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Monolithic Power Systems MPWR

US equityMarket cap rank #249Semiconductors
$1,337.16
−$18.32 (-1.35%)
Market open · Sep 24, 2:00 pm ET
After hours $1,348.01 -0.55%
Open$1,322.71
Prev close$1,355.47
Day range$1,313.09 – $1,349.64
Volume173.6K
Market cap$65.71B
P/E (TTM)81.6
Dividend yield0.53%

Average implied volatility across the listed chain right now: 50%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $1,330.00 $20.20 $21.10/$36.00 2 38 50%
16 Oct 2026 $1,320.00 $25.10 $22.40/$32.00 2 57 47%
16 Oct 2026 $1,340.00 $16.05 $16.80/$34.00 0 4 49%
16 Oct 2026 $1,310.00 $20.15 $24.20/$40.00 0 80 49%
16 Oct 2026 $1,350.00 $18.88 $16.50/$32.00 2 250 50%
16 Oct 2026 $1,300.00 $32.00 $28.20/$38.50 4 16 47%
16 Oct 2026 $1,360.00 $13.40 $14.40/$30.00 0 47 50%
16 Oct 2026 $1,290.00 $24.14 $30.00/$47.00 0 31 49%
16 Oct 2026 $1,370.00 $12.33 $14.10/$28.00 0 4 51%
16 Oct 2026 $1,280.00 $26.78 $32.70/$49.90 0 18 49%
16 Oct 2026 $1,380.00 $11.63 $12.90/$26.00 0 1 51%
16 Oct 2026 $1,270.00 $29.42 $37.40/$53.20 0 5 49%
16 Oct 2026 $1,390.00 $10.93 $8.40/$23.70 0 0 49%
16 Oct 2026 $1,260.00 $43.22 $41.10/$56.00 1 9 49%
16 Oct 2026 $1,400.00 $13.00 $9.30/$17.20 17 8 48%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $1,330.00 $175.49 $132.40/$141.40 0 0 50%
16 Oct 2026 $1,320.00 $166.82 $124.40/$134.50 0 13 50%
16 Oct 2026 $1,340.00 $184.16 $140.00/$152.00 0 1 51%
16 Oct 2026 $1,310.00 $158.15 $116.80/$129.10 0 0 50%
16 Oct 2026 $1,350.00 $192.84 $148.00/$160.00 0 0 51%
16 Oct 2026 $1,300.00 $149.49 $110.00/$119.40 0 26 49%
16 Oct 2026 $1,360.00 $201.59 $156.00/$167.80 0 0 51%
16 Oct 2026 $1,290.00 $110.00 $102.70/$114.80 2 1 50%
16 Oct 2026 $1,370.00 $210.56 $162.40/$177.40 0 0 51%
16 Oct 2026 $1,280.00 $134.67 $96.00/$108.00 0 7 50%
16 Oct 2026 $1,380.00 $219.89 $169.40/$185.40 0 23 50%
16 Oct 2026 $1,270.00 $127.27 $89.60/$101.50 0 1 50%
16 Oct 2026 $1,390.00 $229.22 $179.80/$193.20 0 0 51%
16 Oct 2026 $1,260.00 $119.88 $82.00/$93.50 0 11 49%
16 Oct 2026 $1,400.00 $238.55 $190.40/$201.90 0 5 53%

Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.

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