TransMedics Group (TMDX) Options Chain

NASDAQ: TMDXHealth CareBiotechnology: Electromedical & Electrotherapeutic ApparatusUSD

77.87-1.13 (-1.43%)

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

Expiration date

Expiration: Oct 23, 2026
Days to expiration: 12
Share price: $77.87
Put/call ratio (OI): 1.38
Put/call ratio (volume): 0.75
Open interest (C / P): 105 / 145

TMDX options summary

The TMDX options chain for the October 23, 2026 expiration lists 22 call and 17 put contracts, with 12 days until expiration. Open interest stands at 105 calls and 145 puts, a put/call ratio of 1.38, which is more bearish, with puts outnumbering calls. The most open interest sits at the $95.00 call (31 contracts) and the $83.00 put (36 contracts).

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

TMDX options chain · October 23, 2026

TMDX 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
—	—	—	—	—	—	70.00	0.10	2.65	0.65	75.3%	8	10
—	—	—	—	—	—	72.00	0.00	1.75	1.12	51.8%	5	2
—	—	—	—	—	—	73.00	0.00	2.50	1.42	54.5%	1	11
—	—	—	—	—	—	74.00	0.20	2.00	1.55	63.2%	13	22
—	—	—	—	—	—	75.00	—	—	0.90	—	—	—
3	3	55.8%	4.70	2.90	5.60	76.00	0.20	3.80	2.00	80.8%	4	3
4	1	60.0%	5.25	2.30	5.60	77.00	1.15	3.90	2.05	50.4%	2	5
TMDX $77.87
—	—	—	6.90	—	—	78.00	—	—	2.30	—	—	—
—	—	—	—	—	—	79.00	3.10	5.10	3.60	59.4%	1	0
4	2	58.3%	3.00	1.10	3.90	80.00	2.95	5.80	4.00	53.8%	1	16
—	—	—	—	—	—	81.00	—	—	2.60	—	—	—
12	10	63.0%	2.16	0.55	3.60	82.00	4.30	7.10	5.55	53.6%	1	3
—	—	—	3.76	—	—	83.00	5.00	7.80	4.00	52.9%	39	36
2	2	68.3%	1.35	0.00	3.10	85.00	6.60	9.30	4.25	52.2%	2	31
5	4	69.7%	1.55	0.00	2.80	86.00	7.40	10.10	4.37	51.1%	—	1
3	1	71.9%	1.87	0.00	2.60	87.00	—	—	—	—	—	—
9	60	60.2%	0.55	0.40	0.95	88.00	9.10	11.80	5.15	84.3%	1	4
2	1	77.7%	1.75	0.00	2.40	89.00	—	—	—	—	—	—
10	3	68.8%	0.30	0.00	1.45	90.00	—	—	—	—	—	—
2	2	82.1%	0.70	0.00	2.15	91.00	—	—	—	—	—	—
3	—	83.7%	3.50	0.00	2.00	92.00	—	—	—	—	—	—
0	4	75.8%	0.76	0.00	1.25	93.00	—	—	—	—	—	—
5	4	94.1%	0.80	0.00	2.25	94.00	14.10	17.80	16.25	108.0%	1	1
31	1	98.2%	0.45	0.10	2.20	95.00	—	—	—	—	—	—
1	1	100.1%	1.35	0.00	2.20	96.00	—	—	—	—	—	—
5	4	85.2%	0.50	0.00	1.10	97.00	—	—	—	—	—	—
3	1	105.8%	2.11	0.00	2.15	98.00	—	—	—	—	—	—
1	1	108.8%	1.70	0.00	2.15	99.00	—	—	—	—	—	—
—	—	—	0.53	—	—	100.00	—	—	—	—	—	—

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 TMDX put/call ratio?

For the October 23, 2026 expiration, the TMDX put/call ratio based on open interest is 1.38 (145 puts vs 105 calls), and 0.75 based on today's volume. A ratio above 1 means more puts than calls.

How many TMDX option expiration dates are there?

TMDX has 11 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

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.