Transdigm Group (TDG) Options Chain

NYSE: TDGIndustrialsMilitary/Government/TechnicalUSD

1,107.99+18.69 (+1.72%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $1,107.99
Put/call ratio (OI): 3.50
Put/call ratio (volume): 5.00
ATM implied volatility: 28.6%
Expected move: ±$247.95
Open interest (C / P): 4 / 14

TDG options summary

The TDG options chain for the May 21, 2027 expiration lists 2 call and 6 put contracts, with 223 days until expiration. Open interest stands at 4 calls and 14 puts, a put/call ratio of 3.50, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $1,110.00 strike is 28.6%, which implies the market expects a move of about ±$247.95 (22.4%) in Transdigm Group stock by expiration.

The most open interest sits at the $1,020.00 call (2 contracts) and the $740.00 put (6 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

TDG options chain · May 21, 2027

TDG calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	740.00	3.00	12.30	9.10	39.3%	5	6
2	—	39.8%	183.29	171.20	180.40	1,020.00	—	—	—	—	—	—
—	—	—	—	—	—	1,050.00	65.00	74.00	82.02	29.8%	1	1
—	—	—	—	—	—	1,080.00	77.10	86.00	92.40	29.1%	1	3
—	—	—	—	—	—	1,100.00	86.00	95.00	94.15	28.8%	1	1
TDG $1,107.99
—	—	—	—	—	—	1,110.00	90.70	100.00	109.97	28.6%	1	1
2	2	36.8%	105.82	108.50	117.60	1,130.00	—	—	—	—	—	—
—	—	—	—	—	—	1,140.00	105.90	115.00	110.82	28.0%	1	2

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 May 21, 2027 expiration, the TDG put/call ratio based on open interest is 3.50 (14 puts vs 4 calls), and 5.00 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 May 21, 2027 is about 28.6%, 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.