STRC In-Depth Analysis: How Strategy Uses Perpetual Preferred Shares to Build a Bitcoin Financing Cycle

A unique structural phenomenon has emerged in the crypto market of 2026: the ex-dividend date of a Nasdaq-listed company’s preferred shares has become a key date on the Bitcoin trader’s calendar. At the heart of this trend is a financial product known as STRC.

According to K33 Research, Strategy (formerly MicroStrategy) has used its STRC perpetual preferred shares to fund routine mid-month Bitcoin purchases, enabling the company to execute some of the largest buy-ins of 2026 so far. In March, STRC funded the purchase of 22,131 BTC; in April, it funded 46,872 BTC. During certain periods, the volume of Bitcoin acquired through STRC has approached or even surpassed the net inflows of some US spot Bitcoin ETFs over the same timeframe.

As of May 18, 2026, Bitcoin was trading at $77,021.1, down 1.06% over 24 hours but up 11.76% over the past 30 days. Strategy’s total Bitcoin holdings have reached 818,869 BTC, making the company a critical force in Bitcoin’s roughly $1.54 trillion market cap. The company’s average acquisition cost stands at $75,540 per Bitcoin.

However, STRC’s significance goes far beyond being a simple financing tool. It marks a deeper shift: Bitcoin is evolving from a "purchased asset" into an "underlying asset supporting long-term credit structures."

STRC Overview

STRC is Strategy’s Series A variable-rate perpetual preferred share, launched in July 2025 and traded on Nasdaq under the ticker STRC. Key product parameters include:

• Par value: $100
• Dividend type: Floating rate, paid monthly in cash
• Current annualized dividend yield: 11.5%
• Dividend adjustment mechanism: Can be adjusted monthly within a ±0.25 percentage point range
• Perpetual structure: No maturity date, no redemption obligation, holders cannot demand redemption
• Non-convertible: STRC cannot be converted into MSTR common stock

Since its launch, STRC has seen rapid capital inflows. According to the company’s Q1 earnings report, STRC’s assets under management grew to $8.5 billion within nine months, making it the world’s largest preferred share by market cap. Year-to-date, Strategy has raised $5.58 billion via STRC, a 189% increase. Robust market demand has recently pushed STRC’s market cap to about $8.5 billion.

In terms of price performance, STRC has a Sharpe ratio of 2.53 and volatility of about 3%, displaying the characteristics of a typical fixed-income product. Q1 data shows STRC’s average daily trading volume at $375 million, with the market viewing it as a low-volatility, high-yield, highly liquid fixed-income instrument. This is due to its unique design, which achieves both "high dividend yield" and "low volatility"—traits that are typically at odds.

From Orange Dot to Perpetual Financing Engine

Generational Shift in Financing Structure

Strategy’s Bitcoin acquisition funding has gone through three distinct phases.

The first phase (August 2020 to end of 2023) was a period of leveraged experimentation. The company primarily used convertible bonds and common stock offerings to accumulate Bitcoin, with convertible bond coupons as low as 0.625% to 2.25%, keeping financing costs extremely low.

The second phase (2024 to mid-2025) was a period of accelerated expansion. The approval of spot Bitcoin ETFs structurally boosted market liquidity, and MSTR’s price premium to Bitcoin NAV (mNAV) exceeded 1x, creating significant arbitrage opportunities for financing Bitcoin purchases.

The third phase (from H2 2025 to present) marks the era of STRC-led perpetual equity financing. On March 23, 2026, Strategy announced a new $42 billion ATM (at-the-market) issuance program—$21 billion allocated to MSTR common stock, $21 billion to STRC preferred shares, and an additional $2.1 billion STRK preferred share plan. CEO Phong Le made it clear that the company is shifting from relying on common stock issuance to using preferred shares as the main vehicle for Bitcoin acquisitions.

Key Milestones

Data sources: K33 Research, Strategy 8-K filings, Strategy financial reports

Data & Structural Analysis: The Capital Cycle Mechanism

Core Mechanism: The Three-Step Cycle

The logic behind STRC-driven Bitcoin purchases can be summarized as a three-step cycle.

Step 1: Demand Anchoring. STRC offers an annualized floating dividend yield of 11.5%, paid monthly in cash. The dividend rate can be adjusted by ±0.25 percentage points each month based on market conditions, keeping STRC’s trading price near its $100 par value. When the market price approaches or exceeds par, institutional investors are drawn in by the prospect of high, stable cash flows.

Step 2: ATM Issuance Triggered. When STRC’s price hits or exceeds $100, Strategy issues new STRC shares via its ATM program. This allows the company to gradually sell shares directly into the open market, without needing a full underwritten offering each time.

Step 3: Capital Converted to BTC. Strategy uses the proceeds from STRC issuance to directly purchase Bitcoin on the market, completing the "equity capital → Bitcoin asset" pathway.

What makes this cycle unique is the tight coupling between STRC’s financing side and the Bitcoin acquisition side. K33’s research highlights a recurring rhythm: each month, the ex-dividend date typically falls around the 15th. To qualify for the dividend, investors buy STRC before the ex-dividend date, pushing its price above par and triggering additional ATM issuance, which in turn drives concentrated Bitcoin buying in the middle of the month. For example, on the eve of the May 15 ex-dividend date, STRC’s single-day trading volume hit a record $1.53 billion—over four times the 30-day average—with most trades at or above par, directly illustrating this pattern.

