WULF vs IREN vs RIOT vs MARA

For growth investors, IREN Limited (IREN) is the stronger pick with 167.

7% revenue growth year-over-year, versus 38. 2% for Marathon Digital Holdings, Inc. (MARA). IREN Limited (IREN) offers the better valuation at 145. 8x trailing P/E (139. 2x forward), making it the more compelling value choice. Analysts rate TeraWulf Inc. (WULF) a "Buy" — based on 12 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.

Over the past 5 years, TeraWulf Inc.

(WULF) delivered a total return of +182. 0%, 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), IREN Limited (IREN) is the lower-risk stock at 2.

97β versus Riot Platforms, Inc. 's 3. 87β — meaning RIOT is approximately 30% more volatile than IREN relative to the S&P 500. On balance sheet safety, Riot Platforms, Inc. (RIOT) carries a lower debt/equity ratio of 10% versus 2% for TeraWulf Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), IREN Limited (IREN) is pulling ahead at 167.

7% versus 38. 2% for Marathon Digital Holdings, Inc. (MARA). On earnings-per-share growth, the picture is similar: IREN Limited grew EPS 234. 5% 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.

IREN Limited (IREN) is the more profitable company, earning 17.

4% net margin versus -144. 6% for Marathon Digital Holdings, Inc. — meaning it keeps 17. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: IREN leads at 3. 5% versus -90. 6% for MARA. At the gross margin level — before operating expenses — IREN leads at 68. 3%, 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.

Analyst consensus price targets imply the most upside for WULF: 33.

8% to $32. 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.

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.