TTEK · Tetra Tech Inc

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$31.70 +1.13 (+3.70%)

Market Cap

$7.93B

259.52M

Options Chain

15-min delayed Underlying $31.70 · today Options Calculator

Positioning

Aug 21, 2026 · 28 days to expiry · 16 contracts

Put / call OI

1.15

Balanced positioning

Open interest

507

contracts outstanding

Volume

142

traded today

Max pain

$30.00

$1.70 below spot

ATM implied vol

45.6%

market's expected move

Open interest by strike

Calls Puts

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 28d Sep 18 56d Dec 18 147d Mar 19 238d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $15 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $15 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $17.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	-0.06	121.5%	—	0
Call · $20 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol 121.5% Delta -0.06 ≈6% ITM Gamma 0.011 Theta -0.023 Vega 0.012 Open interest 0 Model this put
1	1	85.9%	0.944	$5.08		$0.40	-0.082	99.7%	1	2
Call · $22.5 In the money Last $5.08 Breakeven $27.58 Implied vol 85.9% Delta 0.944 ≈94% ITM Gamma 0.015 Theta -0.017 Vega 0.013 Open interest 1 Model this call Put · $22.5 Last $0.40 Breakeven $22.10 Implied vol 99.7% Delta -0.082 ≈8% ITM Gamma 0.017 Theta -0.024 Vega 0.013 Open interest 2 Model this put
36	35	59.3%	0.941	$6.40		$0.30	-0.113	79.6%	1	6
Call · $25 In the money Last $6.40 Breakeven $31.40 Implied vol 59.3% Delta 0.941 ≈94% ITM Gamma 0.023 Theta -0.013 Vega 0.013 Open interest 36 Model this call Put · $25 Last $0.30 Breakeven $24.70 Implied vol 79.6% Delta -0.113 ≈11% ITM Gamma 0.028 Theta -0.024 Vega 0.02 Open interest 6 Model this put
20	2	42.2%	0.708	$3.04		$1.00	-0.311	48.9%	11	263
Call · $30 In the money Last $3.04 Breakeven $33.04 Implied vol 42.2% Delta 0.708 ≈71% ITM Gamma 0.093 Theta -0.024 Vega 0.029 Open interest 20 Model this call Put · $30 Last $1.00 Breakeven $29.00 Implied vol 48.9% Delta -0.311 ≈31% ITM Gamma 0.084 Theta -0.027 Vega 0.029 Open interest 263 Model this put
Underlying $31.70
98	11	41.2%	0.215	$0.55		—	-0.725	53%	—	0
Call · $35 Last $0.55 Breakeven $35.55 Implied vol 41.2% Delta 0.215 ≈21% ITM Gamma 0.081 Theta -0.019 Vega 0.025 Open interest 98 Model this call Put · $35 In the money Last — Breakeven — Implied vol 53% Delta -0.725 ≈72% ITM Gamma 0.074 Theta -0.026 Vega 0.032 Open interest 0 Model this put
81	80	70.2%	0.137	$0.06		—	-0.885	65.7%	—	0
Call · $40 Last $0.06 Breakeven $40.06 Implied vol 70.2% Delta 0.137 ≈14% ITM Gamma 0.036 Theta -0.025 Vega 0.018 Open interest 81 Model this call Put · $40 In the money Last — Breakeven — Implied vol 65.7% Delta -0.885 ≈88% ITM Gamma 0.036 Theta -0.018 Vega 0.017 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 831641 CUSIP 88162G103 13F (30d) 98 filings 95 filers Visit website Investor relations