BA-13 · LESSON 03

ETFs and custodial products

KEY DEFINITIONS

Terms used in this lesson

NAV: Net asset value: the fund's assets minus liabilities, commonly expressed per outstanding share.
AP: Authorized participant: a financial institution permitted by a fund to create or redeem large share baskets under the product rules.
UTXO: Unspent transaction output: one discrete chunk of bitcoin that can be used as a transaction input.
Spread: The gap between executable buy and sell prices in a market.
ETF: Exchange-traded fund: a regulated investment vehicle whose shares trade on a securities exchange.

Exchange-traded products improve access but introduce custody, authorized participant, tracking, jurisdiction, and redemption structures.

55 min Difficulty 3/5 Not started

VISUAL MODEL

See the whole mechanism before going step by step

Use the diagrams to orient yourself. Then the guided explanation below teaches every part in depth.

4 explanatory views

CONCEPT-SPECIFIC MAP · market ledgerEvery financial return is a ledger of positions, cash flows, and riskSelect any state to inspect its exact role.

RELATIONSHIP MAPCompeting paths and resolution

01
POSITIONAsset and liability
Start by naming the exact long, short, debt, collateral, or reserve position.
02
PRICE PATHEntry, exit, mark
Price changes affect each leg and can trigger margin or liquidation boundaries.
03
CASH FLOWSETFs and custodial products
The ETFs and custodial products model includes fees, funding, spreads, slippage, and timing.
04
RECONCILEassets = claims + equity
Every successor state must conserve the ledger under the chosen units.
05
STRESSChanged assumption
A useful model exposes what fails when liquidity, price, cost, or timing is adverse.

Rule shown: Claims about yield or profit are calculations from versioned assumptions, never protocol facts.

STAGE 1 OF 5POSITION: Asset and liability

Start by naming the exact long, short, debt, collateral, or reserve position.

Governing relationship: Claims about yield or profit are calculations from versioned assumptions, never protocol facts. Complete path: 1. POSITION, Asset and liability. Start by naming the exact long, short, debt, collateral, or reserve position. 2. PRICE PATH, Entry, exit, mark. Price changes affect each leg and can trigger margin or liquidation boundaries. 3. CASH FLOWS, ETFs and custodial products. The ETFs and custodial products model includes fees, funding, spreads, slippage, and timing. 4. RECONCILE, assets = claims + equity. Every successor state must conserve the ledger under the chosen units. 5. STRESS, Changed assumption. A useful model exposes what fails when liquidity, price, cost, or timing is adverse.

1. State transitionWhat exists, what changes, and what results

BEFORE

Fund holds net assets worth $1,000,000,000 and has 20,000,000 shares. A share trades at $50.50.

MECHANISM

An investor buys shares from a broker or market counterparty and owns a security claim, not direct control of the custodian's Bitcoin UTXOs.

AFTER

Share arbitrage links prices, but the mechanism and access depend on the product's current creation and redemption rules.

Text equivalent: Starting from Fund holds net assets worth $1,000,000,000 and has 20,000,000 shares. A share trades at $50.50. The mechanism begins when An investor buys shares from a broker or market counterparty and owns a security claim, not direct control of the custodian's Bitcoin UTXOs. The resulting lesson is Share arbitrage links prices, but the mechanism and access depend on the product's current creation and redemption rules.

2. Mechanism pathSelect a stage to inspect its job

STAGE 1 OF 5

Acquire exposure through shares

An investor buys shares from a broker or market counterparty and owns a security claim, not direct control of the custodian's Bitcoin UTXOs.

Complete path: 1. Acquire exposure through shares: An investor buys shares from a broker or market counterparty and owns a security claim, not direct control of the custodian's Bitcoin UTXOs. 2. Hold and value underlying assets: The trust or fund custodian safeguards bitcoin. The administrator applies a specified price benchmark, liabilities, and fees to calculate NAV. 3. Create or redeem baskets: Eligible APs deliver or receive cash or bitcoin according to current product mechanics in exchange for blocks of shares. The lab deliberately uses a bounded cash-at-NAV basket; it does not claim every product settles that way. 4. Arbitrage price gaps: When share price departs from NAV enough to cover costs, AP activity can expand or contract supply and pressure the gap toward alignment. 5. Account for product risks: Custody, benchmark, fees, trading hours, AP concentration, legal structure, tax, redemption restrictions, and jurisdiction differ from self-custody.

3. Rule and failure boundaryWhat accepts the result and where it can stop

ACCEPTED PATH

The basket transition requires AP permission, available custody, positive profit after costs, exact fund-asset and share changes, and unchanged NAV per share in the bounded cash-at-NAV model.

CHANGED CONDITION

Missing permission or custody blocks the transition, costs can erase the spread, and a share or asset mismatch rejects the claimed successor ledger.

Important distinction: Owning a spot Bitcoin ETF share gives the investor an on-chain claim they can redeem directly for bitcoin. Retail shareholders usually hold fund shares and trade them through brokers. Direct redemption rights and form belong to the product's legal and operational rules, often through APs.

Text equivalent: The accepted path is enforced by The basket transition requires AP permission, available custody, positive profit after costs, exact fund-asset and share changes, and unchanged NAV per share in the bounded cash-at-NAV model. If the required condition changes, Missing permission or custody blocks the transition, costs can erase the spread, and a share or asset mismatch rejects the claimed successor ledger.

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Learn the idea

A spot Bitcoin exchange-traded product holds or references bitcoin while investors trade shares through securities markets. A custodian controls underlying keys. Authorized participants, or APs, create and redeem large share baskets under the product rules. Net asset value, or NAV, measures per-share underlying value, while market price can trade at a premium or discount.

GUIDED EXPLANATION1/5 ideas inspected

Acquire exposure through shares

An investor buys shares from a broker or market counterparty and owns a security claim, not direct control of the custodian's Bitcoin UTXOs.

The worked example follows the explanation

Inspect every idea above to open it.

Important distinction“Owning a spot Bitcoin ETF share gives the investor an on-chain claim they can redeem directly for bitcoin.”

Retail shareholders usually hold fund shares and trade them through brokers. Direct redemption rights and form belong to the product's legal and operational rules, often through APs.

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