Strategy Inc.'s bitcoin-backed perpetual preferred stock STRC crossed a notable milestone this week after Chairman Michael Saylor announced the instrument had delivered one of the strongest risk-adjusted performance metrics in the market.
Issued on Nasdaq in July 2025, STRC (Strategy Inc. Variable Rate Series A Perpetual Stretch Preferred Stock) is part of Strategy's expanding suite of bitcoin-linked credit instruments. On March 11, 2026, Saylor posted on X: "STRC just achieved a Sharpe Ratio greater than 3. Digital Credit is engineered for superior risk-adjusted returns." His chart showed STRC's Sharpe Ratio at 3.08, placing it above assets including Alphabet Inc. Class C, Nvidia Corporation, Tesla Inc., and the SPDR S&P 500 ETF Trust.
Understanding the Sharpe Ratio
The Sharpe Ratio measures investment performance relative to risk. It subtracts the risk-free rate (typically short-term U.S. Treasury yields) from an asset's return, then divides by its standard deviation of returns. A ratio above 1 is considered good, above 2 very strong, and above 3 exceptional. STRC's 3.08 ranks among rare territory for traded securities, especially those delivering double-digit yields.
How Strategy Achieves This Efficiency
Strategy holds the largest corporate bitcoin treasury—approximately 738,731 BTC as of early March 2026. The company uses this digital asset as backing for a family of preferred equities it calls Digital Credit. STRC sits at the top: it has a $100 par value, trades near that level (roughly $100.10 on March 11), and delivers an effective yield around 11.5% paid monthly via a variable dividend designed to keep the share price near par.
Strategy describes the structure as a "financial refinery." Bitcoin held on its balance sheet supports preferred securities that convert long-term appreciation into stable income streams, stripping away bitcoin's typical price volatility. STRC investors receive yield tied indirectly to bitcoin without riding every market swing, while common shareholders absorb more volatility and upside. Preferred shares rank higher in the capital stack than common equity, providing priority in liquidation.
Other Digital Credit series target different appetites: STRD offers higher yields with greater volatility, STRF fixed cumulative dividends, and STRK convertible features. STRC records consistently low volatility (roughly 2.5%-3.4% recently), driving its leading Sharpe Ratio. Year-to-date gains stand at about 3.2%, with 1.4% over the past month and 8.2% over six months, while trading rarely deviates far from its $100 anchor. Its beta versus the S&P 500 sits near 0.34, indicating low correlation with the broader equity market.
Tax nuances include that STRC dividends often qualify as return of capital, allowing investors to defer taxes until shares are sold, though classification depends on IRS rules and individual circumstances.
Risks remain: STRC is a perpetual preferred security with no maturity, reliant on Strategy's bitcoin-dominated balance sheet for collateral. Dividends adjust monthly and could change under severe stress; preferred securities can become less liquid than common stocks during market turbulence.
Nevertheless, the strong Sharpe ratio underscores the core pitch: transform bitcoin's long-term growth potential into a steady income instrument with comparatively muted volatility. If the concept continues delivering metrics above 3, Strategy's Digital Credit model could become one of the more unconventional financial engineering experiments gaining traction in both traditional markets and digital assets.