Bitcoin Week: $80K Defended, ETFs Turn Green and Strategy Hits 848,000 BTC

Bitcoin ended the week at $83,569.80 on 11 October, down 3.42% from last week. It began the week at $86,531.90 and reached a weekly high of $86,995.40 on Monday. A hawkish Fed and an increase in the price of oil pushed the price of Bitcoin down to $80,433.60 on Thursday. It has since gained 3.9% from the low. Spot ETFs experienced net outflows of $678.9 million for the week but turned positive on Friday.

Monday 5 October: Week opens near the highs

The price of Bitcoin opened at $86,531.90 and fell 0.88% to $85,771.00. For the day, the price ranged from $85,014.20 to $86,995.40. Spot ETFs experienced net outflows of $89.8 million for the day. BlackRock’s IBIT experienced inflows of $69.9 million, while Fidelity’s FBTC and ARK 21Shares’ ARKB lost $74.5 million and $85.2 million, respectively.

Strategy also announced the purchase of 334 BTC for $28.7 million (1 to 4 October), bringing their total holdings to 848,000 BTC.

Tuesday 6 October: Inflows return

The price of Bitcoin fell 0.25% to $85,552.40 for the day, with a range of $85,141.40 to $86,675.40. Spot ETFs took in $118.8 million, with IBIT taking in $122 million and Morgan Stanley’s MSBT taking in $7.8 million.

Wednesday 7 October: Fed minutes push to the downside

The price of Bitcoin fell 2.61% to $83,322.10, in a range of $82,805.20 to $85,599.10, and broke the $84,000 support. The minutes from the September FOMC meeting showed the majority of members thinking it was likely appropriate to raise rates by year-end. The 10-year Treasury yield was around 5.29%, and oil was trading above $100 a barrel.

ETFs saw their largest single-day outflow since June, to the tune of $484.9 million. IBIT saw outflows of $207.7 million, FBTC $105.1 million and ARKB $101.7 million, along with GBTC ($39.3 million), BITB ($27.6 million) and HODL ($3.5 million).

Thursday 8 October: The low for the week

Bitcoin fell 1.91% to $81,733.80, after touching the week’s low of $80,433.60, and traded between that low and $83,509.40. ETFs saw an additional outflow of $244.1 million, of which $197.1 million was from FBTC. Outflows totalled $729 million for Wednesday and Thursday.

US government-related wallets moved 12,267 BTC (roughly $1.01 billion) from Bitfinex hack-related seizures, per Arkham. Nothing on-chain suggests they sold any.

Friday 9 October: Buying returns

Bitcoin rose 1.09% to $82,623.60 (range $81,611.70 to $83,481.80) and ETFs saw a $21.1 million inflow, of which $22.4 million was from IBIT.

Saturday 10 October: Quiet

Bitcoin rose 0.43% to $82,980.90 in a tight range of $82,537.70 to $83,164.10.

Sunday 11 October: Back above $83,500

Bitcoin rose 0.71% to $83,569.80 (range $82,797.70 to $84,170.20) and closed above $83,500 for the first time since Tuesday.

ETF flows (Farside)

Net flows for 5 to 9 October were -$678.9 million (-89.8, +118.8, -484.9, -244.1, +21.1). Compared to the week before (a flow of +$241.1 million), this was a significant shift. The outflows came mostly from the Fidelity, ARK, and Grayscale funds, while IBIT saw inflows on three of the five days.

Top five Bitcoin ETFs (by Bitcoin held)

As of 9 October, the iShares Bitcoin Trust, issued by BlackRock (IBIT), held around 804,754 Bitcoins. The second largest ETF by BTC is the Fidelity Wise Origin Bitcoin Fund (FBTC) with 180,630 Bitcoins. In third place, Grayscale Bitcoin Trust (GBTC) held 126,104 BTC, followed by the Grayscale Bitcoin Mini Trust (BTC) at 63,130 BTC. Fifth place by BTC was held by the Bitwise Bitcoin ETF (BITB) at 37,291 BTC. Together, these five ETFs hold approximately 1.21 million Bitcoins. ARKB (with 32,024 BTC) is sixth by BTC held. Of the top five ETFs by BTC, IBIT holds about two-thirds of the total.

Top five public treasury companies (by BTC held)

Strategy (MSTR) holds 848,000 Bitcoins (as of 4 October). Their average cost is about $75,441 per BTC, and so they are in profit at current prices.

Metaplanet holds 44,000 Bitcoins (as of 30 September), with net purchases of 1,000 BTC in the third quarter (they sold 10,000 and bought 11,000).

Twenty One Capital (XXI) holds 43,514 Bitcoins (no sales reported).

MARA Holdings has 35,577 Bitcoins (as of 30 June, latest report).

Strive (ASST) holds 29,462 Bitcoins (after a purchase of 2,000 Bitcoins, worth approximately $169 million, in the week to 2 October).

Bitcoin Core update

Bitcoin Core 32.0 is scheduled for release on 10 October. Release candidates were made available on 14 September (rc1) and 29 September (rc2). As of 11 October, the GitHub page for the release was still in progress, and I was unable to locate a final release. The current stable release is 31.1.

What’s in 32.0?

•     Improved fee estimation: Added a second estimator that looks at transactions waiting in the mempool to provide more timely fee estimates.

•     Faster block validation: Bitcoin nodes can read from their local databases on multiple threads (eight by default). This can speed up blockchain synchronisation.

•     Security fixes: A wallet command execution bug (present since Bitcoin Core 24.0, and only if walletnotify is enabled) and a memory exhaustion bug in the new web server.

•     PSBT version 2: Four commands that produce partially signed transactions (PSBTs) will now use version 2 of the PSBT format by default.

•     No change to the consensus rules.

What it means

Support: $80,434 (the low on 8 October), then $82,805 (the low on 7 October).

Resistance: $84,000 (broken on 7 October), then the week’s high of $86,995.

Upcoming: US September CPI release on 14 October and the FOMC meeting on 27 to 28 October.

Bitcoin was under selling pressure this week. The $80K level held again. ETFs flipped to inflows on Friday. There was continued buying into the dips, and Bitcoin finished the week well off the week’s lows.

Data as of 11 October 2026. Sources: Investing.com, CoinGecko, Coinranking, Farside Investors, Bitbo, BitcoinTreasuries.net, CoinDesk, The Block, Cryptoticker, Cryptobriefing, KuCoin, Babypips, GitHub (Bitcoin Core) and Delving Bitcoin.