TECX · Tectonic Therapeutic, Inc.

Track TECX — free

$36.05 -0.99 (-2.67%) At close · Aug 20

Market Cap

$699.09M

19.55M

Options Chain

Underlying $36.05 · at close Aug 20, 2026 Options Calculator

Positioning

Aug 21, 2026 · expires today · 22 contracts · mixed snapshot sessions · Jul 15, 2026–Aug 20, 2026; 8 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 0d Sep 18 28d Oct 16 56d Dec 18 119d Jan 15 147d Feb 19 182d Apr 16 238d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	1810.4%	0.944	—		—	-0.038	1533%	—	0
Call · $15 In the money Snapshot session Unknown Last — Breakeven — Implied vol 1810.4% Delta 0.944 ≈94% ITM Gamma 0.004 Theta -2.589 Vega 0.002 Open interest 0 Model this call Put · $15 Snapshot session Unknown Last — Breakeven — Implied vol 1533% Delta -0.038 ≈4% ITM Gamma 0.004 Theta -1.619 Vega 0.002 Open interest 0 Model this put
0	—	1421.4%	0.942	—		—	-0.045	1288.4%	—	0
Call · $17.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 1421.4% Delta 0.942 ≈94% ITM Gamma 0.006 Theta -2.08 Vega 0.002 Open interest 0 Model this call Put · $17.5 Snapshot session Unknown Last — Breakeven — Implied vol 1288.4% Delta -0.045 ≈5% ITM Gamma 0.005 Theta -1.56 Vega 0.002 Open interest 0 Model this put
0	1	1201.4%	0.931	$9.00		$0.30	-0.054	1078.3%	10	10
Call · $20 In the money Snapshot session Jul 29, 2026 Last $9.00 Breakeven $29.00 Implied vol 1201.4% Delta 0.931 ≈93% ITM Gamma 0.008 Theta -2.018 Vega 0.002 Open interest 0 Model this call Put · $20 Snapshot session Aug 3, 2026 Last $0.30 Breakeven $19.70 Implied vol 1078.3% Delta -0.054 ≈5% ITM Gamma 0.007 Theta -1.495 Vega 0.002 Open interest 10 Model this put
0	—	1242.9%	0.886	—		$0.20	-0.089	1061.5%	4	104
Call · $22.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 1242.9% Delta 0.886 ≈89% ITM Gamma 0.011 Theta -3.022 Vega 0.003 Open interest 0 Model this call Put · $22.5 Snapshot session Aug 7, 2026 Last $0.20 Breakeven $22.30 Implied vol 1061.5% Delta -0.089 ≈9% ITM Gamma 0.011 Theta -2.185 Vega 0.002 Open interest 104 Model this put
29	25	766.2%	0.914	$11.70		$0.40	-0.079	730.5%	5	1.5k
Call · $25 In the money Snapshot session Aug 19, 2026 Last $11.70 Breakeven $36.70 Implied vol 766.2% Delta 0.914 ≈91% ITM Gamma 0.015 Theta -1.526 Vega 0.002 Open interest 29 Model this call Put · $25 Snapshot session Aug 10, 2026 Last $0.40 Breakeven $24.60 Implied vol 730.5% Delta -0.079 ≈8% ITM Gamma 0.014 Theta -1.351 Vega 0.002 Open interest 1.5k Model this put
54	5	490.9%	0.851	$6.31		$3.25	-0.149	491.4%	5	0
Call · $30 In the money Snapshot session Aug 12, 2026 Last $6.31 Breakeven $36.31 Implied vol 490.9% Delta 0.851 ≈85% ITM Gamma 0.034 Theta -1.438 Vega 0.003 Open interest 54 Model this call Put · $30 Snapshot session Jul 17, 2026 Last $3.25 Breakeven $26.75 Implied vol 491.4% Delta -0.149 ≈15% ITM Gamma 0.034 Theta -1.438 Vega 0.003 Open interest 0 Model this put
1.6k	2	343.7%	0.609	$1.70		$0.50	-0.331	179.2%	1	0
Call · $35 In the money Snapshot session Aug 13, 2026 Last $1.70 Breakeven $36.70 Implied vol 343.7% Delta 0.609 ≈61% ITM Gamma 0.079 Theta -1.667 Vega 0.006 Open interest 1.6k Model this call Put · $35 Snapshot session Aug 20, 2026 Last $0.50 Breakeven $34.50 Implied vol 179.2% Delta -0.331 ≈33% ITM Gamma 0.145 Theta -0.828 Vega 0.005 Open interest 0 Model this put
Underlying $36.05
25	2	375.4%	0.259	$1.50		—	—	—	—	0
Call · $40 Snapshot session Jul 20, 2026 Last $1.50 Breakeven $41.50 Implied vol 375.4% Delta 0.259 ≈26% ITM Gamma 0.062 Theta -1.551 Vega 0.005 Open interest 25 Model this call Put · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	1	473.6%	0.134	$0.20		—	—	—	—	0
Call · $45 Snapshot session Aug 12, 2026 Last $0.20 Breakeven $45.20 Implied vol 473.6% Delta 0.134 ≈13% ITM Gamma 0.032 Theta -1.292 Vega 0.003 Open interest 0 Model this call Put · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1.6k	5	617.9%	0.109	$0.32		$13.30	—	—	10	5
Call · $50 Snapshot session Aug 13, 2026 Last $0.32 Breakeven $50.32 Implied vol 617.9% Delta 0.109 ≈11% ITM Gamma 0.021 Theta -1.448 Vega 0.003 Open interest 1.6k Model this call Put · $50 In the money Snapshot session Aug 18, 2026 Last $13.30 Breakeven $36.70 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this put
1	1	748.9%	0.095	$0.95		—	—	—	—	0
Call · $55 Snapshot session Jul 15, 2026 Last $0.95 Breakeven $55.95 Implied vol 748.9% Delta 0.095 ≈9% ITM Gamma 0.016 Theta -1.602 Vega 0.003 Open interest 1 Model this call Put · $55 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 15, 2026–Aug 20, 2026; 8 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 1681087 CUSIP 878972108 13F (30d) 118 filings 118 filers Visit website Investor relations