CTOS · Custom Truck One Source, Inc.

Track CTOS — free Ask ALVIS about CTOS

$9.68 -0.67 (-6.47%)

Market Cap

$2.35B

227.43M

Options Chain

15-min delayed Underlying $9.68 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 16 contracts

Put / call OI

0.92

Balanced positioning

Open interest

225

contracts outstanding

Volume

109

traded today

Max pain

$10.00

$0.32 above spot

ATM implied vol

61.4%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Oct 16 79d Dec 18 142d Jan 15 170d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	580.9%	0.952	—		$0.05	-0.019	322.3%	2	4
Call · $2.5 In the money Last — Breakeven — Implied vol 580.9% Delta 0.952 ≈95% ITM Gamma 0.007 Theta -0.031 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last $0.05 Breakeven $2.45 Implied vol 322.3% Delta -0.019 ≈2% ITM Gamma 0.006 Theta -0.008 Vega 0.001 Open interest 4 Model this put
0	—	300.7%	0.896	—		$0.05	—	—	2	3
Call · $5 In the money Last — Breakeven — Implied vol 300.7% Delta 0.896 ≈90% ITM Gamma 0.025 Theta -0.029 Vega 0.004 Open interest 0 Model this call Put · $5 Last $0.05 Breakeven $4.95 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
0	—	155.4%	0.805	—		—	—	—	—	0
Call · $7.5 In the money Last — Breakeven — Implied vol 155.4% Delta 0.805 ≈81% ITM Gamma 0.073 Theta -0.023 Vega 0.007 Open interest 0 Model this call Put · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
Underlying $9.68
11	1	70.6%	0.473	$0.75		$0.78	-0.561	52.3%	50	100
Call · $10 Last $0.75 Breakeven $10.75 Implied vol 70.6% Delta 0.473 ≈47% ITM Gamma 0.232 Theta -0.015 Vega 0.01 Open interest 11 Model this call Put · $10 In the money Last $0.78 Breakeven $9.22 Implied vol 52.3% Delta -0.561 ≈56% ITM Gamma 0.313 Theta -0.01 Vega 0.01 Open interest 100 Model this put
106	53	87%	0.148	$0.22		$2.50	—	—	1	1
Call · $12.5 Last $0.22 Breakeven $12.72 Implied vol 87% Delta 0.148 ≈15% ITM Gamma 0.11 Theta -0.011 Vega 0.005 Open interest 106 Model this call Put · $12.5 In the money Last $2.50 Breakeven $10.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	170.7%	0.214	—		—	—	—	—	0
Call · $15 Last — Breakeven — Implied vol 170.7% Delta 0.214 ≈21% ITM Gamma 0.07 Theta -0.026 Vega 0.008 Open interest 0 Model this call Put · $15 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $17.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $17.5 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $20 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $20 In the money Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 1709682 CUSIP 23204X103 13F (30d) 30 filings 21 filers Visit website Investor relations