cryptoslate.com
As of Dec. 8, Bitcoin ETFs hold 1,495,160 BTC and public companies hold 1,076,061 BTC. Combined, that’s roughly 2.57 million BTC, substantially more than the 2.09 million BTC sitting on centralized exchanges.
The most price-sensitive inventory in Bitcoin’s 19.8 million circulating supply has migrated out of exchange wallets and into structures that respond to different incentives, operate under different regulatory constraints, and mobilize capital on different timelines.
The shift is not just an ownership reshuffle. It is a structural change in how supply moves, how basis trades work, and how volatility behaves when the marginal seller is no longer a retail trader on Binance but a regulated fund, a corporate treasury department, or an institutional custodian managing multi-billion-dollar client mandates.
The old mental model of Bitcoin liquidity assumed exchanges were the dominant reservoirs of sell pressure.
Traders deposited coins, market makers quoted spreads, and drawdowns happened when inventory on order books got hit. That framework still applies, but it now describes a shrinking share of the ecosystem.
Exchange balances have contracted steadily since early 2024, while ETF holdings and institutional custody have expanded.
More than 61% of the Bitcoin supply has remained unmoved for over a year, according to recent research by Glassnode and Keyrock, pointing to a market where effective float is narrowing even as total supply grows.
The question is not whether this matters for price formation, but how to map the new plumbing and what risks emerge when the fastest-growing Bitcoin warehouses are balance-sheet structures tied to equity markets, debt maturity calendars, and monthly NAV reconciliations.
The three-pool system
Bitcoin’s liquid supply now divides into three pools with different mobilization logic. Exchange float is the most reactive.
Coins sitting in hot wallets on Coinbase, Binance, or Kraken can hit bids in minutes, and traders who deposited for leverage or speculative positioning represent the highest-velocity sell pressure.
That pool has been shrinking for years, dropping from multi-million-BTC levels in 2021 to just over 2 million BTC today, based on Coinglass data.
ETF float is slower but growing. US spot Bitcoin ETFs held about 1.31 million BTC as of early December 2025, with BlackRock’s IBIT alone accounting for roughly 777,000 BTC, per Bitcoin Treasuries.
ETF shares trade on secondary markets, so price discovery occurs through share creation and redemption rather than direct spot selling. Authorized participants run arbitrage between ETF share prices and net asset value, but that process involves T+1 or T+2 settlement, custodian coordination, and regulatory reporting.
The result is that ETF-held Bitcoin does not hit spot order books unless APs redeem in-kind and move coins to exchanges. This friction dampens reflexive selling during intraday volatility but can also amplify moves when redemption waves build.
Corporate and treasury float is the swing factor. Public companies now hold more than 1 million BTC, with Strategy’s tranches making up the bulk.
According to Bitcoin Treasuries, listed companies collectively hold around 5.1% of BTC supply, and drawdowns can push some treasuries underwater, raising the odds of forced or opportunistic selling in stress regimes.
Corporate holders face different pressures than ETF shareholders. They report mark-to-market losses in earnings, service debt with fixed schedules, and answer to equity analysts who model Bitcoin exposure as balance-sheet risk.
When Bitcoin drops 30%, a leveraged corporate treasury does not just lose paper value. It confronts margin calls, refinancing constraints, and board scrutiny.
That makes corporate float less sticky than long-term holder supply but more sensitive to capital-market conditions than pure exchange inventory.
Basis and the carry machine
The ETF launch cycle also reshaped Bitcoin derivatives markets.
CME Group’s explainer on spot-ETF-plus-futures mechanics lays out the basis trade: buy spot ETF shares, short CME Bitcoin futures, capture the spread between spot and futures prices.
After spot ETF launches, leveraged funds increased net short positioning in CME Bitcoin futures, consistent with hedged carry rather than outright bearishness, per the same CME analysis.
Open interest expanded through 2024 and into 2025 as institutional desks built positions, and basis behavior became a signal of arbitrage positioning rather than pure directional sentiment.
