ETH vs COIN vs MARA vs RIOT

For growth investors, Riot Platforms, Inc.

(RIOT) is the stronger pick with 71. 9% revenue growth year-over-year, versus -4. 9% for Grayscale Ethereum Mini Trust (ETH). Grayscale Ethereum Mini Trust (ETH) offers the better valuation at 10. 8x trailing P/E (8. 5x forward), making it the more compelling value choice. Analysts rate Coinbase Global, Inc. (COIN) a "Buy" — based on 37 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Grayscale Ethereum Mini Trust (ETH) is the cheapest at 10.

8x versus Coinbase Global, Inc. at 43. 4x. On forward P/E, Grayscale Ethereum Mini Trust is actually cheaper at 8. 5x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Grayscale Ethereum Mini Trust wins at 0. 20x versus Coinbase Global, Inc. 's 1. 31x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Coinbase Global, Inc.

(COIN) delivered a total return of -26. 8%, compared to -59. 5% for Marathon Digital Holdings, Inc. (MARA). Over 10 years, the gap is even starker: RIOT returned +787. 3% versus MARA's -51. 6%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Grayscale Ethereum Mini Trust (ETH) is the lower-risk stock at 2.

91β versus Riot Platforms, Inc. 's 3. 87β — meaning RIOT is approximately 33% more volatile than ETH relative to the S&P 500. On balance sheet safety, Riot Platforms, Inc. (RIOT) carries a lower debt/equity ratio of 10% versus 105% for Marathon Digital Holdings, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Riot Platforms, Inc.

(RIOT) is pulling ahead at 71. 9% versus -4. 9% for Grayscale Ethereum Mini Trust (ETH). On earnings-per-share growth, the picture is similar: Grayscale Ethereum Mini Trust grew EPS -19. 3% year-over-year, compared to -673. 5% for Riot Platforms, Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Coinbase Global, Inc.

(COIN) is the more profitable company, earning 17. 6% net margin versus -144. 6% for Marathon Digital Holdings, Inc. — meaning it keeps 17. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: COIN leads at 20. 0% versus -90. 6% for MARA. At the gross margin level — before operating expenses — COIN leads at 74. 6%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Grayscale Ethereum Mini Trust (ETH) is the more undervalued stock at a PEG of 0. 20x versus Coinbase Global, Inc. 's 1. 31x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Grayscale Ethereum Mini Trust (ETH) trades at 8. 5x forward P/E versus 66. 1x for Coinbase Global, Inc. — 57. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for MARA: 27. 0% to $16. 13.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Riot Platforms, Inc.

(RIOT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+787. 3% 10Y return). Marathon Digital Holdings, Inc. (MARA) carries a higher beta of 3. 11 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (RIOT: +787. 3%, MARA: -51. 6%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Financial Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: ETH is a small-cap deep-value stock; COIN is a mid-cap quality compounder stock; MARA is a small-cap high-growth stock; RIOT is a small-cap high-growth stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.