Bitcoin whale wallets holding between 10 and 10,000 BTC accumulated 86,702 BTC — approximately $7 billion at current prices — over three weeks ending October 10, according to Santiment on-chain data. The number of addresses holding 100+ BTC reached 20,229, a 2026 high and an 11.2% year-over-year ...
"The increase draws from all three components of our process: activity, macro, and ETF flows." — Alex Saunders, Analyst, Citigroup
Bitcoin whale wallets holding between 10 and 10,000 BTC accumulated 86,702 BTC — approximately $7 billion at current prices — over three weeks ending October 10, according to Santiment on-chain data. The number of addresses holding 100+ BTC reached 20,229, a 2026 high and an 11.2% year-over-year increase. In the same period, U.S. spot Bitcoin ETFs recorded $678.9 million in weekly net outflows, retail holders continued selling, and leveraged long positions worth $1.19 billion were liquidated in a single 24-hour window.
The divergence between large-holder accumulation and ETF/retail outflows marks one of the widest buyer-seller splits of 2026. Bitcoin traded at approximately $83,500 on October 12, down 33.7% from its all-time high of $126,080 set October 6, 2025. Citigroup raised its 12-month price target to $113,000 from $82,000 on September 30, projecting $5 billion in crypto ETF inflows over the next year.
On-chain analytics firm Santiment reported that wallets classified as "whales" — holding between 10 and 10,000 BTC — added 86,702 BTC over the three weeks ending October 10. At an average price near $82,000, that represents approximately $7.1 billion in acquisitions. The group's aggregate holdings reached their highest level since April 23, 2026.
In the 72-hour window following the October 7 market decline specifically, whale wallets added roughly 15,000 BTC (approximately $1.24 billion), along with 166,000 ETH and 45 million XRP, according to on-chain tracking data reported by Lookonchain.
The total number of Bitcoin addresses holding 100 or more BTC climbed to 20,229 wallets, marking an 11.2% year-over-year increase and a new 2026 high, per KuCoin Research data citing Santiment.
A structural note: on-chain data does not distinguish between new purchases and wallet reshuffling. A holder moving coins from one self-custodied wallet to another registers identically to a new buy. The $7 billion figure represents net balance changes across the cohort, not confirmed new capital entering the market.
The ETH-to-BTC rotation is also visible in the data. According to analyst Ali Martinez, approximately 60 mega-whale addresses holding 10,000+ ETH emptied or consolidated their positions during a 60-day window leading into May 2026, with capital flows redirected toward BTC exposure. Exchange deposits for Ethereum surged during the same period, indicating active ETH liquidation by large holders.
The whale buying occurred against a backdrop of sustained institutional ETF selling. U.S. spot Bitcoin ETFs recorded $678.9 million in net outflows during the trading week of October 5-9, according to CoinGlass data.
The daily breakdown:
| Date | Net Flow | |------|----------| | Monday, Oct. 5 | -$89.9M | | Tuesday, Oct. 6 | +$118.8M | | Wednesday, Oct. 7 | -$484.9M | | Thursday, Oct. 8 | -$244.1M | | Friday, Oct. 9 | +$21.1M |
Wednesday's $484.9 million single-day outflow was the largest since mid-September. BlackRock's IBIT and Fidelity's FBTC accounted for the majority of selling. Month-to-date through the first seven trading days of October, U.S. spot Bitcoin funds were down $386.3 million, reversing a nine-session inflow streak in September worth approximately $3 billion.
Total U.S. spot Bitcoin ETF AUM stood at approximately $106 billion as of October 9, with cumulative net inflows of $57.1 billion since trading began January 11, 2024. The October outflows represent 0.6% of total AUM — significant directionally but contained in absolute terms.
Retail on-chain behavior mirrored the ETF selling. Santiment's data for October 1 through October 9 showed that while 100+ large whale cohorts were buying on every tracked day, retail-sized wallets were "selling entirely," according to their on-chain daily summaries.
The October 7-9 price decline triggered one of 2026's larger liquidation cascades. Bitcoin dropped below $81,000 on October 8, catalyzed by rising oil prices, geopolitical tensions in the Middle East, and a broader risk-off move in equities.
