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ETF Flows Roar Back, SEC Kicks the Can (Again), and RWAs Inch Deeper Into DeFi

September 12, 2025

ETF Flows Roar Back, SEC Kicks the Can (Again), and RWAs Inch Deeper Into DeFi

ETF Flows Roar Back, SEC Kicks the Can (Again), and RWAs Inch Deeper Into DeFi

September 12, 2025

In this week's newsletter we explore the latest ETF flows, the SEC's (lack of) decision on Ethereum staking for ETFs and recent RWA developments

In this week's newsletter we explore the latest ETF flows, the SEC's (lack of) decision on Ethereum staking for ETFs and recent RWA developments

David Arnal

David Arnal

TL;DR

  • Spot ETF bid returns: U.S. spot Bitcoin ETFs took in roughly $757M in a day as BTC ripped through $114k, while ETH funds also saw net inflows.

  • Regulators stall staking & new assets: The SEC delayed decisions on enabling staking in ETH ETFs and on new SOL/XRP spot funds, stretching the uncertainty trade.

  • Macro sets the stage: U.S. CPI printed ~2.9% YoY for August; markets still expect the Fed to cut on Sep 17, framing a supportive liquidity backdrop for risk.

  • RWAs to the front: Aave’s Horizon (institutional RWA borrowing) is live, targeting a tokenized asset market now around $26–28B.

  • Crypto goes public (again): The IPO window stays hot (Circle in June; Bullish in August), and Gemini just upsized pricing after heavy oversubscription.

Spot ETF Flows vs. BTC Price. Source: SoSoValue

Network Fees — The sum of total fees spent to use a particular blockchain. This tracks the willingness to spend and demand to use Bitcoin or Ethereum.

  • Bitcoin: ~$3.34M (–9.7% w/w; still near cycle-lows post-halving as mempools under-fill).

  • Ethereum L1: ~$6.03M (–49.4% w/w; base-layer spend cooled sharply; activity remains concentrated on L2s).

Exchange Netflows — The sum of total fees spent to use a particular blockchain. This tracks the willingness to spend and demand to use Bitcoin or Ethereum.

  • BTC: Outflows ≈ –$1.21B over the past week (continued drawdown in exchange balances).

  • ETH: Outflows ≈ –$656M (ETF seeding, staking, and DeFi deployments keep draining inventories).

Market Pulse — Flows, Price, and Positioning

The bid is back. Spot Bitcoin ETFs logged about $757M in net inflows mid-week, the strongest in ~8 weeks, as BTC briefly pushed past $114k before settling near the figure. ETH funds saw smaller but positive flows, which, together with BTC strength, flipped the narrative after a lukewarm August. The flow-through is clear: ETF pipes remain the cleanest institutional conduit into crypto beta.

Consumer Price Index. Source: FRED

Macro didn’t ruin the party. August CPI (~2.9% YoY; core ~3.1%) reinforced the “sticky but stable” view. Yet despite inflation running above target, markets and several Fed watchers still anticipate a 25 bps cut on Sep 17, citing a softer labor backdrop and Powell’s Jackson Hole tone. That combination — disinflation versus jobs risk — keeps a “cuts with caution” base case that tends to favor duration-sensitive assets (growth equities, crypto).

FOMC cut probabilities. Source: CME Group

Policy & Regulation — The SEC’s “not yet” doctrine

In a mid-week filing batch, the SEC punted on staking features for spot ETH ETFs and also extended review on SOL/XRP ETF proposals. For ETH, staking inside an ETF raises custody, operational, and “investment company” wrinkles; expect more questions than answers this quarter. For SOL/XRP, politics and precedent loom larger than fundamentals. Delay ≠ denial, but time is its own headwind as competitors rack up assets.

Meanwhile, the GENIUS Act — the U.S.’s first federal stablecoin law — continues to rewire the landscape. Banks and OCC-licensed nonbanks now have a clearer path to issue and distribute payment stablecoins, unlocking bank-grade rails for tokenized money. Expect product launches to accelerate into Q4 as compliance playbooks harden.

DeFi & RWAs — From pilot to pipeline

Aave Labs’ Horizon is now live, giving qualified institutions the ability to borrow stablecoins against tokenized Treasuries and other RWAs — while anyone can supply liquidity. Two things matter: (1) the on-chain cost of capital versus T-bill yields and (2) credible KYC/KYB flows into the front-end. With tokenized assets hovering around $26–28B, plugging that collateral into blue-chip DeFi lending is the next logical bridge from read-only tokenization to read-write finance.

Tokenized U.S. Treasuries outstanding. Source: RWA
AAVE Horizon — Total Supplied by Asset. Source: AAVE
Aave Horizon — Total Borrowed by Asset. Source: AAVE

What to watch: counterparty frameworks, oracle design for RWA marks, and how quickly treasurers move beyond passive “wrapped paper” into active, term-matched borrowing on-chain.

Public Markets — The crypto equity flywheel

The crypto IPO window remains wide open. Circle (CRCL) priced and listed in June, establishing public-market comparables for stablecoin infrastructure. Bullish (BLSH) followed with a blowout NYSE debut in mid-August. This week, Gemini raised its price range after the book was 20× oversubscribed and is slated to trade under GEMI. The message: equity capital is chasing crypto operating leverage again, not just coins.

Parallel to listings, venues keep productizing the crossover trade. Coinbase Derivatives will launch Mag7 + Crypto Equity Index Futures on Sep 22, a neat wrapper for the “tech + ETF crypto beta” trade in one contract. Expect this to become a popular macro hedge/overlay for funds that traffic both sides.

CeFi & Retail — More pipes, better UX

At its HOOD Summit 2025, Robinhood rolled out AI-powered screening tools, social features, and futures enhancements. Less about shiny toys than distribution: these upgrades widen the funnel for retail to interact with crypto exposures adjacent to stocks and options. In a rising-rates-to-cut cycle, the brokerages that compress the “discover → allocate” loop will win share.

On the reserves front, Tether’s Q2 attestation (as of June 30) showed ~$162.6B in assets and reiterated large UST-bill holdings — a reminder that stablecoin treasuries are now macro-relevant buyers of U.S. duration. That bid matters if the Fed eases and duration rallies.

What To Watch Next

  1. Sep 17 FOMC: Path and language around cuts; risk-on impulse if Powell leans employment-first.

  2. ETF flow persistence: Can BTC sustain daily net inflows >$500M for multiple sessions?

  3. ETH staking ETF filings: Any SEC questions that hint at a workable path (custody, slashing, income characterization).

  4. RWA deal tape: First visible institutional borrows on Horizon and comparable platforms.

  5. Public exchange cohort: Gemini’s debut and read-across to CRCL/BLSH multiples.

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