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MPWR · Monolithic Power Systems, Inc.

$1,273.25 -8.76 (-0.68%)
Market Cap
$62.99B
Shares
49.13M

Options Chain

15-min delayed Underlying $1,273.25 · today Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 224 contracts
Put / call OI
0.96
Balanced positioning
Open interest
3,282
contracts outstanding
Volume
659
traded today
Max pain
$1,400.00
$126.75 above spot
ATM implied vol
91.1%
market's expected move

Open interest by strike · near the money

Calls Puts

Chain

Click any strike for greeks, breakeven and the calculator
OI Vol IV Δ Last Strike Last Δ IV Vol OI
1 1 141% 0.971 $594.00 $2.41 -0.018 125.5% 1 14
0 1 138.4% 0.97 $630.00 $3.00 -0.019 124.7% 10 11
1 1 135% 0.97 $722.00 $3.06 -0.02 123.8% 1 4
2 1 117.8% 0.981 $566.00 $3.40 -0.04 144.5% 1 2
0 122.3% 0.975 $4.86 -0.017 112.2% 2 3
1 1 118.2% 0.976 $556.00 $4.85 -0.017 109.2% 10 10
1 1 115% 0.976 $588.00 $4.20 -0.018 106.9% 1 1
2 2 0.1% 1 $578.00 $6.00 -0.018 104.8% 1 1
0 1 115.2% 0.969 $501.80 -0.035 119.7% 0
0 5 131.9% 0.951 $491.90 -0.05 132.6% 0
2 2 108.2% 0.97 $531.10 $4.10 -0.046 124.6% 4 18
4 2 110.1% 0.964 $554.00 -0.051 126% 0
0 105% 0.967 $10.10 -0.042 113% 1 1
0 106% 0.962 $10.81 -0.056 122.4% 10 11
0 105.2% 0.959 $5.52 -0.054 117% 4 17
1 1 105.1% 0.956 $504.00 $6.05 -0.059 116.7% 2 18
0 106.8% 0.95 -0.06 114% 0
0 106.5% 0.946 $18.00 -0.058 109.2% 1 1
1 1 106.7% 0.94 $454.40 $9.20 -0.063 108.7% 1 1
0 115.4% 0.921 $11.00 -0.064 105.9% 2 2
2 1 104.8% 0.931 $454.00 $13.70 -0.066 103.5% 5 23
0 104.4% 0.926 $13.72 -0.072 103.4% 4 4
0 105% 0.919 $12.17 -0.076 102% 1 3
0 103.4% 0.915 $20.90 -0.08 100.6% 1 9
1 1 104.1% 0.908 $429.90 $11.93 -0.085 99.6% 1 48
0 110.5% 0.892 $21.68 -0.089 98.7% 1 8
1 1 104.1% 0.896 $424.00 $10.20 -0.096 99.1% 1 6
0 103.6% 0.889 $17.90 -0.107 101.7% 1 1
0 98.1% 0.892 $19.25 -0.109 98.8% 1 13
2 2 105.1% 0.869 $440.95 $22.10 -0.117 98.1% 2 4
3 3 105.6% 0.859 $334.00 $24.00 -0.129 99.3% 22 67
3 2 99.7% 0.852 $289.40 $22.01 -0.138 94.8% 3 21
0 98.5% 0.836 $28.00 -0.158 95.5% 3 16
2 1 94% 0.826 $257.47 $30.74 -0.177 95.6% 5 71
4 1 98% 0.799 $274.59 $40.55 -0.197 96% 2 23
1 1 98.9% 0.774 $280.00 $36.05 -0.218 94.5% 4 111
12 9 92.5% 0.761 $243.85 $41.60 -0.239 92.5% 6 14
9 9 95% 0.734 $231.35 $66.60 -0.263 92.6% 1 112
3 2 94.8% 0.71 $192.00 $57.00 -0.285 90.6% 3 28
5 2 94.8% 0.686 $214.30 $58.55 -0.311 92% 2 15
41 2 91.7% 0.662 $161.54 $78.20 -0.338 91.9% 1 31
3 2 92.1% 0.635 $241.05 $71.06 -0.364 90.5% 6 23
5 2 92.3% 0.609 $230.50 $87.76 -0.391 88.5% 1 37
11 2 91.7% 0.582 $149.00 $98.80 -0.419 89.3% 17 80
9 2 92% 0.555 $134.92 $89.60 -0.446 90.2% 4 24
90 1 90.4% 0.528 $123.11 $118.90 -0.473 89.2% 14 50
31 5 88.6% 0.5 $119.36 $113.90 -0.5 89.3% 1 75
13 1 88.3% 0.473 $97.88 $131.50 -0.529 87.7% 14 39
41 2 89.3% 0.448 $85.90 $167.00 -0.556 87.4% 1 19
20 4 89.4% 0.421 $103.66 $153.00 -0.583 87.5% 6 93
273 4 89.2% 0.396 $81.70 $154.30 -0.609 87.4% 1 20
