Silicon Motion Technology (SIMO) Options Chain

NASDAQ: SIMOTechnologySemiconductorsUSD

263.90+2.01 (+0.77%)

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

Expiration date

Expiration: Nov 20, 2026
Days to expiration: 40
Share price: $263.90
Put/call ratio (OI): 1.72
Put/call ratio (volume): 1.48
ATM implied volatility: 85.4%
Expected move: ±$74.61
Open interest (C / P): 600 / 1.03K

SIMO options summary

The SIMO options chain for the November 20, 2026 expiration lists 18 call and 24 put contracts, with 40 days until expiration. Open interest stands at 600 calls and 1,032 puts, a put/call ratio of 1.72, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $260.00 strike is 85.4%, which implies the market expects a move of about ±$74.61 (28.3%) in Silicon Motion Technology stock by expiration.

The most open interest sits at the $270.00 call (221 contracts) and the $185.00 put (281 contracts).

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

SIMO options chain · November 20, 2026

SIMO 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
—	—	—	—	—	—	145.00	0.30	1.75	0.85	101.3%	1	21
—	—	—	—	—	—	150.00	0.05	3.30	1.77	106.2%	2	2
—	—	—	—	—	—	155.00	0.40	3.70	1.20	105.5%	1	11
1	—	90.5%	115.30	97.00	104.10	165.00	0.05	4.70	2.15	98.5%	1	19
—	—	—	—	—	—	170.00	1.15	2.75	2.67	89.0%	1	8
—	—	—	—	—	—	180.00	0.85	3.80	3.00	83.0%	18	34
—	—	—	—	—	—	185.00	2.40	4.50	3.98	87.0%	4	281
—	—	—	—	—	—	190.00	3.10	5.20	4.92	86.6%	7	104
—	—	—	—	—	—	195.00	3.70	6.30	5.80	86.5%	3	8
—	—	—	—	—	—	200.00	4.90	7.20	6.65	86.8%	6	33
—	—	—	—	—	—	210.00	6.20	10.30	9.25	86.2%	13	228
1	1	88.0%	73.09	52.00	59.00	220.00	9.30	12.00	12.10	84.4%	109	70
—	—	—	—	—	—	230.00	11.10	17.40	15.50	85.2%	27	36
7	4	87.5%	58.97	40.20	45.50	240.00	16.60	19.20	20.00	84.2%	1	40
41	2	86.9%	49.70	34.80	39.60	250.00	19.60	25.00	24.52	83.9%	11	23
8	3	87.0%	31.58	29.30	35.40	260.00	26.10	28.60	30.14	83.8%	3	34
SIMO $263.90
221	1	88.3%	28.00	25.80	31.10	270.00	29.20	34.30	35.85	80.4%	2	28
27	3	85.0%	25.15	21.60	25.20	280.00	37.40	40.20	31.54	83.0%	2	16
51	1	86.0%	19.87	18.60	22.10	290.00	42.00	47.30	36.98	80.8%	2	23
25	7	81.3%	16.68	13.00	18.60	300.00	49.20	54.90	40.90	81.8%	2	5
15	47	84.5%	13.20	12.90	15.70	310.00	57.20	63.30	61.10	84.0%	1	2
50	2	86.0%	11.69	10.40	14.70	320.00	64.70	72.30	68.30	85.5%	1	2
53	63	85.8%	9.50	9.20	11.90	330.00	73.10	80.40	76.00	86.2%	—	3
13	4	85.6%	9.44	6.80	10.90	340.00	82.10	88.60	101.70	87.1%	—	1
15	2	86.3%	7.15	6.60	8.60	350.00	—	—	—	—	—	—
11	1	85.9%	8.38	4.60	8.00	360.00	—	—	—	—	—	—
24	4	86.0%	6.03	4.20	6.40	370.00	—	—	—	—	—	—
3	1	89.2%	6.66	0.90	6.30	400.00	—	—	—	—	—	—
34	1	89.3%	5.00	1.70	4.40	410.00	—	—	—	—	—	—

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 SIMO put/call ratio?

For the November 20, 2026 expiration, the SIMO put/call ratio based on open interest is 1.72 (1,032 puts vs 600 calls), and 1.48 based on today's volume. A ratio above 1 means more puts than calls.

What is SIMO's implied volatility?

At-the-money implied volatility for SIMO options expiring November 20, 2026 is about 85.4%, an annualized estimate of how much the market expects Silicon Motion Technology stock to move.

How many SIMO option expiration dates are there?

SIMO has 8 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.