Quest Diagnostics (DGX) Options Chain

NYSE: DGXHealth CareMedical SpecialitiesUSD

230.97+0.16 (+0.07%)

At close: Oct 9, 4:01 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $230.97
Put/call ratio (OI): 0.32
Put/call ratio (volume): 0.51
ATM implied volatility: 32.4%
Expected move: ±$24.80
Open interest (C / P): 2.80K / 886

DGX options summary

The DGX options chain for the November 20, 2026 expiration lists 23 call and 21 put contracts, with 40 days until expiration. Open interest stands at 2,797 calls and 886 puts, a put/call ratio of 0.32, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $230.00 strike is 32.4%, which implies the market expects a move of about ±$24.80 (10.7%) in Quest Diagnostics stock by expiration.

The most open interest sits at the $270.00 call (683 contracts) and the $220.00 put (279 contracts).

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

DGX options chain · November 20, 2026

DGX 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
—	—	—	—	—	—	125.00	0.00	2.15	0.20	107.1%	2	14
10	—	—	66.62	67.50	70.20	130.00	—	—	—	—	—	—
—	—	—	—	—	—	135.00	0.00	2.15	0.18	95.4%	1	0
4	4	—	50.97	63.60	66.50	140.00	0.20	1.75	1.54	88.1%	—	1
—	—	—	—	—	—	145.00	0.00	0.65	0.25	68.4%	2	4
8	2	64.1%	77.80	79.70	82.90	150.00	0.00	0.00	1.08	25.0%	1	0
1	1	164.0%	60.50	88.00	91.80	155.00	1.10	1.90	1.08	79.8%	1	2
13	1	115.7%	74.70	76.20	79.30	160.00	0.00	0.00	3.05	25.0%	1	0
1	—	—	41.20	36.20	39.00	165.00	0.00	0.00	3.50	25.0%	1	0
6	5	55.7%	62.17	59.80	63.70	170.00	0.00	0.75	2.35	55.3%	2	14
11	5	133.3%	41.81	68.60	72.20	175.00	0.00	2.35	1.05	56.2%	1	6
9	10	126.5%	51.94	64.10	67.20	180.00	0.00	2.50	0.75	52.4%	1	17
6	2	119.5%	34.00	59.30	62.40	185.00	0.00	2.60	1.20	58.5%	10	75
22	2	50.8%	58.70	40.30	43.20	190.00	0.00	1.00	0.75	40.9%	1	68
7	1	49.0%	41.50	35.70	38.70	195.00	0.40	1.15	0.80	38.0%	1	11
22	4	46.0%	34.95	31.00	34.10	200.00	0.35	1.60	1.25	36.9%	2	35
84	1	39.9%	23.55	22.30	25.10	210.00	0.80	4.00	2.45	39.4%	1	56
82	1	35.3%	13.69	14.80	17.00	220.00	3.00	5.20	4.50	32.3%	1	279
521	3	33.5%	9.70	8.50	10.80	230.00	7.60	9.20	8.10	31.4%	12	82
DGX $230.97
299	23	32.7%	5.96	5.10	6.40	240.00	12.80	15.90	14.15	34.3%	3	57
313	10	35.8%	3.10	1.30	4.40	250.00	20.00	22.00	21.10	30.0%	2	93
381	1	40.0%	1.40	1.15	3.40	260.00	—	—	—	—	—	—
683	5	32.7%	0.75	0.60	0.95	270.00	32.70	36.00	34.20	—	—	72
121	6	38.7%	1.25	0.05	1.00	280.00	—	—	—	—	—	—
193	3	38.2%	0.20	0.05	0.50	290.00	—	—	—	—	—	—
0	1	12.5%	0.50	0.00	0.00	300.00	—	—	—	—	—	—

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 DGX put/call ratio?

For the November 20, 2026 expiration, the DGX put/call ratio based on open interest is 0.32 (886 puts vs 2,797 calls), and 0.51 based on today's volume. A ratio above 1 means more puts than calls.

What is DGX's implied volatility?

At-the-money implied volatility for DGX options expiring November 20, 2026 is about 32.4%, an annualized estimate of how much the market expects Quest Diagnostics stock to move.

How many DGX option expiration dates are there?

DGX has 4 listed expiration dates, from Oct 16, 2026 to May 21, 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.