Structural Safety Feature: The "Dividend Blocker"

A key feature of STRC’s design is the "dividend blocker." If STRC dividends are ever missed, no subordinate securities (including other preferred shares and MSTR common stock) can receive any dividends until all STRC arrears are fully paid. This mechanism places STRC holders just below debt in the capital stack, essentially using Strategy’s Bitcoin holdings as implicit collateral and creating a hybrid instrument with both equity and debt-like seniority.

Quantitative Comparison of Financing Efficiency

The core difference between STRC and common stock financing is dilution. STRC issuance does not increase the number of MSTR common shares, thus avoiding dilution of net asset value (NAV) per share. At the same time, estimates suggest that for every $1 raised via STRC, combined with $2 in MSTR equity financing, Strategy can deploy about $3 in Bitcoin buying power—effectively a 3x leverage effect.

Based on current data, Strategy’s annual dividend obligation is about $1.49 billion. If the full $21 billion STRC plan is executed at an 11.5% annual yield, the company’s annual dividend obligation would rise by roughly $2.4 billion—a fixed cash outflow unaffected by Bitcoin price volatility.

As of May 2026, Strategy’s balance sheet shows $2.25 billion in USD cash reserves. The company states that this reserve is sufficient to cover more than 2.5 years of dividends and interest payments. In terms of Bitcoin holdings, the annual dividend obligation represents only about 0.18% of holdings—a very high coverage ratio.

Market Perspectives: Four Competing Views

The market has formed four distinct viewpoints regarding STRC and Strategy’s overall model.

The Optimists: "A Perpetual Bitcoin Absorption Machine"

Michael Saylor has described STRC as a "perpetual Bitcoin absorption machine." The central logic: as long as Bitcoin’s long-term return exceeds STRC’s overall funding cost, the system can, in theory, continue to operate indefinitely.

In recent interviews, Saylor elaborated that even if the company sells some BTC in the future to pay dividends, it may still be able to expand net holdings through new financing. He cited Bitcoin’s liquidity (claiming $2–5 billion in daily volume) and characterized potential BTC sales as "almost immeasurable." Note that this liquidity figure is management’s estimate and lacks independent third-party verification. Saylor frames BTC sales as "testing market liquidity" rather than a "strategic shift."

On the institutional side, Citigroup holds about $138 million in Strategy positions and has repeatedly reiterated its buy rating. Although Citi lowered its target price from $325 to $260 on March 18, it maintains a buy recommendation.

The Skeptics: "Quasi-Ponzi Risk" Concerns

Market commentators like Coffeezilla have raised concerns about "quasi-Ponzi risk" with STRC, SATA, and similar corporate preferred shares. The core argument: multiple Bitcoin-holding firms are cross-subscribing to each other’s preferred shares. For example, Strive used $50 million (about a third of its treasury) to buy Strategy’s STRC, while also issuing its own SATA preferred shares with a 13% annual dividend. The concern is that one company is using a third of its cash to buy another’s preferred shares, and both parties’ ability to pay dividends ultimately depends on the same underlying asset (Bitcoin), creating layers of interlocking credit commitments.

Strive’s Chief Risk Officer, Jeff Walton, directly responded, defending STRC as a "high-quality credit product with a risk-return profile superior to traditional fixed income." The two sides engaged in a 90-minute public debate.

Veteran investor Peter Schiff has also criticized the STRC model, arguing that investors are shifting funds from Bitcoin itself into STRC in pursuit of its roughly 11.5% yield.

The crux of this debate: if every layer of product promises double-digit returns, and all layers’ ability to pay ultimately depends on Bitcoin not falling, does this multi-layered credit structure pose systemic risk?

Neutral Analysts: K33’s Rhythm Model

K33 Research takes a more structural view. Research director Vetle Lunde notes that STRC’s ex-dividend mechanism is becoming a key driver of Bitcoin’s mid-month price action. Investors buy STRC before ex-dividend dates to qualify for dividends, pushing the price above par, triggering ATM issuance, and channeling funds into the Bitcoin market.

However, K33 also points out a noteworthy signal: in May 2026, STRC’s return to above-par pricing has slowed compared to previous months, suggesting market demand may be reaching a temporary plateau. This observation provides a key data anchor for assessing the sustainability of the STRC model—the financing engine is not of infinite power.

Narrative Shifts in the Market

A more profound shift is happening at the narrative level. "Never selling Bitcoin" was once Strategy’s defining feature among public companies. On the Q1 2026 earnings call (May 5), Michael Saylor softened this stance for the first time, saying the company may sell some Bitcoin to pay dividends in order to "get the market used to it and send a clear signal: we really will do this."

Saylor later clarified that this is not a strategic shift, but rather intended to "inoculate the shorts." Regardless of intent, this statement marks a revision of a five-year core narrative. According to Polymarket, as of May 18, 2026, the probability of Strategy selling Bitcoin before December 31 has reached 85%. Benzinga reports a 79% probability before June 30, and 92% by year-end.

