U.S. spot Bitcoin ETFs bought about 1,620 BTC on Aug. 28, roughly 3.6 times the approximately 450 BTC miners create each day.

Per Farside Investors, net inflows totaled $178.9 million, the fourth consecutive positive session into Aug. 28. The supply side is fixed by protocol changes made in April 2024, when the block subsidy fell to 3.125 BTC, or about 450 BTC per day at an average 10-minute block time.

The demand impulse is directly measurable in coins. Using prices near recent trading levels, the Aug. 28 net dollar flow equates to around 1,600 BTC purchased by ETF vehicles in a single day, while new issuance remains near 450 BTC.

If that demand repeats over a span of sessions, it draws directly on the tradable float because ETF creations are backed by spot holdings in custody. Aug. 25 through Aug. 28 all printed positive totals, a sequence that coincided with a post Jackson Hole reset in rate expectations after Chair Jerome Powell said policy conditions may warrant easing, as shown in the Federal Reserve’s posted remarks.

Positioning through the fourth quarter centers on two linked variables, flow persistence and price elasticity. A simple translation of daily dollars into coins shows the scale.

At $50 million in average daily net creations, ETFs would absorb roughly 13,600 BTC over 30 trading days, 27,100 BTC over 60, and 40,700 BTC over 90.

At $100 million, the draw becomes about 27,100 BTC, 54,200 BTC, and 81,300 BTC over the same intervals.

At $150 million, the totals reach about 40,700 BTC, 81,300 BTC, and 121,900 BTC. A second lens fixes demand in issuance multiples, where one, two, and three times daily issuance over 60 trading days align to about 27,000 BTC, 54,000 BTC, and 81,000 BTC, respectively.

None of these figures embed a flow-to-price coefficient; they map the potential coin withdrawal relative to the steady 450 BTC of new supply.

Holdings data frame the available float. Trackers show roughly 1.292 million BTC now sit inside U.S. spot ETFs across issuers, led by IBIT, which holds about 747,000 BTC, according to WalletPilot’s ETF dashboard.

As creations accumulate shares, the underlying coins consolidate at custodians, which can amplify spot price sensitivity when order books are thin. The effect toggles with flows, and recent months have seen alternating streaks of creations and redemptions, a pattern visible in the rolling tables on Farside Investors.

Macro policy remains the background variable. Powell’s Aug. 22 Jackson Hole speech outlined a willingness to adjust rates as labor conditions evolve, which markets read as a higher probability of near-term easing.

Lower policy rates can recalibrate relative demand for duration and hedge assets, a channel that has historically supported gold and, by extension, spot-backed bitcoin funds when allocations are flowing.

The limits of this setup are straightforward. Dollar flows are volatile by day, creation mechanics vary by issuer, and price changes modify the BTC per dollar translation. Still, the arithmetic of the past week isolates the core dynamic.

On Aug. 28, U.S. spot funds added $178.9 million, about 1,620 BTC at recent prices, against roughly 450 BTC of new issuance. Aug. 28 was the fourth consecutive inflow day for the group.

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On-chain data shows that Bitcoin’s (BTC) “ancient supply” is increasing faster than new BTC daily issuance, according to a June 18 research by Fidelity Digital Assets.

The report treats ancient supply as Bitcoins that have remained unmoved for at least a decade, and it counted an average of 566 BTC entering the 10-year-plus cohort daily since April 2024, surpassing the 450 BTC miners currently add to circulation every day.

The milestone arrived less than a year after the 2024 block-reward halving cut issuance in half, redefining the network’s supply dynamics. 

Ancient supply represents more than 17% of all mined Bitcoin, about 3.4 million BTC worth roughly $360 billion at $107,000 per coin, up from near zero when the metric was first calculated at the start of 2019. 

Satoshi Nakamoto holds 33% of this stash, while another unknown portion may be irretrievably lost. However, analysts note that any coin can still be brought back into active use.

Conviction and volatility

Daily declines in the 10-year bucket occur less than 3% of the time, but the share rises to 13% when the threshold drops to five-year holders. 

The report highlighted that the post-2024 US election period increased churn among even the most steadfast wallets. Since November, the ancient supply has shrunk on 10% of trading days, quadrupling its historical average. 

Movement from 5- to 10-year holders appears more sensitive. Coins aged at least five years exited their bucket on 39% of days over the same span, triple the norm. 

The report linked that surge to first-quarter sideways prices, arguing that heightened distribution from older cohorts can mute short-term upside even while net scarcity rises.

HODL rate turns positive

Fidelity also assessed the “HODL rate,” defined as the ancient supply inflows minus new issuance.

The measure flipped positive in April 2024 and averages positive 116 Bitcoin per day, reinforcing the idea that a hardening core of holders is absorbing circulation faster than miners can replace it. 

Because Bitcoin’s issuance schedule is programmed to decrease with halvings, the firm projects that the circulating supply will reach 20% of all Bitcoin by that year and 25% by 2034, based on current trends.

Public corporations may accelerate the trend. Twenty-seven listed companies now collectively hold more than 800,000 BTC. 

Fidelity’s model predicted that the ancient supply will exceed 30% of the float by 2035 if firms with 1,000 BTC or more continue to hold coins on their balance sheets. 

Despite the suggested scarcity, it does not guarantee higher prices without the appropriate level of demand to absorb it.

However, a durable rise in long-term controlled coins tightens the float available to traders and increasingly ties price discovery to marginal flows. 

Fidelity concluded that Bitcoin now stands apart from commodities with elastic supply.

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The dog-themed bonk inu (BONK) token on Solana could be one to watch for in the coming weeks as a new token issuance platform uses part of its fees to buy the token, with nearly $1 million generated in the first three days after launch.

Letsbonk.fun, built by members of the BONK community and Raydium, went live late Sunday as a Bonk-focused token issuance platform. A portion of fees will help secure and support the Solana network by using the BONKsol validator, per tweets, with over 10,000 tokens already issued.

As of Tuesday, the biggest tokens on Letsbonk.fun are HOSICO ($30 million market cap) and LETSBONK ($5.3 million market cap).

“I expect the platform’s success to surprise many,” well-followed X user theunipcs told CoinDesk in a Telegram message. The user is colloquially known as “bonk guy” for a viral trade that turned $16,000 into $20 million at peak on a BONK futures trade.

“LetsBONKfun takes a more innovative and simplified approach to memecoin launches, focusing on ensuring that users and the Solana blockchain/ecosystem can capture a good portion of the value it creates,” he added.

“Pump.fun, has made over $600 million in fees since it launched a little over one year ago. Imagine what even a fraction of this would mean for BONK just in terms of sheer buy pressure,” theunipcs said.

BONK tokens are up 54% in the past week, data shows, with a bulk of that move coming after Letsbonk’s launch on Sunday.

Various BONK-tracked futures show a spike in open interest — or the number of unsettled futures bets — with the largest jumping from Saturday’s $170 million to over $250 million as of Tuesday, showing a bump in expectations of further price volatility.