MPWR — Monolithic Power Systems Inc. price, chart and key statistics

Price data

Price

$1,211.89

YTD price return

+33.71%

YTD total return

+34.38%

Next earnings

Oct 29, 2026 · After close

Market cap

59.6B2016-12 3.3B2026-10 59.6B+1687.5% over the window

Enterprise value

58.2B

Shares outstanding

49.1M2016-06 40.5M2026-06 49.1M+21.4% over the window

52W low

$833.18

52W high

$1,714.09

From 52W high

-29.30%

From 52W low

+45.45%

52W range

43%

Beta

1.68

Volume

Rel volume

1.02×

30D volume

778.3K

30D $ vol

1B

Insider trading

Insider net 1WNo open-market insider purchase or sale with a transaction date in the last 7 days, as filed on Form 4.

none

Insider net 1MNo open-market insider purchase or sale with a transaction date in the last 30 days, as filed on Form 4.

none

Insider net 3M0 insider-days of buying (no priced lot) and 7 of selling ($40.7M) in the last 91 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

−$40.7M

Insider net 1Y0 insider-days of buying (no priced lot) and 43 of selling ($575.6M) in the last 365 days, by transaction date, open-market transactions only — awards, exercises, tax withholding and employee-plan purchases are not counted. A Form 4 is filed within two business days of the trade, so the newest days may not be in yet.

−$575.6M

Form 4 transactions by trade date, as filed; latest on file 2026-09-28.

Fundamentals

Sales (ttm)

3.3B2016-06 356.7M2026-06 3.3B+817.6% over the window

Sales/share

$66.602016-06 $8.812026-06 $66.60+656.1% over the window

EPS (ttm)

$16.392016-06 $1.042026-06 $16.39+1476.0% over the window

FCF (ttm)

585.5M2016-06 62.2M2026-06 585.5M+841.3% over the window

FCF/share

$11.912016-06 $1.542026-06 $11.91+675.6% over the window

Book value/share

$79.272016-06 $9.762026-06 $79.27+712.3% over the window

Net margin

24.50%2016-06 12.1%2026-06 24.5%+102.8% over the window

ROE

20.59%2016-06 10.9%2026-06 20.6%+88.8% over the window

ROA

17.11%2016-06 9.2%2026-06 17.1%+86.1% over the window

Current ratio

4.982016-06 6.702026-06 4.98-25.7% over the window

Growth (CAGR, ttm) · 10Y

Sales

+28.69%2025-06-30 → 2026-06-302.5B → 3.3B (+28.7% total)+20.99%2023-06-30 → 2026-06-301.8B → 3.3B (+77.2% total)+25.77%2021-06-30 → 2026-06-301B → 3.3B (+214.7% total)+24.82%2016-06-30 → 2026-06-30356.7M → 3.3B (+817.6% total)

Net income

-51.98%2025-06-30 → 2026-06-301.7B → 801.9M (-52.0% total)+20.99%2023-06-30 → 2026-06-30452.7M → 801.9M (+77.1% total)+32.15%2021-06-30 → 2026-06-30199M → 801.9M (+302.9% total)+33.97%2016-06-30 → 2026-06-3043.1M → 801.9M (+1761.4% total)

FCF

-17.11%2025-06-30 → 2026-06-30706.3M → 585.5M (-17.1% total)+24.12%2023-06-30 → 2026-06-30306.2M → 585.5M (+91.2% total)+19.36%2021-06-30 → 2026-06-30241.7M → 585.5M (+142.2% total)+25.14%2016-06-30 → 2026-06-3062.2M → 585.5M (+841.3% total)

Shares

+2.61%2025-06-30 → 2026-06-3047.9M → 49.1M (+2.6% total)+0.94%2023-06-30 → 2026-06-3047.8M → 49.1M (+2.9% total)+1.37%2021-06-30 → 2026-06-3045.9M → 49.1M (+7.0% total)+1.96%2016-06-30 → 2026-06-3040.5M → 49.1M (+21.4% total)

Per-share growth (CAGR, ttm) · 10Y

EPS

-52.53%2025-06-30 → 2026-06-30$34.51 → $16.39 (-52.5% total)+20.70%2023-06-30 → 2026-06-30$9.32 → $16.39 (+75.9% total)+31.37%2021-06-30 → 2026-06-30$4.19 → $16.39 (+291.2% total)+31.76%2016-06-30 → 2026-06-30$1.04 → $16.39 (+1476.0% total)

Sales/share

+25.41%2025-06-30 → 2026-06-30$53.12 → $66.60 (+25.4% total)+19.86%2023-06-30 → 2026-06-30$38.67 → $66.60 (+72.2% total)+24.08%2021-06-30 → 2026-06-30$22.65 → $66.60 (+194.0% total)+22.42%2016-06-30 → 2026-06-30$8.81 → $66.60 (+656.1% total)