Industry Impact Analysis

Impact 1: Bitcoin’s Shift from Asset to Credit Foundation

The deepest significance of STRC is not just that it provides a new channel for corporate Bitcoin purchases. It marks a more fundamental structural shift: Bitcoin is evolving from a "reserve asset" to the "underlying asset supporting long-term credit structures."

This shift is evident on multiple levels. In capital structure, Bitcoin holdings become implicit collateral for preferred share dividends, binding a public company’s credit expansion capacity to its Bitcoin exposure. In fixed income, STRC’s 11.5% annual yield offers investors returns not directly sourced from Bitcoin, but with repayment capacity deeply tied to Bitcoin’s price. Financially, Bitcoin is no longer just a passive holding—it is actively integrated into corporate capital structure design, serving a role similar to collateral in traditional finance.

This transformation is made possible by three factors: Strategy’s massive 818,869 BTC holding, transparent public reporting, and continuous disclosure requirements for listed companies. Together, these form the minimum trust foundation for the credit market to accept "Bitcoin as an underlying asset."

Impact 2: Reshaping Corporate Bitcoin Acquisition

The STRC model upgrades corporate Bitcoin purchases from "balance sheet-driven" to "credit market-driven." Traditionally, companies bought Bitcoin using their own cash or dilutive equity financing. STRC opens the fixed income market pipeline—preferred share investors seeking 11.5% annual yields are, in effect, channeling billions in incremental capital into the Bitcoin market.

Since the start of 2026, the scale of STRC-driven Bitcoin purchases has been substantial, while US spot Bitcoin ETFs have netted about 8,000 BTC in the same period—STRC-driven purchases have far surpassed ETFs. This highlights how, under certain conditions, structured corporate financing can outpace passive products like ETFs in accumulating Bitcoin.

However, this structural change has a flip side: corporate Bitcoin buying has become highly concentrated in Strategy alone. According to Saylor’s May 17 post on X, Strategy now holds about 76% of all corporate treasury Bitcoin, while other companies’ share has dropped from a peak of 95% to just 2%. What was once touted as "broadening institutional ownership" has, in reality, become a single-company concentration risk.

Impact 3: Changing Bitcoin Market Supply and Demand

Placing Strategy’s buying in the context of overall supply highlights its scale. The Bitcoin network produces about 450 new coins per day. According to K33 Research, Strategy’s average monthly purchases are about 36,137 BTC—2.7 times the network’s new monthly output. In other words, the company’s monthly purchases are roughly equivalent to 80 days of total miner production.

STRC institutionalizes this buying power—creating a fixed buying rhythm around each ex-dividend date, which provides cyclical demand support for the market. However, this also introduces a structural risk: if STRC financing slows or pauses, this demand could disappear in lockstep, requiring a market supply-demand reset.

Impact 4: The Emergence of a Crypto Corporate Credit Network

A notable trend is that leading Bitcoin-holding companies are cross-subscribing to each other’s preferred shares, building a "digital capital closed loop" outside the traditional banking system.

Strive invested $50 million in Strategy’s STRC, while also issuing its own SATA preferred shares with a 13% annual yield. This marks a milestone: Bitcoin-holding companies are not just competing for BTC exposure, but are now using each other’s credit instruments to optimize their own balance sheets.

Saylor has also revealed that several DeFi platforms (including Pendle and Saturn) have begun tokenizing STRC-linked dividend exposures for on-chain trading. He believes this trend could give rise to digital banking products offering Bitcoin-collateralized yields. From an evolutionary perspective, STRC is not just a financing tool, but could become a bridge between traditional credit markets and crypto-native finance.

Impact 5: Expanding Institutional Access to Crypto

Citigroup’s $138 million position in Strategy signals traditional finance’s endorsement of this model. JPMorgan estimates that if Strategy maintains its current pace, it could buy up to $30 billion in Bitcoin in 2026.

More importantly, STRC provides a compliant, indirect exposure path for institutions unable to hold Bitcoin directly—such as pension funds, insurers, and bank trust departments—by holding a Nasdaq-listed preferred share product with yields indirectly tied to Bitcoin’s price. If this model proves sustainable, similar structures could proliferate, further broadening institutional access to crypto markets.

Conclusion

STRC is not just a financing tool. It represents a financial experiment that upgrades Bitcoin from a "reserve asset" to a "foundational asset for the credit market."

The true structural significance of STRC is not simply that it enabled more corporate Bitcoin purchases. For the first time, it demonstrates—at scale, in the open market, under regulatory oversight—that Bitcoin can serve as the underlying asset for long-term credit structures. It is now backing fixed income obligations, entering corporate capital structures, and laying the groundwork for a cycle of credit expansion and collateralization.

The sustainability of this experiment depends on three observable structural parameters: whether Bitcoin’s long-term price trend can cover the funding costs of preferred shares; whether demand for STRC in the credit market can continue to grow beyond a temporary "yield grab"; and whether, if there is a mismatch between the financing and buying cycles, the company has enough tools and flexibility to manage the gap without being forced to liquidate assets.