Transdigm Group (TDG) Options Chain
NYSE: TDGIndustrialsMilitary/Government/TechnicalUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 17, 2027
- Days to expiration
- 432
- Share price
- $1,107.99
- Put/call ratio (OI)
- 0.85
- Put/call ratio (volume)
- 0.44
- Expected move
- ±$395.49
- Open interest (C / P)
- 148 / 126
TDG options summary
The TDG options chain for the December 17, 2027 expiration lists 27 call and 30 put contracts, with 432 days until expiration. Open interest stands at 148 calls and 126 puts, a put/call ratio of 0.85, which is fairly balanced between calls and puts. At-the-money implied volatility near the $1,100.00 strike is 32.8%, which implies the market expects a move of about ±$395.49 (35.7%) in Transdigm Group stock by expiration.
The most open interest sits at the $1,500.00 call (41 contracts) and the $780.00 put (50 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
TDG options chain · December 17, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 617.00 | 547.00 | 557.00 | 600.00 | 2.00 | 12.00 | 7.55 | |||||
| 606.00 | 529.00 | 539.00 | 620.00 | — | — | — | |||||
| 582.00 | 512.00 | 522.00 | 640.00 | — | — | — | |||||
| 610.00 | 494.00 | 504.00 | 660.00 | — | — | — | |||||
| 554.00 | 477.00 | 487.00 | 680.00 | — | — | — | |||||
| 565.00 | 460.00 | 470.00 | 700.00 | 10.00 | 20.00 | 15.65 | |||||
| 558.00 | 0.00 | 0.00 | 740.00 | 14.00 | 24.00 | 20.10 | |||||
| 520.00 | 0.00 | 0.00 | 760.00 | 17.00 | 27.00 | 25.50 | |||||
| — | — | — | 780.00 | 20.00 | 30.00 | 29.50 | |||||
| — | — | — | 800.00 | 23.00 | 33.00 | 31.50 | |||||
| — | — | — | 820.00 | 27.00 | 37.00 | 31.50 | |||||
| — | — | — | 840.00 | 0.00 | 0.00 | 31.00 | |||||
| — | — | — | 860.00 | 34.00 | 44.00 | 39.05 | |||||
| 297.10 | 304.00 | 314.00 | 900.00 | — | — | — | |||||
| — | — | — | 940.00 | 54.00 | 64.00 | 67.10 | |||||
| 272.64 | 263.00 | 272.00 | 960.00 | 0.00 | 0.00 | 60.00 | |||||
| 239.50 | 250.00 | 260.00 | 980.00 | 66.00 | 76.00 | 80.98 | |||||
| — | — | — | 1,000.00 | 73.00 | 83.00 | 81.00 | |||||
| — | — | — | 1,020.00 | 80.00 | 90.00 | 81.90 | |||||
| — | — | — | 1,040.00 | 88.00 | 98.00 | 102.58 | |||||
| 254.60 | 201.00 | 211.00 | 1,060.00 | — | — | — | |||||
| 216.90 | 190.00 | 200.00 | 1,080.00 | 104.00 | 114.00 | 120.76 | |||||
| 188.00 | 180.00 | 190.00 | 1,100.00 | 113.00 | 123.00 | 105.71 | |||||
| 214.50 | 170.00 | 180.00 | 1,120.00 | — | — | — | |||||
| 267.00 | 0.00 | 0.00 | 1,140.00 | 133.00 | 143.00 | 153.10 | |||||
| 258.00 | 0.00 | 0.00 | 1,160.00 | — | — | — | |||||
| 152.70 | 141.00 | 151.00 | 1,180.00 | 154.00 | 164.00 | 175.96 | |||||
| 145.50 | 133.00 | 143.00 | 1,200.00 | 0.00 | 0.00 | 150.67 | |||||
| 140.00 | 125.00 | 135.00 | 1,220.00 | 0.00 | 0.00 | 150.20 | |||||
| — | — | — | 1,240.00 | 0.00 | 0.00 | 170.96 | |||||
| — | — | — | 1,260.00 | 203.00 | 213.00 | 168.79 | |||||
| 114.50 | 103.00 | 113.00 | 1,280.00 | 217.00 | 227.00 | 199.00 | |||||
| 93.30 | 96.00 | 106.00 | 1,300.00 | 231.00 | 241.00 | 219.50 | |||||
| — | — | — | 1,320.00 | 245.00 | 255.00 | 255.74 | |||||
| 94.24 | 84.00 | 94.00 | 1,340.00 | 260.00 | 270.00 | 279.97 | |||||
| — | — | — | 1,360.00 | 275.00 | 285.00 | 281.00 | |||||
| 81.00 | 73.00 | 83.00 | 1,380.00 | — | — | — | |||||
| 77.44 | 68.00 | 78.00 | 1,400.00 | 307.00 | 317.00 | 333.24 | |||||
| — | — | — | 1,420.00 | 323.00 | 333.00 | 329.15 | |||||
| 64.50 | 48.00 | 57.00 | 1,500.00 | — | — | — | |||||
| 10.50 | 7.00 | 17.00 | 1,900.00 | — | — | — | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the TDG put/call ratio?
For the December 17, 2027 expiration, the TDG put/call ratio based on open interest is 0.85 (126 puts vs 148 calls), and 0.44 based on today's volume. A ratio above 1 means more puts than calls.
What is TDG's implied volatility?
At-the-money implied volatility for TDG options expiring December 17, 2027 is about 32.8%, an annualized estimate of how much the market expects Transdigm Group stock to move.
How many TDG option expiration dates are there?
TDG has 6 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.