Silicon Motion Technology (SIMO) Options Chain

NASDAQ: SIMOTechnologySemiconductorsUSD

263.90+2.01 (+0.77%)

At close: Oct 9, 3:59 PM ET · Delayed 15 min

Expiration date

Expiration: Jan 21, 2028
Days to expiration: 469
Share price: $263.90
Put/call ratio (OI): 0.17
Put/call ratio (volume): 0.25
ATM implied volatility: 77.3%
Expected move: ±$231.24
Open interest (C / P): 254 / 43

SIMO options summary

The SIMO options chain for the January 21, 2028 expiration lists 23 call and 9 put contracts, with 469 days until expiration. Open interest stands at 254 calls and 43 puts, a put/call ratio of 0.17, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $270.00 strike is 77.3%, which implies the market expects a move of about ±$231.24 (87.6%) in Silicon Motion Technology stock by expiration.

The most open interest sits at the $200.00 call (48 contracts) and the $125.00 put (11 contracts).

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

SIMO options chain · January 21, 2028

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
—	—	—	—	—	—	125.00	11.00	16.50	14.00	71.9%	10	11
16	5	81.6%	151.82	150.00	159.00	130.00	14.80	18.00	15.86	74.0%	12	8
5	3	81.7%	167.75	147.00	156.00	135.00	15.80	19.70	20.00	73.3%	1	1
11	4	81.2%	170.00	144.00	152.50	140.00	0.00	0.00	33.50	12.5%	—	0
—	—	—	—	—	—	145.00	17.10	23.70	23.66	71.7%	—	3
—	—	—	—	—	—	150.00	19.10	26.20	22.50	72.3%	3	6
—	—	—	—	—	—	165.00	26.20	31.60	33.25	72.3%	1	2
—	—	—	—	—	—	180.00	29.80	37.30	37.00	69.6%	—	10
48	2	78.7%	131.34	111.00	120.00	200.00	—	—	—	—	—	—
1	—	78.7%	128.50	102.00	112.00	220.00	50.00	57.00	61.82	68.9%	2	2
2	1	78.2%	119.13	98.00	107.00	230.00	—	—	—	—	—	—
5	1	77.1%	92.70	90.00	98.00	250.00	—	—	—	—	—	—
SIMO $263.90
6	2	77.3%	104.00	83.00	92.00	270.00	—	—	—	—	—	—
20	1	77.4%	100.96	80.00	89.00	280.00	—	—	—	—	—	—
12	10	76.0%	96.88	76.00	83.80	290.00	—	—	—	—	—	—
22	16	76.9%	98.01	73.00	83.00	300.00	—	—	—	—	—	—
1	—	75.7%	92.58	70.00	77.90	310.00	—	—	—	—	—	—
9	10	76.3%	91.82	67.00	77.00	320.00	—	—	—	—	—	—
11	10	76.7%	82.28	65.00	75.00	330.00	—	—	—	—	—	—
8	2	76.2%	79.50	62.00	72.00	340.00	—	—	—	—	—	—
12	16	76.5%	82.54	60.00	70.00	350.00	—	—	—	—	—	—
6	6	74.6%	80.02	57.00	64.20	360.00	—	—	—	—	—	—
3	6	75.9%	75.10	55.00	65.00	370.00	—	—	—	—	—	—
5	10	75.0%	72.88	53.80	60.00	380.00	—	—	—	—	—	—
20	3	74.5%	66.95	51.00	58.00	390.00	—	—	—	—	—	—
20	5	76.0%	54.73	49.70	59.00	400.00	—	—	—	—	—	—
8	2	74.2%	61.79	47.00	54.00	410.00	—	—	—	—	—	—
3	1	74.4%	49.00	46.00	52.00	420.00	—	—	—	—	—	—

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 January 21, 2028 expiration, the SIMO put/call ratio based on open interest is 0.17 (43 puts vs 254 calls), and 0.25 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 January 21, 2028 is about 77.3%, 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.