BlackRock-Led Bitcoin (BTC) ETFs Draw $2.65 Billion in Five-Day Inflow Streak

Whales Add 113,950 BTC

Bitcoin's largest mid-tier holders keep buying the dip. On-chain analytics data dated Sept. 23 shows whale wallets holding between 100 and 1,000 BTC have accumulated roughly 113,950 BTC since July 15, lifting their combined stash about 2.22% to approximately 5.24 million BTC. Santiment, whose dataset frames this cohort as one of the more reliable directional gauges in the Bitcoin (BTC) market, notes that over the past five years shifts in these wallets' balances have tracked price trends closely — and past accumulation waves by this group frequently surfaced just before, or during, sustained rallies. The steady buying implies many large holders are treating pullbacks as entry windows rather than exits, a bet that conviction will continue to HODL through volatility, which in turn can absorb sell-side pressure and cushion recoveries. Santiment does caution, however, that whale accumulation alone does not guarantee further upside: the signal has to be read alongside retail sentiment, fear gauges and exchange deposit flows. A separate Glassnode analysis from the same date adds the cycle dimension — Bitcoin's roughly 30% retracement from its all-time high is less than half as deep as the losses recorded at comparable stages of prior bear markets, when bottoms arrived within weeks. Glassnode argues the traditional four-year cycle template is not repeating cleanly this time and that every week without a delayed breakdown lowers the odds of a catch-down to old bear-market loss levels. The firm's framework still rests on historical cycle analogies, so traders reading long-cycle tools like the Bitcoin Rainbow Chart should treat the shallower correction as context, not a risk-free floor.

Five Straight ETF Inflow Days

Demand through the regulated wrapper has been just as persistent. US spot Bitcoin ETFs took in $346.98 million in net inflows on Sept. 23, a fifth consecutive session of gains that pushes the five-day total to $2.65 billion — the largest such stretch since Oct. 10, 2025. A shared flow update confirms the BlackRock-led tape. BlackRock's iShares Bitcoin Trust (IBIT) led the session with $166.29 million, nearly half the day's total, followed by Fidelity's FBTC at $143.24 million, Morgan Stanley's MSBT at $32.41 million and Ark Invest's ARKB at $5.04 million; the remaining products were flat. Earlier sessions frame the streak's scale: the funds pulled in $998.95 million on Sept. 21 — their biggest single day in roughly 11 months, with IBIT at $381.4 million, ARKB at $289.1 million and FBTC at $238.8 million — then added $714.75 million on Sept. 22, when IBIT contributed another $350.3 million and the newer MSBT drew $99 million. Cumulatively, IBIT's net inflows since launch stand at $65.0 billion and FBTC's at $11.0 billion, while all US spot Bitcoin ETFs combined have gathered $57.22 billion; total fund net assets reached $108.66 billion, about 6.42% of Bitcoin's market capitalization. The demand was not confined to the largest crypto asset — US spot Ether ETFs added $105 million on Sept. 23, including $50.8 million into BlackRock's ETHA. Notably, the streak held even as macro headlines whipsawed risk appetite across the wider Bitcoin market, from the Fed's first rate hike since 2023 (covered in our note on Bitcoin holding $84K) to the extended US-China trade truce. Readers tracking the market in real time can follow live spot and futures prices on Gate.

shared flow updatehttps://x.com/WuBlockchain/status/2102972781084184906

$82K Support Scores 90/100

COINOTAG's proprietary 42-indicator composite S/R scoring engine rates the $82,112 support at 90/100, driven by the ATR lower band, a fresh resistance-to-support flip and the Ichimoku Tenkan, while the $87,469 resistance scores 79/100 on Donchian upper band and swing-high confluence. Spot trades at $84,161, down 2.73% in 24 hours, with RSI at 64.84 and a bullish MACD inside an uptrend. Derivatives positioning is constructive rather than crowded: funding sits at a mildly positive 0.0013%, open interest is $16.42 billion, and the long/short account ratio of 1.29 (56.3% long) shows no leverage pile-up, while the Fear & Greed Index at 71 signals greed without euphoria. Bullish scenario: holding $82,112 opens a retest of $87,469; losing it — with $80,391 (79/100) as the next shelf — would invalidate the thesis.