FCF/share

-19.22%2025-06-30 → 2026-06-30$14.75 → $11.91 (-19.2% total)+22.96%2023-06-30 → 2026-06-30$6.41 → $11.91 (+85.9% total)+17.75%2021-06-30 → 2026-06-30$5.26 → $11.91 (+126.4% total)+22.74%2016-06-30 → 2026-06-30$1.54 → $11.91 (+675.6% total)

Book value/share

+18.28%2025-06-30 → 2026-06-30$67.03 → $79.27 (+18.3% total)+27.22%2023-06-30 → 2026-06-30$38.49 → $79.27 (+105.9% total)+27.34%2021-06-30 → 2026-06-30$23.68 → $79.27 (+234.8% total)+23.31%2016-06-30 → 2026-06-30$9.76 → $79.27 (+712.3% total)

Dividend/share

+26.71%2025-06-30 → 2026-06-30$5.62 → $7.12 (+26.7% total)+26.70%2023-06-30 → 2026-06-30$3.50 → $7.12 (+103.4% total)+26.48%2021-06-30 → 2026-06-30$2.20 → $7.12 (+223.6% total)+24.44%2016-06-30 → 2026-06-30$0.80 → $7.12 (+790.0% total)

Price

+9.68%2025-10-27 → 2026-10-27$1,105.05 → $1,211.89 (+9.7% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+43.98%2023-10-27 → 2026-10-27$405.93 → $1,211.89 (+198.5% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+18.21%2021-10-27 → 2026-10-27$525.00 → $1,211.89 (+130.8% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+31.35%2016-10-26 → 2026-10-27$79.26 → $1,211.89 (+1429.0% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.

Total return

+10.41%2025-10-27 → 2026-10-27$1,097.68 → $1,211.89 (+10.4% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+45.02%2023-10-27 → 2026-10-27$397.22 → $1,211.89 (+205.1% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+19.08%2021-10-27 → 2026-10-27$506.11 → $1,211.89 (+139.4% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.+32.41%2016-10-26 → 2026-10-27$73.12 → $1,211.89 (+1557.5% total)Total return with dividends reinvested (adjusted daily closes); endpoints are exact trading-day anniversaries of the latest close. The gap against the Price row is the dividend contribution.

Fundamentals end at the last reported quarter; price and total return end at the latest close.

Valuation

P/E (ttm)Price ÷ TTM diluted EPS. Net income carries everything below the operating line, including one-off gains. Negative when the trailing year lost money.

73.9×2016-12 72.042026-10 74.28+3.1% over the window

P/OI (ttm)Price ÷ TTM operating income. Excludes the below-the-line items that make P/E jump — mark-to-market gains, settlements, tax true-ups.

63.4×2016-12 68.432026-10 63.36-7.4% over the window

Fwd P/E

32.3×

P/S (ttm)Market cap ÷ TTM revenue.

18.2×2016-12 8.962026-10 18.20+103.1% over the window

P/B (mrq)Market cap ÷ stockholders' equity at the most recent quarter end.

15.3×2016-12 8.002026-10 15.29+91.0% over the window

P/FCF (ttm)Market cap ÷ TTM free cash flow (operating cash flow − capex).

101.7×2016-12 51.692026-10 101.73+96.8% over the window

EV/EBITDA (fy)

58.1×

EV/Sales (ttm)

17.8×

FCF yield (ttm)TTM free cash flow ÷ market cap — the inverse of P/FCF.

0.98%2016-09 1.9%2026-06 0.9%-54.9% over the window

Dividend yield (fwd)Indicated annual dividend ÷ last close: the last regular payment × payments a year, from our own dividend record. Shown only for a company that pays the same amount each time (raises and cuts allowed), whose payments are on schedule and agree with the dividends it reports paying; a company whose payments vary in size, such as an unequal interim and final, has no forward figure — see the ttm yield.

0.66%

Dividend yield (ttm)Dividends paid over the last year ÷ last close: the last full cycle of regular payments in our own dividend record. Below the forward yield after a raise, above it after a cut. Shown only when the record holds that full cycle and it agrees with the dividends the company reports paying; otherwise —.

0.62%

Dividend/share (fwd)The indicated annual dividend: the last regular payment × payments a year, for a company that pays the same amount each time.

$8.00

Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 49.1M ÷ 47.9M. Point-in-time share counts from the company's own SEC filings (the same count at both ends), published only when the cash flow statement shows repurchases inside that window. A falling price can't inflate it; negative means net dilution.

-2.61%

Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-2.61%) + dividends paid over that year ($329.2M) ÷ market_cap_at(2025-06-30) ($35B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.

-1.67%

Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($8M) ÷ today's market cap ($59.6B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.

0.01%2016-09 0.0%2026-06 0.0%-27.5% over the window

Shareholder yield (cash, ttm)(TTM buybacks net of issuance $8M + TTM dividends $329.2M) ÷ today's market cap ($59.6B). Same caveat as the cash buyback yield.

0.57%2016-09 0.0%2026-06 0.5%+2937.4% over the window

Vs own 10Y history

P/E

60th

P/OI

41st

P/S

77th

P/B

72nd

P/FCF

91st