MicroStrategy Inc. (NASDAQ: MSTR), the largest corporate Bitcoin holder, announced on December 16, 2025, another massive accumulation: 10,645 BTC purchased for approximately $980.3 million between December 8 and December 14. This brings its total holdings to 671,268 BTC, acquired at an average cost of $74,972 per coin for a cumulative ~$50.33 billion. Despite the aggressive buying—funded via at-the-market stock sales and preferred share offerings—a crucial performance metric for MSTR stock has turned negative, raising questions about valuation sustainability amid Bitcoin’s volatile trading around $86,000–$92,000. For investors searching MicroStrategy Bitcoin holdings 2025, MSTR stock analysis, and corporate BTC treasury updates, this latest move reinforces the company’s all-in strategy while highlighting evolving risks in its Bitcoin proxy model.

Details of MicroStrategy’s $980 Million Bitcoin Buy

The purchase was executed at an average price of $92,098 per BTC during a week of market consolidation. Funding came from nearly $989 million raised through common stock ATM sales and convertible preferred securities (STRF, STRK, STRD series). This accretive approach—issuing shares to buy BTC—aims to increase Bitcoin per share over time, a hallmark of MicroStrategy’s strategy since 2020.

• BTC Acquired: 10,645 coins.
• Cost: ~$980.3 million.
• Average Price: $92,098 per BTC.
• Funding Raised: ~$989 million via equity/preferred offerings.
• Timing: December 8–14, 2025.

Updated MicroStrategy Bitcoin Holdings as of December 2025

As of December 14, MicroStrategy’s treasury stands at:

• Total BTC: 671,268 coins.
• Total Cost Basis: ~$50.33 billion.
• Average Acquisition Price: $74,972 per BTC.
• Current Value: Approximately $58–60 billion (at $86,000–$92,000 BTC price).
• Unrealized Gain: ~$8–10 billion, depending on spot price.

This positions MicroStrategy far ahead in corporate Bitcoin holdings rankings, controlling over 3% of total BTC supply and dwarfing peers like Marathon Digital or Riot Platforms.

• Rank #1: Largest public company BTC holder.
• Supply Share: ~3.2% of 21 million cap.
• Yearly Adds: Consistent weekly/monthly purchases in 2025.
• Treasury Focus: BTC now core “reserve asset” over software revenue.

Why a Key MSTR Stock Metric Turned Negative

Despite the accumulation, one crucial metric—Bitcoin yield or premium to NAV—has reportedly turned red, meaning MSTR shares trade at a discount to the underlying BTC value per share in some calculations. This shift reflects investor caution amid BTC’s failure to break new highs post-October peak, combined with dilution from ongoing share issuances. Proxy stocks like MSTR often amplify BTC moves but face pressure when sentiment cools.

• Metric Concern: Premium erosion or temporary discount to NAV.
• Dilution Impact: ATM and convertible issuances increase share count.
• Stock Performance: MSTR volatile, correlated ~2–3x to BTC.
• Investor Debate: Sustainability of debt/equity-funded buys.
• Counterpoint: Long-term holders view dips as irrelevant.

Broader Context: Corporate Bitcoin Treasury Trend in 2025

MicroStrategy’s relentless buying continues to inspire copycats, with dozens of public companies adding BTC treasuries this year. The strategy—using low-cost capital to acquire hard assets—thrives in low-rate environments but faces scrutiny during consolidations. With Bitcoin volatility persisting, MSTR remains the benchmark for leveraged corporate exposure.

• Industry Leader: Sets standard for BTC treasury policies.
• Copycat Growth: Firms like American Bitcoin, ProCap following suit.
• Funding Innovation: Convertible preferreds enable non-dilutive(ish) buys.
• Macro Sensitivity: Tied to liquidity and rate expectations.
• 2026 Outlook: Potential for resumed premium if BTC breaks out.

In summary, MicroStrategy’s December 16, 2025, disclosure of a $980 million Bitcoin purchase—adding 10,645 BTC to reach 671,268 total—demonstrates unwavering commitment to its treasury strategy, even as a key stock metric flashes red amid market consolidation. Funded via equity and preferred offerings, this move solidifies MSTR’s dominance in corporate Bitcoin holdings 2025. For the latest MicroStrategy Bitcoin updates, MSTR stock metrics, and treasury rankings, track official filings and trackers like BitcoinTreasuries.net—approaching leveraged proxy plays with thorough risk assessment in volatile crypto markets.