110 7 89.2% 0.384 $94.55 $149.30 -0.615 89.9% 13 11
10 3 87.1% 0.368 $65.05 $198.80 -0.634 86.6% 1 88
8 2 88.3% 0.36 $80.80 $190.00 -0.648 85.8% 6 8
8 1 88.1% 0.348 $63.37 $167.71 -0.658 86.5% 1 15
5 1 87.5% 0.335 $55.70 $181.50 -0.67 86.2% 1 69
8 2 88.2% 0.326 $92.05 $180.32 -0.68 86.6% 1 5
6 3 87.6% 0.313 $52.00 $185.70 -0.695 85.7% 1 3
14 1 88.4% 0.304 $114.10 $208.50 -0.704 86.6% 24 12
4 1 88.8% 0.294 $108.70 $244.03 -0.715 86.8% 1 7
23 9 88.4% 0.281 $51.70 $211.55 -0.724 87.4% 2 10
3 1 88.2% 0.269 $66.20 $227.40 -0.727 89.9% 6 6
17 17 89.8% 0.265 $152.80 $210.20 -0.744 87.6% 16 17
3 1 89.1% 0.254 $69.26 $273.13 -0.753 87.3% 1 36
15 1 89.3% 0.247 $84.06 $313.90 -0.756 89% 1 1
17 1 88.4% 0.236 $40.10 $245.90 -0.774 86.2% 2 5
14 2 88.9% 0.229 $34.59 -0.781 86.4% 0
4 3 88.6% 0.22 $65.60 $312.70 -0.766 93.9% 1 1
240 3 88.6% 0.211 $28.40 -0.797 87% 0
13 13 87.9% 0.201 $77.56 $275.50 -0.813 84.9% 63 63
94 4 89.4% 0.198 $31.00 $280.90 -0.814 86.9% 1 2
2 2 89.4% 0.189 $23.90 $337.30 -0.822 87.1% 1 1
12 1 90.5% 0.186 $41.19 $327.30 -0.829 87.4% 5 5
1 2 89.1% 0.172 $58.70 -0.832 88.8% 0
5 2 91.7% 0.174 $40.05 -0.845 87.6% 0
11 1 89.7% 0.159 $65.00 -0.848 88.5% 0
61 5 90.6% 0.156 $29.15 $328.90 -0.851 89.1% 1 1
1 2 91.9% 0.154 $53.20 -0.853 90.5% 0
3 1 92.2% 0.15 $50.00 -0.866 87.8% 0
21 2 89.5% 0.137 $20.22 $352.90 -0.862 90.8% 1 1
85 1 91.9% 0.139 $20.00 $359.15 -0.878 87.5% 15 15
10 6 91.8% 0.128 $30.75 -0.867 94.3% 0
6 10 90.5% 0.114 $40.70 $402.00 -0.897 88.4% 3 3
14 1 91.2% 0.106 $39.10 -0.929 81.3% 0
7 2 90.7% 0.094 $35.19 -0.912 90.1% 0
21 2 95.2% 0.099 $13.00 -0.921 90.1% 0
43 37 93.3% 0.084 $25.90 $518.80 -0.925 90.8% 1 1
7 5 95.9% 0.084 $18.55 $510.00 -0.936 88.9% 1 1
8 1 97.9% 0.083 $19.10 -0.943 88.6% 0
2 4 98% 0.078 $23.30 $572.00 -0.948 89.1% 1 1
28 4 91.6% 0.058 $14.40 $628.00 -0.995 69.7% 1 0
1 2 97.2% 0.065 $13.50 -0.955 91% 0
0 105.5% 0.078 -0.957 92.6% 0
3 4 107.2% 0.077 $19.85 0
2 4 103.7% 0.064 $18.70 $586.60 -0.968 91.8% 1 1
6 1 98.5% 0.047 $5.00 $711.70 -0.977 87.9% 1 1
1 1 110.5% 0.069 $41.00 $731.50 -0.987 84.1% 1 1
1 1 112.6% 0.069 $11.30 -0.975 92.6% 0
0 113.4% 0.066 -0.976 94.2% 0
15 5 106% 0.046 $2.85 -0.977 94.9% 0
3 1 100.2% 0.034 $9.50 -0.979 95.9% 0
56 4 104.3% 0.037 $3.00 -0.982 95.4% 0
0 95.5% 0.022 $806.00 -0.984 96.3% 1 2
0 95.1% 0.019 $871.20 -0.988 95.5% 1 3
0 99.3% 0.023 -0.995 91.4% 0
3 2 97.1% 0.017 $7.00 $911.10 -0.988 98.5% 3 3
5 5 97.5% 0.016 $7.10 $900.00 2 2
1 1 98.7% 0.016 $4.40 -0.965 117.3% 0
1 1 98.9% 0.015 $4.10 $906.00 1 1
2 2 100.1% 0.015 $4.39 -0.979 110.6% 0
2 1 101.3% 0.015 $5.90 $1,000.00 -0.978 112.6% 1 1
8 2 108.6% 0.02 $1.50 $1,048.00 2 1
About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. The 25 strikes around the money are shown by default — switch to "All 112" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1280452 CUSIP 609839105 13F (30d) 408 filings 380 filers Visit website Investor relations