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 1.69%/yr vs 10.89%/yr for GBTC. At a 0.12 correlation, their price movements are largely independent.
Performance
IRON vs. GBTC - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, IRON achieves a -11.38% return, which is significantly higher than GBTC's -32.11% return.
IRON
- 1D
- -0.11%
- 1M
- 5.31%
- YTD
- -11.38%
- 6M
- -12.51%
- 1Y
- 27.95%
- 3Y*
- 10.28%
- 5Y*
- 1.69%
- 10Y*
- —
GBTC
- 1D
- -4.01%
- 1M
- -21.14%
- YTD
- -32.11%
- 6M
- -31.95%
- 1Y
- -44.25%
- 3Y*
- 34.23%
- 5Y*
- 10.89%
- 10Y*
- 44.29%
IRON vs. GBTC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
IRON Disc Medicine Inc. | -11.38% | 25.25% | 9.76% | 190.40% | -31.65% | -73.55% | 7.32% |
GBTC Grayscale Bitcoin Trust ETF | -32.11% | -7.65% | 113.81% | 317.61% | -75.80% | 7.03% | 154.98% |
Correlation
The correlation between IRON and GBTC is 0.11, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.11 |
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
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
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 | +1.53 | ||
| Sortino ratioReturn per unit of downside risk | +2.55 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 0.84 | +0.32 |
| Calmar ratioReturn relative to maximum drawdown | 0.69 | -0.84 | +1.53 |
| Martin ratioReturn relative to average drawdown | 1.46 | -1.43 | +2.89 |
Loading charts...
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.
Loading charts...
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% | -52.85% | +12.30% |
Max Drawdown (3Y)Largest decline over 3 years | -64.79% | -52.85% | -11.94% |
Max Drawdown (5Y)Largest decline over 5 years | -81.14% | -85.42% | +4.28% |
Max Drawdown (10Y)Largest decline over 10 years | — | -89.91% | — |
Current DrawdownCurrent decline from peak | -60.91% | -52.85% | -8.06% |
Average DrawdownAverage peak-to-trough decline | -66.39% | -43.45% | -22.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 19.20% | 30.97% | -11.77% |
Volatility
IRON vs. GBTC - Volatility Comparison
The current volatility for Disc Medicine Inc. (IRON) is 12.02%, while Grayscale Bitcoin Trust ETF (GBTC) has a volatility of 13.34%. 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.
Loading charts...
Volatility by Period
| IRON | GBTC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.02% | 13.34% | -1.32% |
Volatility (6M)Calculated over the trailing 6-month period | 42.16% | 34.51% | +7.65% |
Volatility (1Y)Calculated over the trailing 1-year period | 53.21% | 44.38% | +8.83% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 69.12% | 62.09% | +7.03% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 69.32% | 81.45% | -12.13% |
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 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GBTC has higher volatility (13.34%) compared to IRON (12.02%). In terms of maximum drawdown, IRON dropped -93.22% vs GBTC's -89.91%.
IRON currently has the higher Sharpe Ratio (0.53 vs -1.00), 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.
Find the right allocation for IRON and GBTC
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer