0.006 Open interest 1.3k Model this put
741	1	—	—	$2.97		$0.24	-0.096	70.1%	1.4k	840
Call · $26 In the money Snapshot session Aug 14, 2026 Last $2.97 Breakeven $28.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 741 Model this call Put · $26 Snapshot session Aug 12, 2026 Last $0.24 Breakeven $25.76 Implied vol 70.1% Delta -0.096 ≈10% ITM Gamma 0.065 Theta -0.038 Vega 0.006 Open interest 840 Model this put
4k	63	—	—	$2.00		$0.14	-0.148	58.5%	59	377
Call · $27 In the money Snapshot session Aug 14, 2026 Last $2.00 Breakeven $29.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4k Model this call Put · $27 Snapshot session Aug 14, 2026 Last $0.14 Breakeven $26.86 Implied vol 58.5% Delta -0.148 ≈15% ITM Gamma 0.107 Theta -0.043 Vega 0.01 Open interest 377 Model this put
1.7k	22	17.9%	0.966	$1.00		$1.25	-0.291	59.1%	23	125
Call · $28 In the money Snapshot session Aug 14, 2026 Last $1.00 Breakeven $29.00 Implied vol 17.9% Delta 0.966 ≈97% ITM Gamma 0.149 Theta -0.003 Vega 0.003 Open interest 1.7k Model this call Put · $28 Snapshot session Aug 12, 2026 Last $1.25 Breakeven $26.75 Implied vol 59.1% Delta -0.291 ≈29% ITM Gamma 0.157 Theta -0.064 Vega 0.013 Open interest 125 Model this put
1.8k	261	16.2%	0.576	$0.41		$1.59	-0.466	69.3%	3	12
Call · $29 In the money Snapshot session Aug 14, 2026 Last $0.41 Breakeven $29.41 Implied vol 16.2% Delta 0.576 ≈58% ITM Gamma 0.66 Theta -0.019 Vega 0.015 Open interest 1.8k Model this call Put · $29 Snapshot session Aug 13, 2026 Last $1.59 Breakeven $27.41 Implied vol 69.3% Delta -0.466 ≈47% ITM Gamma 0.156 Theta -0.088 Vega 0.015 Open interest 12 Model this put
Underlying $29.05
3.7k	11	26.1%	0.188	$0.11		$2.20	-0.566	101.2%	1	1
Call · $30 Snapshot session Aug 14, 2026 Last $0.11 Breakeven $30.11 Implied vol 26.1% Delta 0.188 ≈19% ITM Gamma 0.279 Theta -0.022 Vega 0.01 Open interest 3.7k Model this call Put · $30 In the money Snapshot session Jul 30, 2026 Last $2.20 Breakeven $27.80 Implied vol 101.2% Delta -0.566 ≈57% ITM Gamma 0.105 Theta -0.126 Vega 0.015 Open interest 1 Model this put
543	1	39%	0.108	$0.05		—	-0.624	124.9%	—	0
Call · $31 Snapshot session Aug 11, 2026 Last $0.05 Breakeven $31.05 Implied vol 39% Delta 0.108 ≈11% ITM Gamma 0.128 Theta -0.022 Vega 0.007 Open interest 543 Model this call Put · $31 In the money Snapshot session Unknown Last — Breakeven — Implied vol 124.9% Delta -0.624 ≈62% ITM Gamma 0.083 Theta -0.152 Vega 0.013 Open interest 0 Model this put
18	4	67.4%	0.141	$0.07		$4.14	-0.676	135.3%	2	3
Call · $32 Snapshot session Aug 5, 2026 Last $0.07 Breakeven $32.07 Implied vol 67.4% Delta 0.141 ≈14% ITM Gamma 0.091 Theta -0.048 Vega 0.01 Open interest 18 Model this call Put · $32 In the money Snapshot session Aug 5, 2026 Last $4.14 Breakeven $27.86 Implied vol 135.3% Delta -0.676 ≈68% ITM Gamma 0.072 Theta -0.153 Vega 0.013 Open interest 3 Model this put
5	1	87.9%	0.141	$0.11		—	-0.7	156.3%	—	0
Call · $33 Snapshot session Jul 24, 2026 Last $0.11 Breakeven $33.11 Implied vol 87.9% Delta 0.141 ≈14% ITM Gamma 0.069 Theta -0.062 Vega 0.007 Open interest 5 Model this call Put · $33 In the money Snapshot session Unknown Last — Breakeven — Implied vol 156.3% Delta -0.7 ≈70% ITM Gamma 0.06 Theta -0.172 Vega 0.014 Open interest 0 Model this put
8	1	76.9%	0.062	$0.06		$7.76	-0.721	175%	2	0
Call · $34 Snapshot session Jul 30, 2026 Last $0.06 Breakeven $34.06 Implied vol 76.9% Delta 0.062 ≈6% ITM Gamma 0.043 Theta -0.029 Vega 0.004 Open interest 8 Model this call Put · $34 In the money Snapshot session Jul 15, 2026 Last $7.76 Breakeven $26.24 Implied vol 175% Delta -0.721 ≈72% ITM Gamma 0.052 Theta -0.187 Vega 0.014 Open interest 0 Model this put
1	1	123.5%	0.136	$0.64		$9.92	-0.731	196.7%	2	2
Call · $35 Snapshot session Mar 11, 2026 Last $0.64 Breakeven $35.64 Implied vol 123.5% Delta 0.136 ≈14% ITM Gamma 0.048 Theta -0.085 Vega 0.007 Open interest 1 Model this call Put · $35 In the money Snapshot session Jul 17, 2026 Last $9.92 Breakeven $25.08 Implied vol 196.7% Delta -0.731 ≈73% ITM Gamma 0.046 Theta -0.208 Vega 0.014 Open interest 2 Model this put
0	—	—	—	—		—	-0.75	205.9%	—	0
Call · $36 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $36 In the money Snapshot session Unknown Last — Breakeven — Implied vol 205.9% Delta -0.75 ≈75% ITM Gamma 0.042 Theta -0.207 Vega 0.011 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 · Mar 11, 2026–Aug 14, 2026; 10 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 1386716 CUSIP Y8162K204 13F (30d) 197 filings 190 filers Visit website Investor relations