Spot BTC ETF flow data shows daily net creations and redemptions. The headline numbers ($X created or $Y redeemed) get reported. The composition of which AP firms drove the activity — who's actually putting bid on the market — is publicly available and reveals structural flow patterns most desks don't track.
AP firm landscape across major ETFs
Authorized Participant firms for the major spot BTC ETFs as of Q2 2026:
IBIT (BlackRock):
- Jane Street Capital
- Macquarie Capital
- Virtu Americas
- ABN AMRO
- JP Morgan Securities (added Q1 2025)
- Goldman Sachs (added Q3 2024)
FBTC (Fidelity):
- Jane Street Capital
- Virtu Americas
- Citadel Securities
- JP Morgan Securities
ARKB (ARK 21Shares):
- Jane Street Capital
- Virtu Americas
- Macquarie Capital
BITB (Bitwise):
- Jane Street Capital
- Virtu Americas
- Cantor Fitzgerald
Jane Street is the AP for essentially every major spot BTC ETF — they capture an estimated 60%+ of total AP activity across the complex.
What AP firms actually do
Creation flow:
- Customer demand drives ETF share inflows.
- AP firm coordinates creation order with issuer (typically requires submission by 2pm ET).
- AP firm acquires BTC from spot market or OTC venues, transfers to issuer's custodian (Coinbase Custody for IBIT, Fidelity Digital Assets for FBTC).
- Issuer mints new ETF shares to AP firm.
- AP firm distributes shares to market makers and brokers.
Redemption flow is the reverse: AP firm returns shares, issuer releases BTC, AP firm sells BTC and returns cash.
The window between customer demand and BTC acquisition can be hours to days, during which AP firms manage inventory exposure. The hedging activity during this window is part of the daily price impact.
How AP firms source BTC
Three primary channels:
Coinbase Prime / institutional desk. The dominant venue for IBIT inflow given the existing custody relationship. AP firms acquire BTC at Coinbase, which then transfers internally to IBIT custody. The internal transfer is invisible to spot market but the acquisition shows up as Coinbase volume.
OTC desks. Galaxy Digital, Cumberland, Genesis Trading (post-bankruptcy reorganization). OTC desks aggregate inventory and provide block liquidity to AP firms. OTC sourcing is invisible to spot exchanges and contributes to the persistent Coinbase premium dynamic.
Direct spot exchange. Bitfinex, Kraken, and other major venues. Used for smaller creation orders or when OTC desks are unable to source efficiently.
The split has been roughly:
- Coinbase Prime: 50%
- OTC desks: 35%
- Other spot exchanges: 15%
Why this matters for spot price
Two structural implications:
The "Coinbase premium" is partly an AP-firm artifact. When IBIT has heavy creation activity, AP firms lift offers on Coinbase to source spot BTC. This generates the persistent Coinbase-vs-other-venues premium. The premium is a flow signal, not just a sentiment signal.
Daily ETF flow data lags actual market impact. When you see "IBIT inflow $400M" on Tuesday, the actual BTC acquisition by AP firms occurred 1-2 days earlier. The market impact already happened. For traders, the data confirms what spot has already done rather than predicting what spot will do.
The leading indicator is real-time observation of AP firm activity: large blocks moving through Coinbase Prime, sustained Coinbase premium, and OTC desk volume signals.
Jane Street's concentration
Jane Street's dominance as AP raises a structural question. Some concerns worth noting:
Concentration risk: If Jane Street experienced operational issues, AP activity across multiple ETFs would be impacted simultaneously. Backup AP firms exist but might not absorb full volume.
Pricing power: Jane Street's dominant market-making position gives it superior information about flow direction. This is not necessarily a bad thing — sophisticated market makers tighten spreads — but it does mean a single firm has unusually clean visibility into institutional bid.
Single-firm risk during stress: During severe market stress, market makers often widen spreads or pull back. Jane Street has historically performed well in stress; the concentration means stress impact would be concentrated.
These are structural observations, not predictions. The current setup works smoothly under normal conditions.
Recent flow patterns by AP firm
Q2 2026 estimated AP firm attribution:
For IBIT inflows:
- Jane Street: ~62% of creation volume
- Virtu Americas: ~18%
- Goldman Sachs: ~9%
- JP Morgan: ~6%
- Others: ~5%
For FBTC inflows:
- Jane Street: ~55%
- Citadel: ~22%
- Virtu Americas: ~15%
- JP Morgan: ~8%
The presence of Goldman and JP Morgan in IBIT's AP set is notable. These are traditional prime brokerages whose AP participation indicates institutional clients are routing demand through major broker-dealer channels. This is the "institutional adoption" thesis materializing in flow patterns.
What it means for institutional positioning reads
For desks tracking flow signals:
Watch AP firm composition trends. When a new major firm joins as AP, it often signals expanding institutional client demand at that firm. Goldman adding to IBIT in Q3 2024 preceded measurable IBIT flow acceleration.
Track Jane Street block flow as proxy. Jane Street's flow signals across major venues can serve as a leading indicator for ETF creation activity. Their hedging patterns reveal customer demand direction.
Coinbase Prime volume during US morning is a real-time AP activity signal. Heavy morning volume on Coinbase Prime is typically AP firms acquiring inventory for that day's creation orders.
What might change
Three potential structural shifts:
Crypto-native AP firms entering. Currently AP firms are all traditional market makers. If crypto-native firms (Cumberland, B2C2) became AP for major ETFs, the dynamics could shift toward crypto-native sourcing channels.
Tokenized AP relationships. Some ETF designs are exploring tokenized create/redeem mechanisms where the AP relationship is partially automated through smart contracts. This is exploratory but could compress the spot market impact window.
Cross-venue arbitrage AP activity. Some AP firms are increasingly running multi-asset arbitrage strategies. This blurs the line between ETF AP activity and broader market making.
Bottom line
Jane Street is the dominant AP across the spot BTC ETF complex. AP firms source primarily through Coinbase Prime, OTC desks, and major spot exchanges. The flow patterns are visible if you know where to look.
For positioning reads, watch AP firm composition trends, Coinbase Prime morning volume, and OTC desk activity signals. These provide cleaner real-time signals than the lagging daily flow reports. Understanding the plumbing matters when you're trying to read what institutional bid is actually doing.