ALGM — Allegro MicroSystems Inc. stock price and chart

ALGM

$33.91+2.23%

as of close, Oct 20, 2026

☾ AH $33.91 +2.23%

Allegro MicroSystems Inc.Stock · TechnologyNasdaq Composite · 0.02% of ONEQRussell 1000 · 0.01% of IWBRussell 3000 · 0.01% of IWVUS Stock Market · 0.01% of VTI

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Technical analysis2

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Addendum charts0

Available history since Nov 2, 2020

VolumeEEEEEEEEEEEE

20202022202320252026

20.025.030.035.040.045.050.055.060.065.0010.0M20.0M$33.91

2026-10-20

Price$33.91

MA20$37.52

MA50$42.96

Vol7.8M

What would $1,000 invested in ALGM be worth today? →

ALGM returns: By year · By month · By week · Trailing

Key stats#

Price data

Price: $33.91
YTD price return: +28.54%
YTD total return: +28.54%
Next earnings: Oct 29, 2026 · Before open
Market cap: 6.3B2020-12 5.1B2026-10 6.3B+25.2% over the window
Enterprise value: 6.5B
Shares outstanding: 186.4M2019-03 10M2026-06 186.4M+1764.0% over the window
52W low: $22.41
52W high: $71.77
From 52W high: -52.75%
From 52W low: +51.32%
52W range: 23%

Volume

Rel volume: 0.90×
30D volume: 2.7M
30D $ vol: 95.1M

Fundamentals

Sales (ttm): 945.9M2020-03 650.1M2026-06 945.9M+45.5% over the window
Sales/share: $5.072020-03 $65.012026-06 $5.07-92.2% over the window
EPS (ttm): $0.082020-03 $3.702026-06 $0.08-97.9% over the window
FCF (ttm): 87.8M2020-03 35.8M2026-06 87.8M+145.4% over the window
FCF/share: $0.472020-03 $3.582026-06 $0.47-86.8% over the window
Book value/share: $5.172019-03 $58.982026-06 $5.17-91.2% over the window
Net margin: 1.50%2020-03 5.7%2026-06 1.5%-73.6% over the window
ROE: 1.47%2020-03 5.8%2026-06 1.5%-74.8% over the window
ROA: 1.01%2020-03 4.5%2026-06 1.0%-77.8% over the window
Debt / equity: 0.30×2020-03 0.002026-06 0.30
Current ratio: 3.702020-03 2.992026-06 3.70+24.0% over the window

Growth (CAGR, ttm) · 10Y

Sales: +24.31%2025-06-27 → 2026-06-26761.5M → 945.9M (+24.2% total)-2.94%2023-06-30 → 2026-06-261B → 945.9M (-8.5% total)+7.32%2021-06-25 → 2026-06-26664.3M → 945.9M (+42.4% total)n/a
Net income: n/a-61.05%2023-06-30 → 2026-06-26238M → 14.2M (-94.0% total)-19.02%2021-06-25 → 2026-06-2640.8M → 14.2M (-65.2% total)n/a
FCF: +76.90%2025-06-27 → 2026-06-2649.8M → 87.8M (+76.6% total)-2.93%2023-06-30 → 2026-06-2696M → 87.8M (-8.5% total)+0.58%2021-06-25 → 2026-06-2685.4M → 87.8M (+2.9% total)n/a
Shares: +0.74%2025-06-27 → 2026-06-26185M → 186.4M (+0.7% total)-1.05%2023-06-30 → 2026-06-26192.4M → 186.4M (-3.1% total)-0.34%2021-06-25 → 2026-06-26189.6M → 186.4M (-1.7% total)n/a

Per-share growth (CAGR, ttm) · 10Y

EPS: n/a-60.45%2023-06-30 → 2026-06-26$1.22 → $0.08 (-93.8% total)-24.70%2021-06-25 → 2026-06-26$0.32 → $0.08 (-75.8% total)n/a
Sales/share: +23.40%2025-06-27 → 2026-06-26$4.12 → $5.07 (+23.3% total)-1.91%2023-06-30 → 2026-06-26$5.38 → $5.07 (-5.6% total)+7.69%2021-06-25 → 2026-06-26$3.50 → $5.07 (+44.9% total)n/a
FCF/share: +75.60%2025-06-27 → 2026-06-26$0.27 → $0.47 (+75.3% total)-1.90%2023-06-30 → 2026-06-26$0.50 → $0.47 (-5.6% total)+0.92%2021-06-25 → 2026-06-26$0.45 → $0.47 (+4.7% total)n/a
Book value/share: +3.76%2025-06-27 → 2026-06-26$4.99 → $5.17 (+3.7% total)-1.03%2023-06-30 → 2026-06-26$5.34 → $5.17 (-3.1% total)+9.67%2021-06-25 → 2026-06-26$3.26 → $5.17 (+58.7% total)n/a
Price: +11.22%2025-10-20 → 2026-10-20$30.49 → $33.91 (+11.2% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+5.53%2023-10-20 → 2026-10-20$28.85 → $33.91 (+17.5% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+1.08%2021-10-20 → 2026-10-20$32.13 → $33.91 (+5.5% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.n/a
Total return: +11.22%2025-10-20 → 2026-10-20$30.49 → $33.91 (+11.2% 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.+5.53%2023-10-20 → 2026-10-20$28.85 → $33.91 (+17.5% 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.+1.08%2021-10-20 → 2026-10-20$32.13 → $33.91 (+5.5% 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.n/a

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.: 443.2×2020-12 223.422026-10 445.10+99.2% 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.: 135.4×2020-12 434.812026-10 135.37-68.9% over the window
Fwd P/E: 21.4×
P/S (ttm)Market cap ÷ TTM revenue.: 6.7×2020-12 8.552026-10 6.68-21.8% over the window
P/B (mrq)Market cap ÷ stockholders' equity at the most recent quarter end.: 6.6×2020-12 8.772026-10 6.56-25.3% over the window
P/FCF (ttm)Market cap ÷ TTM free cash flow (operating cash flow − capex).: 72.0×2020-12 84.622026-10 71.95-15.0% over the window
EV/EBITDA (fy): 56.3×
EV/Sales (ttm): 6.8×
FCF yield (ttm)TTM free cash flow ÷ market cap — the inverse of P/FCF.: 1.39%2020-09 0.7%2026-06 0.7%-7.2% over the window
Buyback yield (realized, 1y)1 − shares_at(2026-06-26) ÷ shares_at(2025-06-27) = 1 − 186.4M ÷ 185.0M. 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.: -0.74%
Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-0.74%) + dividends paid over that year ($0) ÷ market_cap_at(2025-06-27) ($6.3B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.: -0.74%
Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($0) ÷ today's market cap ($6.3B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.: 0.00%2020-09 0.0%2026-06 0.0%
Shareholder yield (cash, ttm)(TTM buybacks net of issuance $0 + TTM dividends $0) ÷ today's market cap ($6.3B). Same caveat as the cash buyback yield.: 0.00%2020-09 0.0%2026-06 0.0%

Vs own 10Y history

P/E: 93rd
P/OI: 72nd
P/S: 47th
P/B: 53rd
P/FCF: 58th

Bar = where today’s multiple sits in ALGM’s own 10-year range:near a decade-low (cheap)→near a decade-high (rich).

Performance · price return · as of 2026-10-20#

+2.23%

+0.77%

-0.56%

-26.86%

YTD

+28.54%

+11.22%

+5.54%

Financial statements

Open full ALGM financials →

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ALGM — Allegro MicroSystems Inc. price, chart and key statistics