DexCom (DXCM) Options Chain

NASDAQ: DXCMHealth CareMedical/Dental InstrumentsUSD

84.11-0.30 (-0.36%)

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

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 5
Share price: $84.11
Put/call ratio (OI): 1.24
Put/call ratio (volume): 0.60
ATM implied volatility: 37.8%
Expected move: ±$3.72
Open interest (C / P): 1.58K / 1.96K

DXCM options summary

The DXCM options chain for the October 16, 2026 expiration lists 25 call and 19 put contracts, with 5 days until expiration. Open interest stands at 1,583 calls and 1,964 puts, a put/call ratio of 1.24, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $84.00 strike is 37.8%, which implies the market expects a move of about ±$3.72 (4.4%) in DexCom stock by expiration.

The most open interest sits at the $95.00 call (539 contracts) and the $85.00 put (1.22K contracts).

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

DXCM options chain · October 16, 2026

DXCM 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
3	10	218.4%	18.82	17.10	21.10	65.00	0.00	1.35	0.10	155.3%	—	8
5	3	148.1%	16.27	12.40	15.40	70.00	0.00	0.95	0.07	109.1%	13	206
4	1	56.5%	15.00	7.40	11.10	75.00	0.00	0.25	0.15	55.3%	1	32
1	10	114.7%	9.20	5.30	9.10	77.00	0.00	0.25	0.57	53.0%	7	1
1	10	56.0%	8.25	5.10	8.00	78.00	—	—	—	—	—	—
—	—	—	—	—	—	79.00	0.00	1.55	0.30	61.3%	4	74
20	20	87.9%	4.30	3.20	6.10	80.00	0.00	0.55	0.35	46.6%	7	200
—	—	—	—	—	—	81.00	0.00	1.60	0.55	68.6%	1	8
—	—	—	—	—	—	82.00	0.35	1.75	0.72	62.9%	53	24
—	—	—	—	—	—	83.00	0.50	3.10	1.20	54.1%	3	12
14	29	35.9%	1.65	1.15	1.60	84.00	0.30	1.65	1.52	39.6%	12	10
DXCM $84.11
114	22	48.9%	0.75	0.00	1.70	85.00	1.50	4.00	1.99	52.7%	1	1,217
3	5	74.9%	0.60	0.05	2.40	86.00	0.75	4.60	2.88	82.2%	1	5
10	9	37.9%	0.50	0.00	0.60	87.00	1.45	5.40	3.55	86.4%	2	24
2	8	63.0%	0.55	0.00	1.25	88.00	3.20	6.30	5.20	52.3%	2	2
7	110	49.1%	0.10	0.05	0.55	89.00	3.50	6.80	5.00	87.6%	25	27
296	10	40.2%	0.19	0.05	0.20	90.00	4.40	8.00	6.12	100.0%	4	113
74	5	54.6%	0.13	0.05	0.40	91.00	6.10	8.40	5.30	52.9%	1	1
13	1	53.7%	0.35	0.00	0.55	92.00	—	—	—	—	—	—
2	2	68.0%	0.35	0.00	0.95	93.00	—	—	—	—	—	—
539	1	77.6%	0.15	0.00	0.95	95.00	9.00	12.90	8.30	129.8%	25	0
6	5	91.1%	0.12	0.00	1.35	96.00	—	—	—	—	—	—
8	1	95.9%	0.10	0.00	1.35	97.00	—	—	—	—	—	—
30	4	104.8%	0.17	0.00	1.55	98.00	—	—	—	—	—	—
372	5	101.0%	0.05	0.00	1.00	100.00	13.70	17.80	12.34	154.5%	1	0
1	—	109.1%	0.25	0.00	1.15	101.00	—	—	—	—	—	—
31	1	131.7%	0.21	0.00	1.40	105.00	—	—	—	—	—	—
26	1	160.9%	0.50	0.00	1.80	110.00	—	—	—	—	—	—
1	—	161.1%	0.20	0.00	1.15	115.00	—	—	—	—	—	—

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 DXCM put/call ratio?

For the October 16, 2026 expiration, the DXCM put/call ratio based on open interest is 1.24 (1,964 puts vs 1,583 calls), and 0.60 based on today's volume. A ratio above 1 means more puts than calls.

What is DXCM's implied volatility?

At-the-money implied volatility for DXCM options expiring October 16, 2026 is about 37.8%, an annualized estimate of how much the market expects DexCom stock to move.

How many DXCM option expiration dates are there?

DXCM has 13 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.