Monolithic Power Systems (MPWR) Options Chain

NASDAQ: MPWRTechnologySemiconductorsUSD

1,369.80-56.18 (-3.94%)

At close: Oct 8, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Oct 16, 2026
Days to expiration: 8
Share price: $1,369.80
Put/call ratio (OI): 0.70
Put/call ratio (volume): 0.81
ATM implied volatility: 54.4%
Expected move: ±$110.25
Open interest (C / P): 2.42K / 1.68K

MPWR options summary

The MPWR options chain for the October 16, 2026 expiration lists 63 call and 52 put contracts, with 8 days until expiration. Open interest stands at 2,415 calls and 1,683 puts, a put/call ratio of 0.70, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1,370.00 strike is 54.4%, which implies the market expects a move of about ±$110.25 (8.0%) in Monolithic Power Systems stock by expiration.

The most open interest sits at the $1,350.00 call (275 contracts) and the $1,060.00 put (157 contracts).

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

MPWR options chain · October 16, 2026

MPWR 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
—	—	—	—	—	—	860.00	0.00	4.90	0.97	160.7%	3	4
1	—	134.6%	481.30	494.40	506.90	870.00	—	—	—	—	—	—
2	2	156.7%	482.88	485.60	499.50	880.00	—	—	—	—	—	—
1	—	137.1%	463.78	475.70	486.60	890.00	—	—	—	—	—	—
—	—	—	—	—	—	900.00	0.00	4.90	4.02	146.9%	1	17
—	—	—	—	—	—	910.00	0.00	4.90	0.44	143.6%	1	11
0	—	131.0%	236.25	443.30	459.50	920.00	0.00	4.90	0.88	140.2%	1	14
—	—	—	—	—	—	940.00	0.00	4.90	2.01	133.6%	1	12
4	—	123.4%	276.27	413.30	429.80	950.00	0.00	4.90	4.22	130.4%	6	6
—	—	—	—	—	—	960.00	0.00	4.90	2.84	127.2%	1	1
—	—	—	—	—	—	970.00	0.00	4.90	2.29	124.0%	—	1
—	—	—	—	—	—	980.00	0.05	3.60	0.25	115.0%	6	27
—	—	—	—	—	—	990.00	0.00	4.90	1.20	117.6%	5	5
—	—	—	—	—	—	1,000.00	0.05	4.90	0.52	114.7%	4	30
3	2	107.1%	345.53	344.60	359.60	1,020.00	0.00	2.75	1.22	98.5%	3	22
0	1	105.4%	324.45	326.00	339.40	1,040.00	0.00	4.90	0.05	102.3%	7	28
3	2	92.0%	316.30	303.60	319.80	1,060.00	0.00	4.90	1.83	96.2%	4	157
0	—	88.5%	110.30	283.70	300.30	1,080.00	0.00	4.90	0.43	90.3%	20	36
5	1	84.4%	102.00	264.00	280.50	1,100.00	0.00	4.90	0.82	84.5%	1	157
4	1	78.6%	115.15	243.90	260.60	1,120.00	0.00	4.90	0.15	78.6%	1	110
13	—	74.0%	75.31	224.10	240.80	1,140.00	0.00	4.90	0.60	72.9%	6	33
25	4	70.2%	199.22	204.50	221.20	1,160.00	0.00	4.90	0.76	67.2%	19	92
9	3	66.1%	134.09	197.10	208.10	1,170.00	0.05	4.90	3.97	64.4%	20	28
12	2	71.0%	61.08	187.40	201.60	1,180.00	0.05	2.75	1.05	55.3%	1	73
39	—	69.1%	47.50	177.70	192.00	1,190.00	0.25	8.20	1.56	66.2%	12	48
258	3	59.3%	229.50	167.30	178.80	1,200.00	0.05	4.90	2.40	55.9%	33	93
7	1	66.1%	147.31	158.70	173.20	1,210.00	0.50	7.90	2.95	59.9%	5	30
40	6	63.0%	188.80	149.40	162.60	1,220.00	0.10	10.20	1.20	59.9%	1	102
4	4	58.4%	169.22	140.10	151.00	1,230.00	2.05	15.00	1.95	65.7%	2	49
44	2	55.5%	135.14	129.30	142.00	1,240.00	2.10	8.40	4.62	53.8%	1	13
5	1	55.8%	188.01	121.50	132.70	1,250.00	3.30	8.70	7.66	52.6%	5	31
17	6	55.3%	122.64	112.70	124.10	1,260.00	5.40	15.00	8.50	58.6%	27	67
