MGNX · Macrogenics Inc

Track MGNX — free

$4.22 +0.14 (+3.43%) At close · Aug 14

Market Cap

$268.81M

63.70M

Options Chain

Underlying $4.22 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 16 contracts · mixed snapshot sessions · Jun 25, 2026–Aug 14, 2026; 3 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 6d Sep 18 34d Oct 16 62d Jan 15 153d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
1	2	—	—	$3.51		$0.05	—	—	4	6
Call · $1 In the money Snapshot session Jun 30, 2026 Last $3.51 Breakeven $4.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $1 Snapshot session Aug 11, 2026 Last $0.05 Breakeven $0.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
3	3	—	—	$2.11		$0.02	—	—	2	2
Call · $2 In the money Snapshot session Aug 13, 2026 Last $2.11 Breakeven $4.11 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $2 Snapshot session Jul 24, 2026 Last $0.02 Breakeven $1.98 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
1	2	—	—	$1.37		$0.05	-0.103	243.9%	5	785
Call · $3 In the money Snapshot session Aug 13, 2026 Last $1.37 Breakeven $4.37 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $3 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $2.95 Implied vol 243.9% Delta -0.103 ≈10% ITM Gamma 0.139 Theta -0.02 Vega 0.001 Open interest 785 Model this put
2.1k	3	64.3%	0.758	$0.07		$0.27	-0.348	141.3%	22	2.5k
Call · $4 In the money Snapshot session Aug 14, 2026 Last $0.07 Breakeven $4.07 Implied vol 64.3% Delta 0.758 ≈76% ITM Gamma 0.906 Theta -0.009 Vega 0.002 Open interest 2.1k Model this call Put · $4 Snapshot session Aug 14, 2026 Last $0.27 Breakeven $3.73 Implied vol 141.3% Delta -0.348 ≈35% ITM Gamma 0.489 Theta -0.024 Vega 0.002 Open interest 2.5k Model this put
Underlying $4.22
309	24	271.2%	0.379	$0.10		$1.15	-0.592	307.3%	1	1
Call · $5 Snapshot session Aug 12, 2026 Last $0.10 Breakeven $5.10 Implied vol 271.2% Delta 0.379 ≈38% ITM Gamma 0.261 Theta -0.047 Vega 0.002 Open interest 309 Model this call Put · $5 In the money Snapshot session Jul 17, 2026 Last $1.15 Breakeven $3.85 Implied vol 307.3% Delta -0.592 ≈59% ITM Gamma 0.236 Theta -0.054 Vega 0.002 Open interest 1 Model this put
24	1	290%	0.225	$0.10		—	-0.69	377.5%	—	0
Call · $6 Snapshot session Jul 27, 2026 Last $0.10 Breakeven $6.10 Implied vol 290% Delta 0.225 ≈23% ITM Gamma 0.191 Theta -0.039 Vega 0.002 Open interest 24 Model this call Put · $6 In the money Snapshot session Unknown Last — Breakeven — Implied vol 377.5% Delta -0.69 ≈69% ITM Gamma 0.176 Theta -0.061 Vega 0.002 Open interest 0 Model this put
32	12	378.8%	0.211	$0.38		—	-0.699	476.2%	—	0
Call · $7 Snapshot session Jun 25, 2026 Last $0.38 Breakeven $7.38 Implied vol 378.8% Delta 0.211 ≈21% ITM Gamma 0.141 Theta -0.05 Vega 0.002 Open interest 32 Model this call Put · $7 In the money Snapshot session Unknown Last — Breakeven — Implied vol 476.2% Delta -0.699 ≈70% ITM Gamma 0.136 Theta -0.075 Vega 0.002 Open interest 0 Model this put
2	1	536.4%	0.281	$0.05		—	-0.743	509%	—	0
Call · $8 Snapshot session Jul 27, 2026 Last $0.05 Breakeven $8.05 Implied vol 536.4% Delta 0.281 ≈28% ITM Gamma 0.115 Theta -0.082 Vega 0.002 Open interest 2 Model this call Put · $8 In the money Snapshot session Unknown Last — Breakeven — Implied vol 509% Delta -0.743 ≈74% ITM Gamma 0.117 Theta -0.074 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 · Jun 25, 2026–Aug 14, 2026; 3 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 1125345 CUSIP 556099109 13F (30d) 126 filings 122 filers Visit website Investor relations