BlackRock Accumulates 3% of All Bitcoin in Just 340 Days, Fastest ETF Growth in History

Tue Aug 19 2025
BlackRock’s iShares Bitcoin Trust now holds 794,500 BTC ($91B), nearly 3% of all Bitcoin, making it the fastest-growing ETF ever and redefining institutional adoption.

BlackRock Now Owns 3% of All Bitcoin

794,500 BTC in under a year — the 10T asset manager just redefined institutional adoption.


⚡ Quick Hits

  • 💰 Bitcoin holdings: 794,500 BTC
  • 🌍 Share of supply: 3% of all BTC in circulation
  • 📊 Fund size: 91.1B (H1 2025)
  • 🚀 Growth speed: 340 days → 91B (fastest ETF in history)
  • 🥇 Comparative: SPDR Gold Shares needed 1,600+ days to match
  • 📌 Guidance: BlackRock suggests 2% BTC allocation for corporate portfolios

🏦 BlackRock’s Big Grab

In just 340 days, BlackRock’s iShares Bitcoin Trust (IBIT) became:

  • The largest Bitcoin ETF ever
  • The fastest-growing ETF in history
  • The #1 institutional BTC holder

That’s 794,500 BTC worth 91.1B → almost 3% of the total supply.

For context, the world’s biggest gold ETF (SPDR Gold Shares) took 4+ years to hit the same milestone. Bitcoin did it in less than 12 months.


⚖️ Bitcoin vs. Gold

BlackRock isn’t hiding its playbook:

  • BTC = digital gold hedge vs sovereign debt + geopolitical risk
  • Volatility now mirrors large-cap tech stocks → easier for Wall Street models
  • Guidance: Corporates should allocate up to 2% of their treasuries into BTC

Translation: Bitcoin isn’t fringe anymore. It’s a treasury hedge.


🗣️ What BlackRock Is Saying

Recent statements emphasize:

🛡️ BTC = protection against fiat risks 📈 BTC volatility is now “modelable” 🪙 Corporates should hold Bitcoin as a hedge

And it’s not just Bitcoin. BlackRock is filing with the SEC to launch Ethereum ETFs with staking, aiming to dominate across multiple digital asset markets.


⚠️ The Centralization Dilemma

Here’s the twist: by amassing 794K BTC, BlackRock now eclipses holdings of:

  • MicroStrategy
  • Marathon Digital
  • Metaplanet
  • Major exchanges

Decentralization purists worry: can Bitcoin still be “people’s money” when a single TradFi giant controls 3% of supply?


🔮 Bigger Picture

BlackRock’s move marks a turning point:

  • Mainstream legitimization: Bitcoin is now Wall Street’s hedge asset
  • 🏦 Institutional FOMO: Other asset managers will rush to launch crypto ETFs
  • 📉 Supply shock risk: ETF hoarding reduces market liquidity → amplifies volatility

In short: BlackRock didn’t just buy Bitcoin. It changed the rules of institutional crypto adoption.


TL;DR

  • 🏦 BlackRock’s iShares Bitcoin Trust hit 794,500 BTC (91.1B) in <1 year
  • 🌍 Owns 3% of Bitcoin supply — biggest institutional holder ever
  • 📊 ETF growth = fastest in history (beat gold by 4x speed)
  • 📌 Guidance: corporates should allocate 2% to BTC
  • ⚠️ Raises centralization concerns, but cements Bitcoin as digital gold for Wall Street

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