AMLX — Amylyx Pharmaceuticals Inc. price, chart and key statistics

Price data

Price

$28.77

YTD price return

+138.16%

YTD total return

+138.16%

Next earnings

Nov 5, 2026

Market cap

3.2B2022-03 752.2M2026-10 3.2B+326.2% over the window

Enterprise value

3B

Shares outstanding

111.4M2021-12 7M2026-06 111.4M+1487.1% over the window

52W low

$10.83

52W high

$41.14

From 52W high

-30.07%

From 52W low

+165.65%

52W range

59%

Volume

Rel volume

1.13×

30D volume

1.4M

30D $ vol

42.8M

Fundamentals

EPS (ttm)

-$1.432021-12 -$13.352026-06 -$1.43-89.3% over the window

FCF (ttm)

-126.7M2021-12 -75.2M2026-06 -126.7M+68.6% over the window

FCF/share

-$1.142021-12 -$10.702026-06 -$1.14-89.4% over the window

Book value/share

$2.152021-12 -$21.532026-06 $2.15-110.0% over the window

ROE

-63.59%2022-12 -58.2%2026-06 -63.6%+9.2% over the window

ROA

-57.49%2021-12 -83.3%2026-06 -57.5%-31.0% over the window

Current ratio

12.122021-12 6.032026-06 12.12+100.9% over the window

Growth (CAGR, ttm) · 10Y

Shares

+24.98%2025-06-30 → 2026-06-3089.2M → 111.4M (+25.0% total)+18.25%2023-06-30 → 2026-06-3067.4M → 111.4M (+65.4% total)+84.95%2021-12-31 → 2026-06-307M → 111.4M (+1487.1% total)n/a

Per-share growth (CAGR, ttm) · 10Y

Book value/share

+14.02%2025-06-30 → 2026-06-30$1.88 → $2.15 (+14.0% total)-27.93%2023-06-30 → 2026-06-30$5.73 → $2.15 (-62.6% total)n/an/a

Price

+87.26%2025-10-20 → 2026-10-20$15.37 → $28.77 (+87.2% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+19.54%2023-10-20 → 2026-10-20$16.84 → $28.77 (+70.8% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+10.21%2022-01-07 → 2026-10-20$18.07 → $28.77 (+59.2% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.n/a

Total return

+87.26%2025-10-20 → 2026-10-20$15.37 → $28.77 (+87.2% 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.+19.54%2023-10-20 → 2026-10-20$16.84 → $28.77 (+70.8% 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.+10.21%2022-01-07 → 2026-10-20$18.07 → $28.77 (+59.2% 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.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.

-20.1×2022-03 -8.552026-10 -21.08+146.4% over the window

Fwd P/E

-24.2×

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

13.4×2022-03 3.122026-10 13.40+329.4% over the window

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

-3.95%2021-12 -10.0%2026-06 -6.3%-36.6% over the window

Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 111.4M ÷ 89.2M. 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.

-24.98%

Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-24.98%) + dividends paid over that year ($0) ÷ market_cap_at(2025-06-30) ($571.6M). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.

-24.98%

Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($0) ÷ today's market cap ($3.2B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.

0.00%2021-12 0.0%2026-06 0.0%

Shareholder yield (cash, ttm)(TTM buybacks net of issuance $0 + TTM dividends $0) ÷ today's market cap ($3.2B). Same caveat as the cash buyback yield.

0.00%2021-12 0.0%2026-06 0.0%

Vs own 10Y history

P/S

41st

P/B

92nd