Bitcoin Supply Crosses 20.07 Million, But Up to 20% May Already Be Lost Forever

The 20 millionth coin was minted around March 2026 at block height ~940,000, taking 17 years to reach that level . But the final coins will arrive at a snail's pace. The current block reward of 3.125 BTC adds roughly 450 new coins per day, a rate that will halve to about 225 BTC per day at the next halving, expected around April 2028 . Bitcoin's last satoshi won't be mined until approximately 2140 .

CZ: 10–20% of Mined Bitcoin Is Permanently Lost

On August 15, 2026, CZ posted on X that Bitcoin's mined supply had surpassed 20.07 million, adding: "I'd estimate 10–20% of existing bitcoins are lost/stuck/unrecoverable. It's a deflationary asset" .

This estimate implies that between 2 million and 4 million BTC are inaccessible due to lost private keys, forgotten passwords, damaged hardware, or abandoned wallets . If accurate, the true circulating supply falls to roughly 16.06 million to 18.06 million BTC .

MetaMask and Binance Academy have both cited estimates that as much as 20% of mined Bitcoin may be permanently lost . The exact number is impossible to verify, but the implication is clear: the tradable float of Bitcoin may be significantly smaller than the 20.07 million figure suggests .

CZ has also pointed out that with roughly 57.5 million millionaires worldwide and only about 20 million total BTC — and far fewer actually available — scarcity could eventually price many high-net-worth individuals out of owning a full coin .

Glassnode: Bitcoin in a 'Late Bear Market Compression Phase'

While supply dynamics are increasingly bullish, price action tells a different story. Glassnode's August 13, 2026 report classified the current market as a "late bear market compression phase" .

Key observations from Glassnode's Week 32 on-chain report:

• BTC trapped between $63,000 and $68,700. The median realized price ($63,000) is acting as support — the midpoint of every holder's cost basis. The short-term holder cost basis ($68,700) is acting as resistance — the average entry of recent buyers .
• Spot trading volume hit its lowest level since 2019, indicating prolonged consolidation and lack of conviction .
• Seller exhaustion around $64,000, but buyers remain absent. Leveraged funds are already positioned long, leaving the market waiting for a catalyst .
• Risk of a retreat to $58,500. Glassnode warned that if $63,000 support breaks, Bitcoin could decline toward the June low of roughly $58,500 .

A breakout above $68,700 supported by volume could signal a reversal; a drop below $58,500 may trigger a sharper decline .

Spot Bitcoin ETF Outflows Accelerate

Institutional demand, a key driver of Bitcoin's price structure, has been softening:

• August 12: U.S. spot Bitcoin ETFs recorded $61.16 million in net outflows, led by Fidelity's FBTC ($46.82M) and BlackRock's IBIT ($14.34M) .
• August 13: Outflows accelerated to $131 million, led by ARK 21Shares' ARKB ($58.8M), FBTC ($55.1M), and Grayscale GBTC ($36.3M). These were partially offset by Grayscale Mini BTC ($38.9M inflow) and Morgan Stanley's MSBT ($7.1M) .
• Two-day total: Combined outflows reached roughly $192 million, the largest two-day withdrawal streak in several weeks .

The outflows followed a five-day inflow streak that had brought in roughly $853.5 million from August 3–7, underscoring the volatility of institutional crypto ETF flows .

Macro Context: Fed Holds Rates, Inflation Cools

The Federal Reserve maintained its target range at 3.5%–3.75% through its latest meeting. July's CPI print eased to 3.4% year-over-year, down from prior readings, giving the Fed room to hold rates steady without tightening further.

A cooling inflation trajectory supports the case for eventual rate cuts, which historically benefits risk assets including Bitcoin. However, the current "higher-for-longer" rate environment continues to pressure speculative demand and contributed to the depressed spot volumes and ETF outflows observed in August.

What It All Means

Bitcoin is at a paradoxical moment. Its supply scarcity has never been more pronounced — 95.6% already mined, with perhaps 10–20% of that lost forever, and the remaining issuance stretching out over more than a century. Yet price action and institutional flows paint a picture of exhaustion and indecision. Glassnode's verdict is essentially that the market is waiting: sellers are tired, buyers haven't shown up, and leveraged capital is already in position. A decisive breakout — or breakdown — likely requires an external catalyst, whether macro, regulatory, or structural.