RadNet (RDNT) Options Chain

NASDAQ: RDNTHealth CareMedical SpecialitiesUSD

70.91+2.70 (+3.96%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 69
Share price: $70.91
Put/call ratio (OI): 0.56
Put/call ratio (volume): 0.80
ATM implied volatility: 61.5%
Expected move: ±$18.95
Open interest (C / P): 574 / 324

RDNT options summary

The RDNT options chain for the December 18, 2026 expiration lists 17 call and 13 put contracts, with 69 days until expiration. Open interest stands at 574 calls and 324 puts, a put/call ratio of 0.56, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $70.00 strike is 61.5%, which implies the market expects a move of about ±$18.95 (26.7%) in RadNet stock by expiration.

The most open interest sits at the $60.00 call (127 contracts) and the $65.00 put (168 contracts).

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

RDNT options chain · December 18, 2026

RDNT 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
2	2	224.2%	36.95	43.20	47.30	30.00	0.00	1.35	0.30	128.7%	1	11
1	1	96.4%	41.75	34.40	38.20	35.00	0.00	1.55	0.45	111.8%	1	6
0	—	92.6%	30.09	29.60	33.70	40.00	0.00	2.60	0.45	107.5%	1	7
1	1	—	17.70	18.20	21.90	45.00	0.00	2.90	0.50	92.6%	1	10
65	15	76.6%	21.03	20.40	24.40	50.00	0.00	2.55	1.00	72.8%	1	10
39	10	122.4%	19.11	21.80	23.40	55.00	0.85	3.30	1.80	69.2%	1	6
127	25	55.2%	12.80	11.40	14.90	60.00	0.70	3.80	2.10	55.3%	3	11
35	2	50.9%	9.00	7.70	11.10	65.00	1.95	4.80	3.50	62.9%	2	168
37	15	63.5%	6.43	4.60	8.20	70.00	3.30	6.80	5.70	59.5%	40	54
RDNT $70.91
77	2	60.8%	3.00	2.80	5.80	75.00	5.90	9.60	8.91	58.5%	20	23
83	3	59.1%	1.60	1.10	4.00	80.00	9.90	12.80	10.50	56.6%	2	13
60	2	57.1%	1.00	0.65	2.60	85.00	13.40	17.00	14.25	60.1%	1	5
11	1	56.8%	0.85	0.20	1.75	90.00	—	—	—	—	—	—
2	1	56.5%	0.60	0.00	1.15	95.00	—	—	—	—	—	—
29	1	59.5%	0.40	0.00	1.85	100.00	—	—	—	—	—	—
2	7	57.9%	0.25	0.00	1.10	105.00	—	—	—	—	—	—
3	5	62.3%	0.15	0.00	1.05	110.00	37.40	41.10	31.70	50.4%	—	0

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 RDNT put/call ratio?

For the December 18, 2026 expiration, the RDNT put/call ratio based on open interest is 0.56 (324 puts vs 574 calls), and 0.80 based on today's volume. A ratio above 1 means more puts than calls.

What is RDNT's implied volatility?

At-the-money implied volatility for RDNT options expiring December 18, 2026 is about 61.5%, an annualized estimate of how much the market expects RadNet stock to move.

How many RDNT option expiration dates are there?

RDNT has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 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.