TWIN · Twin Disc Inc

Track TWIN — free Ask ALVIS about TWIN

$23.09 -0.17 (-0.71%) At close · Jul 28

Market Cap

$335.33M

14.42M

Options Chain

15-min delayed Underlying $23.09 · today Options Calculator

Positioning

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

Put / call OI

0.71

Balanced positioning

Open interest

contracts outstanding

Volume

traded today

Max pain

$22.50

$0.59 below spot

ATM implied vol

99.9%

market's expected move

Open interest by strike

Calls Puts

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Dec 18 142d Mar 19 233d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	243.9%	0.952	—		—	—	—	—	0
Call · $10 In the money Last — Breakeven — Implied vol 243.9% Delta 0.952 ≈95% ITM Gamma 0.007 Theta -0.031 Vega 0.006 Open interest 0 Model this call Put · $10 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	186.7%	0.937	—		—	-0.067	194%	—	0
Call · $12.5 In the money Last — Breakeven — Implied vol 186.7% Delta 0.937 ≈94% ITM Gamma 0.011 Theta -0.029 Vega 0.007 Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol 194% Delta -0.067 ≈7% ITM Gamma 0.011 Theta -0.031 Vega 0.007 Open interest 0 Model this put
0	—	140.8%	0.918	—		—	-0.099	158.4%	—	0
Call · $15 In the money Last — Breakeven — Implied vol 140.8% Delta 0.918 ≈92% ITM Gamma 0.018 Theta -0.028 Vega 0.008 Open interest 0 Model this call Put · $15 Last — Breakeven — Implied vol 158.4% Delta -0.099 ≈10% ITM Gamma 0.019 Theta -0.035 Vega 0.012 Open interest 0 Model this put
0	—	131.4%	0.842	—		—	-0.15	125.1%	—	0
Call · $17.5 In the money Last — Breakeven — Implied vol 131.4% Delta 0.842 ≈84% ITM Gamma 0.031 Theta -0.041 Vega 0.013 Open interest 0 Model this call Put · $17.5 Last — Breakeven — Implied vol 125.1% Delta -0.15 ≈15% ITM Gamma 0.032 Theta -0.036 Vega 0.013 Open interest 0 Model this put
0	—	102.9%	0.754	—		$1.29	-0.194	75.6%	5	5
Call · $20 In the money Last — Breakeven — Implied vol 102.9% Delta 0.754 ≈75% ITM Gamma 0.052 Theta -0.041 Vega 0.019 Open interest 0 Model this call Put · $20 Last $1.29 Breakeven $18.71 Implied vol 75.6% Delta -0.194 ≈19% ITM Gamma 0.063 Theta -0.026 Vega 0.014 Open interest 5 Model this put
10	10	103.7%	0.595	$3.30		$2.12	-0.406	96.1%	5	5
Call · $22.5 In the money Last $3.30 Breakeven $25.80 Implied vol 103.7% Delta 0.595 ≈59% ITM Gamma 0.064 Theta -0.051 Vega 0.023 Open interest 10 Model this call Put · $22.5 Last $2.12 Breakeven $20.38 Implied vol 96.1% Delta -0.406 ≈41% ITM Gamma 0.069 Theta -0.046 Vega 0.023 Open interest 5 Model this put
Underlying $23.09
3	1	132.2%	0.477	$1.25		—	-0.648	65.6%	—	0
Call · $25 Last $1.25 Breakeven $26.25 Implied vol 132.2% Delta 0.477 ≈48% ITM Gamma 0.051 Theta -0.067 Vega 0.024 Open interest 3 Model this call Put · $25 In the money Last — Breakeven — Implied vol 65.6% Delta -0.648 ≈65% ITM Gamma 0.098 Theta -0.029 Vega 0.021 Open interest 0 Model this put
1	1	118.9%	0.241	$0.70		—	—	—	—	0
Call · $30 Last $0.70 Breakeven $30.70 Implied vol 118.9% Delta 0.241 ≈24% ITM Gamma 0.045 Theta -0.047 Vega 0.018 Open interest 1 Model this call Put · $30 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 100378 CUSIP 901476101 13F (30d) 11 filings 11 filers Visit website Investor relations