Crypto & Web3 — 2026年9月21日 週次レポート
Crypto & Web3のニュース＆アップデート — すべての記述に一次ソースのリンク付き。
重要な発見
エグゼクティブサマリー（4件）
- •The week's defining event was the Clarity Act's Senate failure and the immediate regulatory pivot it triggered: within 24 hours, the SEC issued a five-year Innovation Exemption for tokenized securities, the CFTC sent crypto rules to the White House, and the House advanced a crypto tax bill. The U.S. crypto regulatory landscape has structurally shifted from a legislative-first to an agency-rulemaking-first model, with implications for every market participant that had been waiting for congression…
- •The Federal Reserve's first rate hike since 2023 — feared as a crypto market killer for weeks — instead triggered a relief rally that pushed DeFi TVL above $93 billion and Bitcoin above $80,000. The market's positive response to the actual hike, after weeks of selling on hike fears, is the most important macro signal of the week: it suggests crypto markets have absorbed the tightening cycle's psychological weight and are now trading on forward guidance rather than backward-looking rate fears.
- •Circle's Arc launch with BlackRock, DTCC, Mastercard, and Visa as founding validators represents the most significant institutional blockchain infrastructure event of the reporting period — not because of its first-day activity (dominated by memecoins) but because of what the validator set signals: the world's largest securities settlement infrastructure (DTCC) and two of the world's largest payment networks (Mastercard, Visa) have committed to a stablecoin-native settlement chain, a structural …
- •The week's convergence of the SEC's tokenized securities exemption, S&P Global's OpenZeppelin acquisition, Deutsche Bank's imminent crypto custody launch, and Kaiko's $110 million Series B with S&P Global and BNP Paribas collectively mark the transition of institutional crypto infrastructure from pilot programs to production buildout — a phase change that the Clarity Act's failure may paradoxically accelerate by forcing institutions to build around regulatory certainty at the agency level rather…
今回の要点（15件）
- 1.The Clarity Act failed its Senate cloture vote on September 15–16, with 17 state attorneys general opposing it; CoinDesk reported the failure 'essentially ends market structure legislative work in the Senate for 2026' [4].
- 2.Within 24 hours of the Clarity Act's failure, the SEC issued its Innovation Exemption for tokenized NMS securities on September 17, the CFTC sent crypto rules to the White House on September 18, and the House Ways and Means Committee advanced the Digital Asset Tax Certainty Act on September 16 [6], [4].
- 3.Circle launched Arc on September 16 — an EVM-compatible L1 with USDC as the native gas token and a founding validator cohort including BlackRock, DTCC, Mastercard, Visa, Standard Chartered, and SBI Group [2].
- 4.Arc's first day was dominated by memecoins rather than institutional activity, with traders having moved on by the following morning [4].
- 5.The Federal Reserve raised rates by 25 basis points on September 17 — the first hike since July 2023 — placing the fed funds rate at 3.75%–4.0%; Bitcoin rose 0.88% on the day as the Fed projected only one further hike [4].
- 6.DeFi TVL surged from approximately $86.2 billion on September 16 to $93.3 billion by September 19, with Lido recovering to $25.8 billion and Aave to $19.0 billion [7].
- 7.Bitcoin ETFs shed $450 million on September 16 — the most since June — before recovering with $625.3 million in inflows by September 19 [7], [4].
- 8.Bitcoin ended the week near $81,252, down just 1.5% in its historically weakest month and on track for its first quarterly gain in a year despite rising rates, surging oil, and a stronger dollar [4].
- 9.S&P Global acquired OpenZeppelin on September 17, targeting technological risks facing banks and asset managers onchain, building on its recent investment in Kaiko [4].
- 10.ECB President Christine Lagarde intervened to block Binance's EU MiCA license, with high-level intervention leading Greece to stall an application regulators had previously deemed complete [4].
- 11.The BIS published Working Paper No. 1377 on September 15 on measuring stablecoin, crypto, and DeFi ecosystems, while ECB Executive Board members delivered speeches on 'Central banks on-chain' and 'building Europe's tokenised financial market' [10].
- 12.Ethereum's Glamsterdam upgrade cleared a rehearsal on September 17 with a proposed October 6 public test, but Ethereum and Base failed to agree on a common wallet standard [4].