CoinGlass data showed $1.19 billion in leveraged positions liquidated over a 24-hour period spanning October 8-9:
By asset, Ethereum led liquidations at $311 million, followed by Bitcoin at $238 million. The remaining $640 million was spread across altcoin positions. The lopsided long-to-short ratio indicates the market was overwhelmingly positioned for higher prices before the decline, amplifying the sell pressure when stops triggered.
An earlier event on October 7 had already cleared approximately $974 million, including $896 million in long positions, suggesting that leveraged positioning had been rebuilt and liquidated twice within 48 hours.
During the same week, MARA Holdings (NASDAQ: MARA) transferred 996.105 BTC ($81.13 million) to Galaxy Digital on October 9, according to blockchain tracking firm Lookonchain. The transaction represents approximately 2.8% of MARA's total Bitcoin holdings.
MARA has stated publicly that it intends to "continue to monetize bitcoin opportunistically to fund operations and capital projects," directing proceeds toward operating expenses, acquisitions, and debt repayment. The company has been shifting resources toward artificial intelligence and high-performance computing.
Whether Galaxy Digital sold the Bitcoin on-market or received it for OTC or custodial purposes has not been confirmed. The transfer coincided with the week's heaviest selling pressure, though a causal relationship is unconfirmed.
Citigroup analyst Alex Saunders raised his 12-month Bitcoin price target to $113,000 from $82,000 on September 30, citing three factors: increased trading activity, a supportive macroeconomic backdrop, and expected resumption of ETF inflows.
Saunders noted that "debasement fears alongside SEC agency rulemaking, spurred paradoxically by the failed Clarity Act, helped crypto reclaim technical levels."
The bank simultaneously raised its Ethereum target to $3,028 from $2,240, and projected $5 billion in crypto ETF inflows over the coming 12 months.
Context for the revision: In July 2026, Citigroup had cut its Bitcoin target from $112,000 to $82,000, citing stagnant ETF flows and legislative uncertainty. The October upgrade represents a near-complete reversal three months later. At current prices near $83,500, the $113,000 target implies approximately 35% upside.
The $5 billion inflow projection is notable for its modesty. U.S. spot Bitcoin ETFs attracted $57.1 billion in cumulative net flows in their first 21 months. A $5 billion annual run rate would represent a significant deceleration from 2024-2025 pace, suggesting Citigroup sees ETF demand maturing rather than accelerating.
On October 7, 24,073 BTC — approximately $2 billion — left exchanges in a single day, the largest net withdrawal since March 1, according to CoinGlass. Exchange outflows of this magnitude are typically interpreted as coins moving to cold storage or self-custody for long-term holding.
This data point aligns with the whale accumulation narrative: coins are being acquired and removed from liquid exchange supply simultaneously. However, exchange outflow data carries the same caveats as wallet-level tracking — internal exchange wallet movements can register as outflows, and institutional custodial arrangements may not reflect true buying intent.
As of October 12, Bitcoin traded at approximately $83,500, situated between clearly defined support and resistance levels:
Bitcoin hit its all-time high of $126,080 on October 6, 2025. The current price represents a 33.7% drawdown from peak. The deepest 2026 drawdown reached 54.2%, with Bitcoin bottoming at approximately $57,800 in July before recovering to current levels.
Technical indicators show neutral-to-slightly-bearish momentum, with oscillators failing to confirm the recovery from July lows. The 200-day moving average remains intact, suggesting the broader recovery structure has not broken.
The data presents a market in structural disagreement. On one side, whale wallets are executing the largest sustained accumulation since spring 2026, pulling coins off exchanges and expanding their BTC holdings at the expense of ETH positions. On the other, ETF investors are withdrawing hundreds of millions weekly, retail holders are selling, and leveraged traders have been liquidated twice in 48 hours.
Historical precedent suggests that whale accumulation during retail capitulation has preceded price recoveries in prior Bitcoin cycles, but the current macro environment — elevated oil prices, geopolitical risk, and persistent rate uncertainty — introduces variables absent from earlier episodes. The gap between Citigroup's $113,000 target and Bitcoin's $83,500 spot price quantifies the implied upside if accumulation patterns hold. Whether they do depends on whether the $5 billion in projected ETF inflows materialize or whether October's outflow trend extends.
The market's next inflection point likely hinges on whether ETF flows reverse. The $106 billion in spot ETF AUM represents a structural buyer base that did not exist in prior cycles. Its behavior — not whale wallets, which have always accumulated dips — will determine whether this divergence resolves higher or lower.