IRON vs. GBTC
IRON (Disc Medicine Inc.) is a stock, while GBTC (Grayscale Bitcoin Trust ETF) is Cryptocurrency fund tracking the CoinDesk Bitcoin Benchmark Rate Index. Over the past 5 years, IRON returned 7.24%/yr vs 13.70%/yr for GBTC. At a 0.12 correlation, their price movements are largely independent.
Performance
IRON vs. GBTC - Performance Comparison
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Returns By Period
In the year-to-date period, IRON achieves a -7.48% return, which is significantly higher than GBTC's -27.18% return.
IRON
- 1D
- -3.35%
- 1M
- 5.21%
- 6M
- 3.42%
- YTD
- -7.48%
- 1Y
- 28.13%
- 3Y*
- 16.90%
- 5Y*
- 7.24%
- 10Y*
- —
GBTC
- 1D
- -1.11%
- 1M
- -2.22%
- 6M
- -33.03%
- YTD
- -27.18%
- 1Y
- -46.99%
- 3Y*
- 35.70%
- 5Y*
- 13.70%
- 10Y*
- 45.97%
IRON vs. GBTC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
IRON Disc Medicine Inc. | -7.48% | 25.25% | 9.76% | 190.40% | -31.65% | -73.55% | 7.32% |
GBTC Grayscale Bitcoin Trust ETF | -27.18% | -7.65% | 113.81% | 317.61% | -75.80% | 7.03% | 154.98% |
Correlation
The correlation between IRON and GBTC is 0.10, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.10 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.13 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.15 |
Correlation (All Time) Calculated using the full available price history since Aug 12, 2020 | 0.12 |
Fundamentals
IRON:
$0.00
GBTC:
$0.00
IRON:
-$265.00K
GBTC:
$0.00
IRON:
-$243.47M
GBTC:
$4.58B
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Return for Risk
IRON vs. GBTC — Risk / Return Rank
IRON
GBTC
IRON vs. GBTC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Disc Medicine Inc. (IRON) and Grayscale Bitcoin Trust ETF (GBTC). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IRON | GBTC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.60 | ||
| Sortino ratioReturn per unit of downside risk | +2.71 | ||
| Omega ratioGain probability vs. loss probability | 1.16 | 0.82 | +0.34 |
| Calmar ratioReturn relative to maximum drawdown | 0.70 | -0.88 | +1.57 |
| Martin ratioReturn relative to average drawdown | 1.43 | -1.41 | +2.83 |
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Drawdowns
IRON vs. GBTC - Drawdown Comparison
The maximum IRON drawdown since its inception was -93.22%, roughly equal to the maximum GBTC drawdown of -89.91%. Use the drawdown chart below to compare losses from any high point for IRON and GBTC.
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Drawdown Indicators
| IRON | GBTC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -93.22% | -89.91% | -3.31% |
Max Drawdown (1Y)Largest decline over 1 year | -40.55% | -53.75% | +13.20% |
Max Drawdown (3Y)Largest decline over 3 years | -64.79% | -53.75% | -11.04% |
Max Drawdown (5Y)Largest decline over 5 years | -77.02% | -85.42% | +8.40% |
Max Drawdown (10Y)Largest decline over 10 years | — | -89.91% | — |
Current DrawdownCurrent decline from peak | -59.18% | -49.43% | -9.75% |
Average DrawdownAverage peak-to-trough decline | -66.31% | -43.49% | -22.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 19.78% | 33.38% | -13.60% |
Volatility
IRON vs. GBTC - Volatility Comparison
The current volatility for Disc Medicine Inc. (IRON) is 9.93%, while Grayscale Bitcoin Trust ETF (GBTC) has a volatility of 10.75%. This indicates that IRON experiences smaller price fluctuations and is considered to be less risky than GBTC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IRON | GBTC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 9.93% | 10.75% | -0.82% |
Volatility (6M)Calculated over the trailing 6-month period | 42.41% | 34.74% | +7.67% |
Volatility (1Y)Calculated over the trailing 1-year period | 52.67% | 44.29% | +8.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 68.90% | 61.83% | +7.07% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 69.08% | 81.43% | -12.35% |
Dividends
IRON vs. GBTC - Dividend Comparison
Neither IRON nor GBTC has paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
GBTC Grayscale Bitcoin Trust ETF | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 5.61% |
IRON Disc Medicine Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
IRON and GBTC have a correlation of 0.10, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GBTC has higher volatility (10.75%) compared to IRON (9.93%). In terms of maximum drawdown, IRON dropped -93.22% vs GBTC's -89.91%.
IRON currently has the higher Sharpe Ratio (0.54 vs -1.07), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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