- 13.Two Robinhood engineers were charged with insider trading using Hyperliquid perpetuals, with prosecutors alleging they used confidential token listing data to front-run announcements [4].
- 14.Robinhood Chain's seven-day average fees fell 82% while transaction counts slipped 6%, with approximately $1.5 billion a day still changing hands [4].
- 15.Polygon announced Stable.com added Polygon for direct-to-bank stablecoin transfers on September 17, the latest addition to the Open Money Stack ecosystem [5].
市場動向
DeFi TVL Surges to $92–93B as Post-Fed Relief Rally Takes Hold
DeFi TVL climbed from approximately $86.2 billion on September 16 — its weekly low following the Clarity Act's Senate failure — to $93.3 billion by September 19, a gain of more than 8% in three days, before settling near $92.3 billion on September 20 [7]. Lido recovered from $23.4 billion to $25.8 billion and Aave from $17.6 billion to $19.0 billion over the same period. The rally followed the Federal Reserve's 25 basis point rate hike on September 17 — the first since July 2023 — with Bitcoin r…
Bitcoin Demonstrates Macro Resilience Through a Week of Compounding Headwinds
Bitcoin navigated the Clarity Act's Senate failure, a Fed rate hike, a Bank of Japan rate increase, and record diesel prices within a single week, ending near $81,252 on September 20 — down just 1.5% in its historically weakest month and on track for its first quarterly gain in a year [4]. The week's price range ran from approximately $75,722 on September 16 to above $80,769 on September 18, with Bitcoin ETFs shedding $450 million on September 16 — the most since June — before recovering with $6…
Stablecoin Market Holds $304–305B as Institutional Settlement Infrastructure Expands
The total stablecoin market cap held near $304–305 billion across the week, with USDT at approximately $183.2–183.4 billion and USDC at approximately $73.6–73.9 billion [8]. The week's most significant stablecoin development was the launch of Arc, Circle's EVM-compatible L1 with USDC as the native gas token, backed by a founding validator cohort including BlackRock, DTCC, Mastercard, Visa, Standard Chartered, and SBI Group [2]. Ripple's RLUSD grew 33.65% over 30 days to $2.35 billion, with Rippl…
RWA Tokenization Gains a Regulated U.S. Pathway as SEC Opens Tokenized Stock Trading
The SEC issued its 'Innovation Exemption' on September 17, providing a five-year blanket exemption for listing and trading tokenized NMS securities without registering as an exchange [6]. Goldman Sachs and Citizens analysts identified Coinbase, Robinhood, and Circle as early winners, citing new opportunities in custody, tokenization infrastructure, and stablecoin settlement [4]. The RWA active AUM tracked by DeFi Llama stood at approximately $29.7–30.8 billion across the week, with Robinhood's 1…
Onchain Perpetuals and Prediction Markets Reach New Institutional Scale
Perps volume tracked by DeFi Llama reached $25.8 billion on September 16 and $26.9 billion on September 19, with weekly perps volume of $147–152 billion by week's end [7]. Payward (Kraken's parent) announced plans to offer U.S. clients onchain perpetual futures on Hyperliquid, leveraging its $550 million acquisition of Bitnomial to become the first registered U.S. exchange to deploy markets on the Hyperliquid protocol [4]. Dune Analytics' September 2 research documented that Hyperliquid's WTI pe…
競合動向
Arc Launch Reframes Circle From Stablecoin Issuer to Financial Market Infrastructure
Circle launched Arc on September 16 — an EVM-compatible L1 with USDC as the native gas token, sub-second finality, and a founding validator cohort including BlackRock, DTCC, Galaxy, Mastercard, Visa, Standard Chartered, and SBI Group [2] (company announcement — may reflect promotional framing). Arc's first day was dominated by memecoins rather than institutional activity, with traders having moved on by the following morning [4]. Despite the inauspicious launch activity, Jeremy Allaire called Ar…
Ethereum Glamsterdam Upgrade Advances Toward Mainnet With Capacity Expansion
Ethereum's Glamsterdam upgrade cleared a rehearsal on September 17, with the test network raising its limit on work per block toward 200 million gas as developers prepared for a proposed October 6 public test [4]. Ethereum confirmed Glamsterdam dates on September 18 but warned that free test ether could allow fake builders to outbid rivals and withhold transaction payloads, with client teams receiving half the usual review time before Sepolia [4]. Separately, Ethereum and Base failed to agree on…
Robinhood Chain Faces Fee Compression as Tokenized Equity Dispute Evolves