10	5	53.1%	110.00	104.20	114.00	1,270.00	2.80	18.70	35.35	56.0%	4	6
18	2	52.0%	162.72	94.60	106.20	1,280.00	5.70	19.90	12.90	56.0%	19	41
32	2	53.0%	82.20	88.00	98.20	1,290.00	10.70	22.00	14.70	58.0%	59	5
164	1	53.9%	152.00	80.20	92.20	1,300.00	12.40	23.70	15.94	56.5%	5	54
74	5	51.5%	72.50	71.70	83.10	1,310.00	15.30	23.90	16.55	54.4%	2	4
96	1	51.8%	116.92	64.90	76.60	1,320.00	15.60	28.00	24.31	53.0%	7	32
46	3	54.1%	64.84	60.20	71.70	1,330.00	19.00	32.00	16.88	53.3%	2	8
34	9	50.8%	50.68	52.50	62.00	1,340.00	23.40	33.60	16.15	52.1%	1	15
275	15	56.6%	50.00	44.70	56.00	1,350.00	26.80	40.00	27.00	53.0%	5	15
72	2	53.3%	45.10	42.10	54.00	1,360.00	31.70	44.00	35.70	52.8%	13	27
MPWR $1,369.80
11	1	57.0%	48.07	34.00	46.00	1,370.00	35.90	48.00	38.93	51.7%	1	2
23	13	57.8%	50.01	29.30	42.00	1,380.00	42.00	54.00	43.85	52.6%	11	27
29	1	58.2%	83.60	24.30	38.00	1,390.00	—	—	—	—	—	—
105	15	55.5%	26.50	21.00	31.90	1,400.00	53.40	63.20	58.10	50.7%	57	71
9	11	51.5%	52.40	18.30	32.00	1,410.00	59.70	71.70	36.86	51.9%	2	4
67	27	50.5%	30.96	16.40	26.00	1,420.00	63.80	78.00	51.32	59.3%	10	31
5	2	52.7%	20.00	13.80	26.00	1,430.00	71.80	85.20	39.89	50.4%	1	4
37	1	51.9%	29.20	9.70	23.80	1,440.00	79.40	92.70	47.87	50.6%	4	19
43	2	54.1%	12.74	11.00	20.70	1,450.00	88.30	99.60	58.97	50.8%	2	4
62	2	54.9%	11.03	8.50	19.90	1,460.00	—	—	—	—	—	—
99	84	55.2%	11.92	5.40	16.00	1,480.00	—	—	—	—	—	—
105	93	55.7%	5.30	0.95	15.20	1,500.00	128.50	142.00	83.71	63.2%	4	9
73	7	60.2%	5.80	4.10	11.30	1,520.00	147.50	159.40	189.20	63.6%	—	2
78	1	63.5%	8.73	2.65	11.30	1,540.00	—	—	—	—	—	—
50	32	64.0%	3.90	1.55	9.20	1,560.00	—	—	—	—	—	—
12	2	63.4%	15.00	0.90	6.80	1,580.00	—	—	—	—	—	—
27	6	66.4%	1.85	0.30	6.80	1,600.00	—	—	—	—	—	—
19	41	66.1%	1.80	0.05	5.10	1,620.00	—	—	—	—	—	—
38	1	69.1%	1.55	0.05	4.80	1,640.00	—	—	—	—	—	—
59	15	73.0%	2.46	0.00	4.90	1,660.00	281.30	297.10	295.90	90.6%	—	6
3	3	76.6%	6.00	0.00	4.90	1,680.00	—	—	—	—	—	—
6	1	80.1%	4.50	0.00	4.90	1,700.00	322.60	336.70	411.30	97.5%	—	0
32	1	83.7%	0.80	0.05	4.90	1,720.00	—	—	—	—	—	—
50	29	72.6%	1.17	0.00	1.50	1,740.00	—	—	—	—	—	—
24	2	90.0%	1.56	0.00	4.80	1,760.00	384.00	396.70	410.30	62.8%	—	0
5	1	93.6%	0.73	0.00	4.90	1,780.00	—	—	—	—	—	—
4	5	96.8%	2.18	0.00	4.90	1,800.00	—	—	—	—	—	—
5	1	100.0%	0.50	0.00	4.90	1,820.00	—	—	—	—	—	—
1	2	106.2%	1.22	0.00	4.90	1,860.00	—	—	—	—	—	—
17	13	95.7%	0.18	0.00	2.00	1,880.00	—	—	—	—	—	—

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 MPWR put/call ratio?

For the October 16, 2026 expiration, the MPWR put/call ratio based on open interest is 0.70 (1,683 puts vs 2,415 calls), and 0.81 based on today's volume. A ratio above 1 means more puts than calls.

What is MPWR's implied volatility?

At-the-money implied volatility for MPWR options expiring October 16, 2026 is about 54.4%, an annualized estimate of how much the market expects Monolithic Power Systems stock to move.

How many MPWR option expiration dates are there?

MPWR has 10 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.