DYN — Dyne Therapeutics Inc. price, chart and key statistics

Price data

Price

$14.25

YTD price return

-27.15%

YTD total return

-27.15%

Next earnings

Nov 4, 2026

Market cap

2.7B2020-09 917.5M2026-10 2.7B+190.0% over the window

Enterprise value

2.2B

Shares outstanding

186.7M2019-12 2.6M2026-06 186.7M+7119.9% over the window

52W low

$14.00

52W high

$27.31

From 52W high

-47.81%

From 52W low

+1.79%

52W range

2%

Volume

Rel volume

0.76×

30D volume

3.7M

30D $ vol

64.8M

Fundamentals

EPS (ttm)

-$2.782021-12 -$2.932025-12 -$3.47+18.4% over the window

FCF (ttm)

-480.4M2019-12 -13.5M2026-06 -480.4M+3463.8% over the window

FCF/share

-$2.572019-12 -$5.212026-06 -$2.57-50.6% over the window

Book value/share

$3.762019-12 $5.432026-06 $3.76-30.7% over the window

ROE

-73.97%2019-12 -105.9%2026-06 -74.0%-30.1% over the window

ROA

-52.25%2019-12 -90.4%2026-06 -52.3%-42.2% over the window

Debt / equity

0.28×2020-09 0.032026-06 0.28+948.1% over the window

Current ratio

12.022019-12 6.262026-06 12.02+92.0% over the window

Growth (CAGR, ttm) · 10Y

Shares

+31.29%2025-06-30 → 2026-06-30142.3M → 186.7M (+31.3% total)+45.17%2023-06-30 → 2026-06-3061M → 186.7M (+206.0% total)+29.50%2021-06-30 → 2026-06-3051.3M → 186.7M (+264.2% total)n/a

Per-share growth (CAGR, ttm) · 10Y

Book value/share

-6.40%2025-06-30 → 2026-06-30$4.02 → $3.76 (-6.4% total)+3.51%2023-06-30 → 2026-06-30$3.39 → $3.76 (+10.9% total)-15.69%2021-06-30 → 2026-06-30$8.83 → $3.76 (-57.4% total)n/a

Price

-13.22%2025-10-16 → 2026-10-16$16.42 → $14.25 (-13.2% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.+21.93%2023-10-16 → 2026-10-16$7.86 → $14.25 (+81.3% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.-0.86%2021-10-15 → 2026-10-16$14.88 → $14.25 (-4.2% total)Price appreciation from split-adjusted daily closes, excluding dividends; endpoints are exact trading-day anniversaries of the latest close.n/a

Total return

-13.22%2025-10-16 → 2026-10-16$16.42 → $14.25 (-13.2% 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.+21.93%2023-10-16 → 2026-10-16$7.86 → $14.25 (+81.3% 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.-0.86%2021-10-15 → 2026-10-16$14.88 → $14.25 (-4.2% 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.

-5.1×2020-09 -61.752026-10 -5.12-91.7% over the window

Fwd P/E

-5.1×

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

3.8×2020-09 2.502026-10 3.79+51.5% over the window

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

-18.05%2020-12 -4.4%2026-06 -11.6%+162.6% over the window

Buyback yield (realized, 1y)1 − shares_at(2026-06-30) ÷ shares_at(2025-06-30) = 1 − 186.7M ÷ 142.3M. 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.

-31.29%

Shareholder yield (realized, 1y)Buyback leg + dividend leg: shares retired over the year (-31.29%) + dividends paid over that year ($0) ÷ market_cap_at(2025-06-30) ($1.4B). Both legs are measured against the start of the window, so a payout can't shrink its own denominator.

-31.29%

Buyback yield (cash, ttm)Buybacks net of issuance over the trailing twelve months ($0) ÷ today's market cap ($2.7B). Dollars SPENT over what the company is worth NOW — a stock that fell after buying reads high.

0.00%2020-12 0.0%2026-06 0.0%

Shareholder yield (cash, ttm)(TTM buybacks net of issuance $0 + TTM dividends $0) ÷ today's market cap ($2.7B). Same caveat as the cash buyback yield.

0.00%2020-12 0.0%2026-06 0.0%

Vs own 10Y history

P/B

73rd