Robinhood Chain's seven-day average fees fell 82% and transaction counts slipped 6%, with approximately $1.5 billion a day still changing hands [4]. Standard Chartered predicted Arbitrum's ARB token could rise 70-fold to $10, citing Robinhood Chain revenue and tokenization as making Arbitrum a favored network for traditional finance [4]. Separately, two Robinhood engineers were charged with insider trading using Hyperliquid perpetuals, with U.S. prosecutors alleging they used confidential Robinh…
Polygon Expands Open Money Stack With Direct-to-Bank Stablecoin Transfers
Polygon's blog announced on September 17 that Stable.com added Polygon for direct-to-bank stablecoin transfers, the latest addition to the Open Money Stack ecosystem [5] (company announcement — may reflect promotional framing). This follows the September 9 'One API for Any Payment' positioning article and builds on prior integrations including Revolut's EURR euro stablecoin launch on Polygon and the Bank of England Digital Pound Lab Phase 2 participation [5]. The direct-to-bank integration is a …
S&P Global Acquires OpenZeppelin in Tokenized Finance Risk Push
S&P Global acquired OpenZeppelin on September 17, targeting the technological risks facing banks and asset managers operating onchain, building on its recent market-data investment in Kaiko [4]. Kaiko separately extended its Series B funding round to $110 million with S&P Global and BNP Paribas joining [4]. Deutsche Bank was reported to be close to debuting crypto custody for institutions, supporting bitcoin, ether, and stablecoins including USDC and EURC [4]. The pattern of traditional financia…
制度・規制動向
Clarity Act Fails in Senate; U.S. Agencies Pivot to Administrative Rulemaking
The Clarity Act failed its Senate cloture vote on September 15–16, with 17 state attorneys general urging rejection and Republicans and Democrats unable to bridge differences on ethics provisions and DeFi/credit union clauses [4]. CoinDesk reported the failure 'essentially ends market structure legislative work in the Senate for 2026' [4]. In direct response, the SEC issued its 'Innovation Exemption' for tokenized NMS securities on September 17 [6], the CFTC sent crypto rules to the White House …
SEC Innovation Exemption Creates Regulated U.S. Pathway for Tokenized Securities
The SEC issued a blanket five-year exemption on September 17 for listing and trading tokenized NMS securities without registering as an exchange, confirmed across both the SEC's official website and CoinDesk reporting [6], [4]. The SEC described the move as 'a significant step forward, within its statutory authority, to bring America's capital markets into the digital age by facilitating onchain trading of certain tokenized stocks' [6]. The exemption keeps trading volumes, access, and issuer rig…
BIS Publishes New Research on Measuring DeFi Complexity and Stablecoin Ecosystems
The BIS published Working Paper No. 1377 on September 15, titled 'Hidden by complexity? Measuring stablecoin, crypto and decentralised finance ecosystems,' noting that DeFi data presents a distinctive paradox: every data point is publicly recorded and accessible, yet deriving meaningful measurements remains challenging [10]. The paper was authored by Timothy Aerts, Ronald Heijmans, Jan Paulick, and Violeta Vuletic. ECB Executive Board member Piero Cipollone delivered a speech on September 15 tit…
ECB Blocks Binance EU MiCA License; UK Signals End of Light-Touch Era
ECB President Christine Lagarde intervened to block Binance's EU MiCA license application, with high-level intervention leading Greece to stall an application that regulators had previously deemed complete, according to reporting by the Wall Street Journal [4]. Separately, the UK signaled the end of its 'light-touch' era with a multi-agency raid on peer-to-peer crypto hubs, with increased enforcement coinciding with detailed regulatory guidance issued to crypto firms ahead of the full framework …
Crypto Tax Legislation Advances in House as Clarity Act Replacement Strategy Emerges
The House Ways and Means Committee advanced the Digital Asset Tax Certainty Act on September 16, which would ease complicated tax burdens for everyday use of cryptocurrencies, though Trump's industry ties spurred some pushback [4]. Coin Center published a critique on September 16 arguing the crypto tax bill 'gets block rewards wrong,' perpetuating what it called a legal mistake made by the IRS [11]. The House panel had shared the crypto tax bill ahead of a hearing on September 15 [4]. The tax bi…
ソース活動
先週からの変化
Clarity Act Fails Senate; Agency Rulemaking Fills the Gap
