Skip to article
Degrees of SatoshiFollow the connections.
SearchTrace an address
Degrees of Satoshi/ Encyclopedia

Encyclopedia DeFi · Entry 172

Vault share price: converting between shares and assets

AI-assisted research · separate automated verificationCorrections

Theme
DeFi
Sources
2 cited records
Reading time
About 3 minutes
Automated verification
Substantive update
In this article

At a glance

Key facts

Key facts for Vault share price: converting between shares and assets
FactDetailSource
UnitsERC-4626 distinguishes underlying assets from vault shares.[1]
ConversionconvertToAssets and convertToShares exclude fees and round down under the standard.[1]
LimitsPreview methods do not account for deposit or withdrawal limits; max methods address limits separately.[1]
01

Measure value in the underlying asset first

In a simplified proportional vault with 120 assets and 100 shares, each share corresponds to 1.2 assets. A holder’s ten shares represent 12 assets before any fees or rounding.

This ratio is an illustration, not a universal implementation formula. Virtual balances, accounting choices and the standard’s permitted conversion estimates can change the exact contract calculation.

02

Use the function that matches the intended action

Redeeming a fixed number of shares and withdrawing a fixed number of assets are different requests. The relevant preview includes the operation’s fee treatment and specified rounding direction.

A preview describes conditions at the time of the call. State can change before execution, and the caller must separately check maximum permitted amounts and any enforced execution bounds.

03

A higher conversion does not prove earned profit

Donations can alter assets per share without representing strategy income. Fees, losses and valuation of the underlying asset also affect the holder’s economic result.

Do not use a manipulable preview as an unquestioned oracle. ERC-4626 explicitly discusses the distinction between display estimates, close previews and conversion implementations designed for more robust price use.

Direct answers

Questions people ask

If the share price rises, must my dollar value rise too?

No. The conversion is measured in underlying asset units. That asset’s dollar price can fall, and fees or other constraints can affect what the holder ultimately receives.

Inspect the evidence

The answer and key facts have stable claim links. These records retain the scope and qualification when reused.

A vault share price expresses how many underlying asset units a share represents under the vault’s accounting. The share count can remain fixed while that conversion changes. For ERC-4626 vaults, conversion estimates, operation-specific previews and maximum-action limits answer different questions; none alone guarantees a future withdrawal amount or a positive investment return.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:19:48.887Z.

Link to this claim
Units: ERC-4626 distinguishes underlying assets from vault shares.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:19:48.887Z.

Link to this claim
Conversion: convertToAssets and convertToShares exclude fees and round down under the standard.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:19:48.887Z.

Link to this claim
Limits: Preview methods do not account for deposit or withdrawal limits; max methods address limits separately.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T18:19:48.887Z.

Link to this claim
Revision history
  1. — First publication after primary-source research and independent automated verification.

Source register

Sources and references

Retrieval dates and locators are recorded individually.
  1. Tokenized VaultsEthereum Improvement Proposals

    Assets, shares, deposits, withdrawals, limits and preview rounding.

    Locator: Specification; Security Considerations · Version / scope: EIP/ERC-4626; retrieved document hash recorded · Retrieved: 2026-10-02T17:03:42.366ZOpen source
  2. ERC-4626OpenZeppelin

    Vault share conversion, rounding, donations and inflation-attack defenses.

    Locator: Security concern: Inflation attack; Defending with a virtual offset · Version / scope: OpenZeppelin Contracts 5.x · Retrieved: 2026-10-02T17:03:43.088ZOpen source
How this article was made

Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.

Editorial method and corrections

Degrees of Satoshi editorial project. “Vault share price: converting between shares and assets.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/vault-share-price/