Teradyne (TER) Options Chain

NASDAQ: TERIndustrialsElectrical ProductsUSD

402.68+3.96 (+0.99%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 68
Share price: $402.68
Put/call ratio (OI): 3.25
Put/call ratio (volume): 1.58
ATM implied volatility: 68.3%
Expected move: ±$118.63
Open interest (C / P): 464 / 1.51K

TER options summary

The TER options chain for the December 18, 2026 expiration lists 27 call and 29 put contracts, with 68 days until expiration. Open interest stands at 464 calls and 1,508 puts, a put/call ratio of 3.25, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $400.00 strike is 68.3%, which implies the market expects a move of about ±$118.63 (29.5%) in Teradyne stock by expiration.

The most open interest sits at the $440.00 call (62 contracts) and the $300.00 put (470 contracts).

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

TER options chain · December 18, 2026

TER 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
—	—	—	—	—	—	190.00	0.00	0.95	0.38	79.0%	1	28
—	—	—	—	—	—	195.00	0.05	0.95	0.37	77.0%	2	95
—	—	—	—	—	—	200.00	0.10	0.85	0.37	74.0%	1	3
—	—	—	—	—	—	210.00	0.00	1.45	0.58	73.8%	2	24
—	—	—	—	—	—	220.00	0.10	1.30	0.94	68.7%	9	53
—	—	—	—	—	—	230.00	0.70	1.70	1.17	70.2%	9	57
—	—	—	—	—	—	240.00	0.80	2.60	2.33	69.9%	2	5
—	—	—	—	—	—	250.00	1.30	3.50	2.85	70.0%	1	78
—	—	—	—	—	—	260.00	2.30	3.90	2.70	69.0%	35	188
1	1	72.5%	120.00	135.00	140.40	270.00	3.20	5.10	3.56	68.9%	30	44
—	—	—	—	—	—	280.00	3.50	7.30	5.10	68.7%	10	19
1	—	73.8%	77.30	117.50	125.20	290.00	5.90	7.30	6.50	67.5%	2	31
1	2	70.7%	114.00	109.40	115.10	300.00	7.50	9.10	8.20	67.2%	2	470
—	—	—	—	—	—	310.00	8.90	12.50	10.20	68.0%	1	27
1	1	70.1%	141.29	93.80	99.90	320.00	9.90	15.30	14.00	66.7%	54	96
2	2	69.8%	83.80	86.50	92.70	330.00	11.90	17.00	11.29	64.8%	11	72
8	1	69.8%	78.80	79.90	85.80	340.00	15.60	22.30	17.85	67.6%	1	59
10	2	69.5%	76.30	73.60	79.00	350.00	18.00	25.60	19.60	66.4%	3	12
30	1	69.2%	105.80	67.10	73.00	360.00	22.00	29.30	27.75	66.4%	12	35
27	2	69.9%	60.00	61.60	68.00	370.00	26.10	33.40	32.13	66.2%	7	28
15	1	70.3%	81.96	56.30	63.10	380.00	30.50	38.00	35.70	66.1%	4	33
23	11	70.6%	49.97	51.70	58.20	390.00	34.50	40.90	43.00	63.9%	2	16
18	1	70.7%	56.65	47.50	53.20	400.00	40.40	48.30	43.46	65.8%	3	14
TER $402.68
21	4	69.5%	50.00	42.50	48.00	410.00	45.60	51.80	47.30	64.0%	3	8
15	1	69.0%	41.80	37.00	44.70	420.00	—	—	38.70	—	—	—
6	1	69.6%	56.05	34.80	40.40	430.00	—	—	65.51	—	—	—
62	48	69.1%	36.20	29.40	38.20	440.00	65.70	71.60	65.00	65.5%	5	13
13	4	70.3%	32.30	28.60	34.30	450.00	—	—	60.70	—	—	—
17	10	69.4%	26.20	24.80	31.20	460.00	—	—	—	—	—	—
5	1	69.1%	26.50	21.80	28.50	470.00	—	—	68.30	—	—	—
56	3	69.2%	24.58	19.40	26.10	480.00	—	—	—	—	—	—
11	18	69.3%	23.30	17.20	24.00	490.00	—	—	—	—	—	—
37	5	69.4%	20.00	15.30	22.00	500.00	—	—	—	—	—	—
16	10	68.3%	15.80	12.10	20.30	510.00	—	—	—	—	—	—
39	1	67.3%	15.76	11.90	16.10	520.00	—	—	—	—	—	—
5	1	69.7%	15.30	8.90	15.90	540.00	—	—	—	—	—	—
15	1	70.1%	11.20	6.70	13.70	560.00	—	—	—	—	—	—
9	1	71.3%	16.10	6.20	11.30	580.00	—	—	—	—	—	—

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 TER put/call ratio?

For the December 18, 2026 expiration, the TER put/call ratio based on open interest is 3.25 (1,508 puts vs 464 calls), and 1.58 based on today's volume. A ratio above 1 means more puts than calls.

What is TER's implied volatility?

At-the-money implied volatility for TER options expiring December 18, 2026 is about 68.3%, an annualized estimate of how much the market expects Teradyne stock to move.

How many TER option expiration dates are there?

TER has 12 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.