The Clarity Act failed its Senate cloture vote on September 15–16, with 17 state AGs opposing it and bipartisan negotiations collapsing [4]. Within 24 hours, the SEC issued its Innovation Exemption for tokenized securities on September 17 [6], the CFTC sent crypto rules to the White House on September 18 [4], and the House Ways and Means Committee advanced the Digital Asset Tax Certainty Act on September 16 [4]. The failure marks the end of 2026 legislative market structure work and the beginnin…
Arc Blockchain Launches With Institutional Validator Set Including BlackRock and DTCC
Circle's Arc network launched mainnet on September 16 as an EVM-compatible L1 with USDC as the native gas token and a founding validator cohort including BlackRock, DTCC, Mastercard, Visa, Standard Chartered, and SBI Group [2]. Arc data was available on Dune from the first block [1]. Despite Arc's first day being dominated by memecoins rather than institutional activity [4], the validator set positions Arc as a direct competitor to traditional financial market infrastructure rather than to other…
SEC Issues Innovation Exemption for Tokenized NMS Stock Trading
The SEC issued a blanket five-year exemption on September 17 for listing and trading tokenized NMS securities without registering as an exchange, confirmed on the SEC's official website [6] and corroborated by CoinDesk [4]. The exemption keeps synthetic stock tokens outside the framework and tightly controls trading volumes, access, and issuer rights. Goldman Sachs and Citizens analysts identified Coinbase, Robinhood, and Circle as early beneficiaries [4].
Fed Hikes 25bps; Crypto Rallies Through First Rate Increase Since 2023
The Federal Reserve raised its benchmark rate by 25 basis points on September 17 — the first hike since July 2023 — placing the fed funds rate range at 3.75%–4.0% [4]. Bitcoin rose 0.88% on the day to $76,621 as the Fed's projections implied only one further hike, and DeFi TVL surged from $86.2 billion to $93.3 billion over the following two days [7]. The Bank of Japan also raised rates by 25 basis points, with Bitcoin topping $77,000 following the BOJ move [4]. The crypto market's positive resp…
Ethereum Hegotá and Glamsterdam Upgrades Progress; Wallet Standard Fragmentation Emerges
Ethereum's Glamsterdam upgrade cleared a rehearsal on September 17 with a proposed October 6 public test date [4], advancing from the Hegotá scoping and EIP tier list published in the prior reporting period [3]. However, Ethereum and Base failed to agree on a common wallet standard — Ethereum advancing EIP-8141 while Base backed EIP-8130 — creating ecosystem fragmentation [4]. Ethereum confirmed Glamsterdam dates on September 18 but warned of fake builder risks with half the usual client review …
示唆・見るべき論点（9件）
- 1.The Clarity Act's failure and the immediate agency response — SEC exemption, CFTC rulemaking, House tax bill — reveals that U.S. crypto regulation has a functional bypass mechanism: when Congress fails, agencies act. This is not a new dynamic in U.S. financial regulation, but it is new for crypto, and it means that the industry's multi-year investment in legislative lobbying may have been less important than its engagement with agency rulemaking processes.
- 2.Arc's first-day memecoin domination is a recurring pattern in institutional blockchain launches: the infrastructure is built for institutions, but retail speculators arrive first. The more important signal is the validator set — DTCC's participation in particular means that Arc has a path to becoming the settlement layer for tokenized securities that the SEC's Innovation Exemption just created a market for.
- 3.The Ethereum-Base wallet standard fragmentation (EIP-8141 vs. EIP-8130) is a competitive gift to Arc and other institutional chains that can offer predictable, unified developer environments. Every time Ethereum's ecosystem fragments on a developer-facing standard, it strengthens the case for purpose-built institutional chains with more centralized governance.
- 4.Bitcoin's resilience through the Clarity Act failure, Fed hike, BOJ hike, and record diesel prices — ending the week above $81,000 — is the strongest empirical evidence yet that Bitcoin's macro correlation has structurally shifted. The asset is now behaving more like gold (which also held up) than like a risk asset (which sold off on AI safety concerns and rate hike fears).
- 5.The ECB's intervention to block Binance's MiCA license — despite the application being deemed complete by regulators — signals that MiCA compliance is necessary but not sufficient for EU market access. Political risk at the ECB level is now a material factor for any large crypto exchange seeking EU authorization, which will likely accelerate the fragmentation of the EU crypto market into smaller, locally licensed operators.
