TEN · Tsakos Energy Navigation Ltd

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$39.24 +0.07 (+0.18%) At close · Jul 28

Market Cap

$1.18B

30.13M

Options Chain

15-min delayed Underlying $39.24 · at close Jul 28, 2026 Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 18 contracts

Put / call OI

0.37

Call-heavy positioning

Open interest

2,722

contracts outstanding

Volume

1,504

traded today

Max pain

$40.00

$0.76 above spot

ATM implied vol

49.8%

market's expected move

Open interest by strike

Calls Puts

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Dec 18 142d Jan 15 170d Mar 19 233d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	2	186.8%	0.952	$20.21		—	—	—	—	0
Call · $20 In the money Last $20.21 Breakeven $40.21 Implied vol 186.8% Delta 0.952 ≈95% ITM Gamma 0.005 Theta -0.037 Vega 0.012 Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	177.4%	0.927	$17.75		—	—	—	—	0
Call · $22.5 In the money Last $17.75 Breakeven $40.25 Implied vol 177.4% Delta 0.927 ≈93% ITM Gamma 0.008 Theta -0.049 Vega 0.013 Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	1.1k	132.4%	0.934	$15.00		—	—	—	—	0
Call · $25 In the money Last $15.00 Breakeven $40.00 Implied vol 132.4% Delta 0.934 ≈93% ITM Gamma 0.01 Theta -0.034 Vega 0.014 Open interest 0 Model this call Put · $25 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
60	330	—	—	$9.60		$0.60	-0.1	90.6%	1	2
Call · $30 In the money Last $9.60 Breakeven $39.60 Implied vol — Delta — Gamma — Theta — Vega — Open interest 60 Model this call Put · $30 Last $0.60 Breakeven $29.40 Implied vol 90.6% Delta -0.1 ≈10% ITM Gamma 0.02 Theta -0.034 Vega 0.015 Open interest 2 Model this put
89	29	45.7%	0.848	$4.60		$0.40	-0.155	46.3%	1	301
Call · $35 In the money Last $4.60 Breakeven $39.60 Implied vol 45.7% Delta 0.848 ≈85% ITM Gamma 0.053 Theta -0.021 Vega 0.025 Open interest 89 Model this call Put · $35 Last $0.40 Breakeven $34.60 Implied vol 46.3% Delta -0.155 ≈15% ITM Gamma 0.052 Theta -0.024 Vega 0.025 Open interest 301 Model this put
Underlying $39.24
1.5k	2	49.3%	0.458	$1.65		$2.45	-0.538	50.3%	1	411
Call · $40 Last $1.65 Breakeven $41.65 Implied vol 49.3% Delta 0.458 ≈46% ITM Gamma 0.081 Theta -0.041 Vega 0.04 Open interest 1.5k Model this call Put · $40 In the money Last $2.45 Breakeven $37.55 Implied vol 50.3% Delta -0.538 ≈54% ITM Gamma 0.08 Theta -0.043 Vega 0.04 Open interest 411 Model this put
307	5	50.6%	0.151	$0.34		$6.50	-0.942	33.5%	20	22
Call · $45 Last $0.34 Breakeven $45.34 Implied vol 50.6% Delta 0.151 ≈15% ITM Gamma 0.047 Theta -0.025 Vega 0.028 Open interest 307 Model this call Put · $45 In the money Last $6.50 Breakeven $38.50 Implied vol 33.5% Delta -0.942 ≈94% ITM Gamma 0.033 Theta -0.009 Vega 0.011 Open interest 22 Model this put
16	10	68.4%	0.091	$0.07		—	-0.94	58.4%	—	0
Call · $50 Last $0.07 Breakeven $50.07 Implied vol 68.4% Delta 0.091 ≈9% ITM Gamma 0.024 Theta -0.024 Vega 0.02 Open interest 16 Model this call Put · $50 In the money Last — Breakeven — Implied vol 58.4% Delta -0.94 ≈94% ITM Gamma 0.02 Theta -0.015 Vega 0.011 Open interest 0 Model this put
0	—	96.4%	0.101	—		—	-0.962	71.9%	—	0
Call · $55 Last — Breakeven — Implied vol 96.4% Delta 0.101 ≈10% ITM Gamma 0.018 Theta -0.036 Vega 0.021 Open interest 0 Model this call Put · $55 In the money Last — Breakeven — Implied vol 71.9% Delta -0.962 ≈96% ITM Gamma 0.011 Theta -0.012 Vega 0.006 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1166663 CUSIP G9108L173 13F (30d) 11 filings 11 filers Visit website