This matters for interpreting ETF flows. Amberdata’s recent commentary argues that big headline outflows since mid-October were concentrated and consistent with basis arbitrage unwinds rather than a uniform institutional exit.
When basis compresses, or funding rates flip negative, carry trades lose their edge, and desks unwind by redeeming ETF shares and covering futures shorts. The result can look like institutional selling in the flow data, but the underlying driver is mechanical rather than a shift in long-term conviction.
ETF plumbing now links spot demand to derivatives positioning in ways that complicate clean narratives about “smart money” flowing in or out.
Volatility compression and deeper liquidity
Bitcoin’s long-term realized volatility has nearly halved over the cycle, dropping from the mid-80% range to the low-40% range, according to a Glassnode and Fasanara partner note.
The same analysis points to multi-billion-dollar daily ETF trading volumes and a market structure that is materially different from previous cycles.
Regulated wrappers pull in allocators who would not touch spot Bitcoin on offshore exchanges, and those allocators bring execution discipline, risk limits, and compliance infrastructure that smooth out some of the wild price swings that defined earlier cycles.
Spot liquidity has deepened as market makers quote tighter spreads around ETF NAV, and the presence of institutional buyers who rebalance on schedules rather than panic sell on headlines creates a more stable bid during drawdowns.
But volatility compression is not the same as stability.
The concentration of Bitcoin in a small number of large holders, whether ETFs, corporate treasuries, or whale wallets, means that a single large liquidation or redemption wave can move markets more than diffuse retail selling ever could.
The Swiss National Bank chair rejected Bitcoin as a reserve asset in April 2025, citing volatility and liquidity criteria, a reminder that, even as market structure matures, the asset’s behavior under stress still fails the standards required for central bank reserve management.
What happens when treasuries face stress
The corporate treasury model for Bitcoin accumulation assumes rising prices and access to cheap equity or debt financing.
Strategy’s playbook of issuing convertible debt, buying Bitcoin, letting BTC appreciation cover the dilution and interest expense works in a bull market with low borrowing costs.
It breaks when Bitcoin drops below a company’s average cost basis, and credit markets tighten.
The same logic applies to smaller corporate holders and to any entity that leveraged up to buy Bitcoin, assuming the price would keep climbing.
ETFs do not face the same refinancing risk, but they do face redemption risk.
If a sustained bear market drives persistent outflows, authorized participants redeem shares and deliver Bitcoin back to the market, either through spot sales or custodian transfers that eventually reach exchanges.
The buffer that the ETF structure provides, delaying the transmission of selling pressure by days or weeks, does not eliminate the pressure. Instead, it just changes the timing and the execution path.
The result is that while ETFs reduce day-to-day volatility by keeping coins off exchanges, they do not prevent large drawdowns.
They redistribute selling pressure across time and across market participants, but the coins still exist, and the incentives to sell still respond to price.
The ledger rebalances, not disappears
The data support a reclassification of Bitcoin’s liquid supply map, not a claim that supply constraints guarantee price appreciation.
Glassnode’s “anchored float” vocabulary describes the portion of supply that trades actively versus the portion that sits dormant in long-term holder wallets, corporate balance sheets, or ETF custody.
As the exchange float shrinks and the ETF and corporate float grow, the marginal price-setting trades occur across venues with different microstructures, latencies, and participant profiles.
Basis trades link spot and derivatives markets more tightly. Corporate treasuries tie Bitcoin volatility to equity market stress and credit conditions.
Regulated funds attract capital that would not otherwise touch the asset but also introduce redemption mechanics that can amplify moves when sentiment turns.
The shift from exchange-dominated supply to custodian-and-treasury-dominated supply changes the selling pressure from continuous and reflexive to episodic and capital-markets-dependent.
It compresses realized volatility in ordinary conditions but does not remove tail risk. It creates new arbitrage opportunities and new sources of demand, but also new vulnerabilities tied to leverage, regulation, and institutional risk management.
The Bitcoin ledger now reflects a market where the largest holders are not anonymous whales or early adopters but publicly traded companies, registered investment products, and custodians managing billions on behalf of institutions.
That is a different beast, and it trades differently.