- 6.S&P Global's acquisition of OpenZeppelin, combined with its Kaiko investment, is building a vertically integrated risk and data infrastructure for institutional DeFi: Kaiko provides market data, OpenZeppelin provides smart contract security auditing and tooling. The combination positions S&P Global to offer institutional-grade risk assessment for onchain assets in the same way it does for traditional securities.
- 7.The two Robinhood engineer insider trading charges using Hyperliquid perpetuals illustrate a new category of market manipulation risk that existing securities law was not designed to address: using confidential information about a centralized exchange's token listing decisions to trade on a decentralized perpetuals protocol. This gap — between the information source (regulated exchange) and the trading venue (unregulated DeFi) — will likely become a regulatory focus as onchain perpetuals volumes…
- 8.The BIS Working Paper on measuring DeFi complexity, combined with ECB speeches on 'central banks on-chain' and 'building Europe's tokenised financial market,' signals that European monetary authorities have moved from studying DeFi to planning their own participation in tokenized financial markets. The measurement paper is a prerequisite for regulation; the ECB speeches signal that regulation is being designed for a world where central banks are themselves onchain participants.
- 9.Robinhood Chain's 82% fee compression while maintaining $1.5 billion in daily transaction volume suggests that the chain is in a fee-discovery phase where transaction volume is being subsidized to build network effects. This is a familiar pattern from Layer-2 scaling wars, but the combination with the insider trading charges and the SEC's tokenized securities framework — which leaves synthetic stock tokens outside the regulated pathway — creates a more complex competitive environment than Robinh…
信頼度サマリー
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参照ソース一覧
Dune Analytics blog covering Arc network mainnet launch on September 16, with Arc data available from the first block; also covers September 11 research on onchain payments and September 2 RWA dataset launch
Detailed Arc network launch article describing EVM-compatible L1 with USDC as gas token, sub-second finality, and founding validator cohort including BlackRock, DTCC, Mastercard, Visa, Standard Chartered, and SBI Group
Ethereum Foundation blog covering Hegotá EIP tier list (September 7), protocol priorities through 2029, Glamsterdam Platåberget testnet announcement (August 17), and EF Protocol Reddit AMA announcement for September 16
CoinDesk daily news coverage from September 13–20, 2026 covering Clarity Act failure, SEC Innovation Exemption, Fed rate hike, Arc launch, Robinhood engineer insider trading charges, ECB MiCA intervention, S&P Global OpenZeppelin acquisition, and crypto market developments
Polygon blog announcing Stable.com addition for direct-to-bank stablecoin transfers on September 17, building on Open Money Stack ecosystem including prior Revolut EURR launch and Bank of England Digital Pound Lab Phase 2 participation
SEC website confirming Innovation Exemption for tokenized NMS stock trading issued September 17, described as facilitating onchain trading of certain tokenized stocks within statutory authority; also confirms September 17 roundtable on 24-hour trading preparations
DeFi Llama overview tracking TVL rising from $86.2 billion on September 16 to $93.3 billion on September 19 before settling near $92.3 billion on September 20; stablecoin market cap holding near $304–305 billion throughout
DeFi Llama stablecoins dashboard showing total market cap near $304.3 billion with USDT at $183.2 billion and USDC at $73.9 billion; RLUSD up 33.65% over 30 days to $2.35 billion
DeFi Llama RWA dashboard showing total active AUM near $29.7–30.8 billion across the week; Robinhood's 194 tokenized assets growing 12.67% over seven days; RWA perps open interest at $16.3 billion
BIS publications including Working Paper No. 1377 on measuring stablecoin and DeFi ecosystems (September 15); ECB speeches on central banks on-chain and building Europe's tokenised financial market (September 15); FSI Chair speech on supervising banks in AI-shaped economy (September 18)
Coin Center blog published September 16 critiquing the Digital Asset Tax Certainty Act for getting block rewards wrong, arguing it perpetuates a legal mistake made by the IRS; also covers BRCA changes and Lewellen lawsuit
Dune Analytics trending blockchains data showing Arc appearing with initial activity on September 16, alongside Ethereum at 45,868 weekly active addresses, Robinhood Chain at 405, and Solana at 5,679
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