MED · Medifast Inc

Track MED — free

$11.44 -0.04 (-0.35%) At close · Aug 14

Market Cap

$127.91M

11.18M

Options Chain

Underlying $11.44 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 18 contracts · mixed snapshot sessions · Aug 3, 2026–Aug 14, 2026; 7 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 Dec 18 124d Mar 19 215d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	808.9%	0.981	—		$0.67	—	—	1	1
Call · $2.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 808.9% Delta 0.981 ≈98% ITM Gamma 0.004 Theta -0.05 Vega 0.001 Open interest 0 Model this call Put · $2.5 Snapshot session Aug 4, 2026 Last $0.67 Breakeven $1.83 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	536.6%	0.949	—		$0.10	—	—	1	1
Call · $5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 536.6% Delta 0.949 ≈95% ITM Gamma 0.015 Theta -0.076 Vega 0.001 Open interest 0 Model this call Put · $5 Snapshot session Aug 4, 2026 Last $0.10 Breakeven $4.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
600	26	224.4%	0.959	$5.39		$0.04	-0.075	282.7%	1	17
Call · $7.5 In the money Snapshot session Aug 4, 2026 Last $5.39 Breakeven $12.89 Implied vol 224.4% Delta 0.959 ≈96% ITM Gamma 0.029 Theta -0.027 Vega 0.001 Open interest 600 Model this call Put · $7.5 Snapshot session Aug 4, 2026 Last $0.04 Breakeven $7.46 Implied vol 282.7% Delta -0.075 ≈8% ITM Gamma 0.037 Theta -0.054 Vega 0.002 Open interest 17 Model this put
1.5k	1	124.9%	0.839	$1.65		$0.05	-0.268	241.1%	2	444
Call · $10 In the money Snapshot session Aug 14, 2026 Last $1.65 Breakeven $11.65 Implied vol 124.9% Delta 0.839 ≈84% ITM Gamma 0.146 Theta -0.042 Vega 0.003 Open interest 1.5k Model this call Put · $10 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $9.95 Implied vol 241.1% Delta -0.268 ≈27% ITM Gamma 0.103 Theta -0.107 Vega 0.004 Open interest 444 Model this put
Underlying $11.44
322	5	78%	0.18	$0.08		$1.10	—	—	23	58
Call · $12.5 Snapshot session Aug 12, 2026 Last $0.08 Breakeven $12.58 Implied vol 78% Delta 0.18 ≈18% ITM Gamma 0.251 Theta -0.028 Vega 0.004 Open interest 322 Model this call Put · $12.5 In the money Snapshot session Aug 14, 2026 Last $1.10 Breakeven $11.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 58 Model this put
1.2k	5	167.4%	0.1	$0.05		$1.75	—	—	5	1
Call · $15 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $15.05 Implied vol 167.4% Delta 0.1 ≈10% ITM Gamma 0.078 Theta -0.039 Vega 0.003 Open interest 1.2k Model this call Put · $15 In the money Snapshot session Aug 4, 2026 Last $1.75 Breakeven $13.25 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $17.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$10.03	—	—	1	0
Call · $20 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20 In the money Snapshot session Aug 3, 2026 Last $10.03 Breakeven $9.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.943	328.5%	—	0
Call · $22.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 328.5% Delta -0.943 ≈94% ITM Gamma 0.026 Theta -0.049 Vega 0.002 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 · Aug 3, 2026–Aug 14, 2026; 7 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 910329 CUSIP 58470H101 13F (30d) 109 filings 107 filers Visit website Investor relations