Bitcoin Closes Week Above $80,000 as Sentiment Turns to Greed
Bitcoin gains 4.20% over seven days, sentiment swings from Fear to Greed in four sessions, and altcoin dispersion widens sharply.
Sun, 20 Sep 2026 08:00:50 GMT · written by the desk from live feeds
Key points
- •Bitcoin closed the week at $80,472, up 4.20% over seven days and 4.11% across the 168-hour history window, with a weekly range of $75,898 to $81,036.
- •Desk sentiment moved from 41 (Fear) on 17 September to 67 (Greed) by 20 September; the external fear and greed index reads 71, labelled Greed.
- •Zcash rose 28.40% and NEAR Protocol 48.60% over seven days, while Monero fell 9.33% in 24 hours.
- •Bitcoin ETF flows were positive for the week with a $433M Friday inflow, as ether funds snapped a four-week inflow streak, per The Block.
- •OKX BTC-USDT perpetual funding sits at 0.01% per eight hours with $2.48B open interest; Bitcoin network fees are 1-2 sat/vB.
A week that turned on its head
Bitcoin ended the week at $80,472, up 4.20% over seven days and 4.11% across the 168 hours tracked in the desk's history series. The move did not come quietly. The same stretch that began near $77,297 printed a weekly low of $75,898 before recovering to a high of $81,036.
The daily brief titles tell the story in sequence. On 14 September Bitcoin held near $77,500. By 16 September it was slipping toward $76,000 as the Clarity Act failed a Senate vote. On 17 September the Fed hiked, and Bitcoin held above $76,000. Then the tone shifted: above $77,000 on 18 September, above $81,000 on 19 September, above $80,000 on 20 September.
Sentiment swings from Fear to Greed
The desk's own sentiment reading moved from 41 (Fear) on 17 September to 52 (Neutral) on 18 September, 62 (Greed) on 19 September and 67 (Greed) on 20 September. The external fear and greed index sits at 71, labelled Greed, unchanged from yesterday.
That is a fast four-session repricing of mood. Market participants typically watch whether such shifts are confirmed by spot volumes — and here the picture is more mixed. Bitcoin's 24-hour volume stands at $25.23B, while the wider market's 24-hour turnover is $79.96B against a total market capitalisation of $2.74T. The global market cap is down 4.32% over 24 hours even as the weekly trend is positive.
Bitcoin dominance reads 58.96%.
Altcoin dispersion widens
The past 24 hours divided the top ten sharply. Solana rose 7.30% over seven days to $108.72, though it is down 3.50% on the day. XRP sits at $1.38, up 1.40% on the week and down 3.90% on the day. BNB is up 3.00% weekly at $749.59. Ethereum trades at $2,575.17, up 2.40% over seven days and down 1.96% over 24 hours.
Zcash was the week's standout in the top ten: $1,449.87, up 28.40% over seven days, though down 6.10% in the last 24 hours. NEAR Protocol gained 48.60% on the week to $3.47 despite falling 5.87% on the day. Avalanche rose 29.90% weekly to $9.59, with 12.87% of that coming in the last 24 hours. Ethena gained 40.80% over seven days to $0.195161.
On the losing side of the day, Monero fell 9.33% to $518.83, Canton dropped 4.52% to $0.105121, and Aave slipped 3.95% to $137.76. MemeCore was the largest 24-hour gainer among tracked assets at 35.21%, trading at $1.75.
Headline flow around the altcoin complex was busy. Bitcoinist reported Optimism releasing a required op-batcher v1.17.0 upgrade, NEAR shipping nearcore 2.14.0 RC with a protocol and database upgrade, and an Avalanche Helicon upgrade set for 22 September mainnet activation.
DeFi and the policy backdrop
Total value locked across DeFi stands at $92.30B. Ethereum leads the chain table at $52.05B, ahead of Solana at $6.13B, Base at $5.86B, BSC at $5.66B and Tron at $5.54B. Bitcoin-hosted TVL reads $4.37B.
Governance and protocol news clustered around lending and liquid staking. Bitcoinist reported Aave V4 going live on Arc with USDC, EURC, cirBTC and WETH, a separate Aave proposal bringing Anchorage-custodied Bitcoin into the V4 lending model, a Uniswap proposal to extend protocol fees to Arc, Lido completing the wind-down of its Simple DVT module, and a Lido DAO vote on a contingent 7.5M LDO market-making mandate.
The regulatory thread ran alongside. Decrypt covered how the Clarity Act's defeat handed the SEC and CFTC the wheel on crypto, while CoinDesk looked at what was in the bill and what replaces it. On the institutional side, The Block reported Bitcoin ETFs eking out a positive week with a $433M Friday inflow as ether funds snapped a four-week inflow streak. CoinTelegraph reported REX launching a 2x leveraged ETF tied to Bitcoin treasury firm Strive, and Kalshi filing for US stock perpetual futures, joining Coinbase.
Derivatives, fees and network state
Funding on the OKX BTC-USDT perpetual swap stands at 0.01% per eight hours. Open interest on that venue is $2.48B. The next funding is scheduled ahead.
Bitcoin network fees are low: 2 sat/vB for the fastest confirmation, 1 sat/vB at the half-hour, hour and economy tiers. Difficulty sits 6.40% through its current adjustment period, with a projected change of -5.03% and 1,887 blocks remaining to the retarget.
One thread worth noting for context: Decrypt reported that Bitcoin's sharpest rally in two years ran almost entirely on short liquidations. That framing matters when reading a week where sentiment moved from Fear to Greed in four sessions while global market cap still fell 4.32% over the last 24 hours.
Bitcoin remains 36.17% below its all-time high of $126,080.
Written from this data — audit every number
The exact data bank handed to the model (deepseek / deepseek-flash) at 2026-09-20T08:00:50.372Z. The model may use nothing else. Sources: CoinGecko, Alternative.me, DeFiLlama, mempool.space, OKX, and the RSS headlines listed.
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{
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{
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{
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{
"title": "Bitcoin ETFs eke out positive week with $433 million Friday inflow as ether funds snap four-week inflow streak",
"source": "The Block",
"published_at": "2026-09-19T18:01:09.000Z"
},
{
"title": "How the Clarity Act's Defeat Handed the SEC and CFTC the Wheel on Crypto",
"source": "Decrypt",
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{
"title": "VanEck criticizes Metaplanet over executive dilution despite compensation cuts",
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{
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{
"title": "Clarity Act, we hardly knew ye: We look at what was in the bill and what's replacing it",
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"this_weeks_daily_brief_titles": [
{
"date": "2026-09-20",
"title": "Bitcoin Holds Above $80,000 as Greed Persists, Altcoins Surge"
},
{
"date": "2026-09-19",
"title": "Bitcoin Holds Above $81,000 as Greed Returns to the Tape"
},
{
"date": "2026-09-18",
"title": "Bitcoin Tops $77,000 as Zcash Surges 42% and NEAR Leads Altcoin Gains"
},
{
"date": "2026-09-17",
"title": "Fed Hikes, Bitcoin Holds Above $76,000"
},
{
"date": "2026-09-16",
"title": "Bitcoin Slips Toward $76K as Clarity Act Fails Senate Vote"
},
{
"date": "2026-09-15",
"title": "Bitcoin Holds Near $77,400 as Clarity Act Vote Looms"
},
{
"date": "2026-09-14",
"title": "Bitcoin Holds Near $77.5K as Market Cap Slips 2.41%"
}
]
}This is automated market commentary generated from public data feeds. It is not financial advice. Cryptocurrency markets are volatile — do your own research and never invest more than you can afford to lose.