DeFi

T+Settlement

Settlement date convention: T+1 means trade settles one business day later. US equities moved to T+1 in 2024. Blockchain is effectively T+0 — Solana transactions finalize in under 1 second with no counterparty exposure after confirmation.

IDt-plus-settlementAliasT+1AliasT+2AliasT+0

Plain meaning

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Settlement date convention: T+1 means trade settles one business day later. US equities moved to T+1 in 2024. Blockchain is effectively T+0 — Solana transactions finalize in under 1 second with no counterparty exposure after confirmation.

Mental model

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Think of it as a market mechanic used to price, route, or move capital through liquidity apps.

Technical context

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AMMs, routing, liquidity, lending, and trading infrastructure.

Why builders care

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T+Settlement (t-plus-settlement)
Category: DeFi
Definition: Settlement date convention: T+1 means trade settles one business day later. US equities moved to T+1 in 2024. Blockchain is effectively T+0 — Solana transactions finalize in under 1 second with no counterparty exposure after confirmation.
Aliases: T+1, T+2, T+0
Related: Atomic Settlement, Clearing and Settlement, Finality (Blockchain)
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Concept graph

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These branches show which concepts this term touches directly and what sits one layer beyond them.

Branch

Atomic Settlement

Simultaneous, all-or-nothing completion of both legs of a trade (asset + cash) in a single transaction. Eliminates settlement risk. A Solana transaction either fully executes all instructions or reverts completely, making partial settlement impossible by construction.

Branch

Clearing and Settlement

Two phases of completing a financial transaction. Clearing: reconciling orders and calculating net obligations. Settlement: actual exchange of securities and cash. Traditional markets: T+1/T+2. Blockchain enables atomic settlement — simultaneous instant exchange eliminating counterparty risk.

Branch

Finality (Blockchain)

The guarantee that a confirmed transaction is irreversible and cannot be altered. Probabilistic finality (Bitcoin) means reversal becomes exponentially unlikely over time. Deterministic finality (Solana finalized, Tendermint) provides absolute guarantees after a protocol-defined threshold. Finality time ranges from seconds (Solana) to ~60 minutes (Bitcoin, 6 confirmations).

Next concepts to explore

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These are the next concepts worth opening if you want this term to make more sense inside a real Solana workflow.

DeFi

Atomic Settlement

Simultaneous, all-or-nothing completion of both legs of a trade (asset + cash) in a single transaction. Eliminates settlement risk. A Solana transaction either fully executes all instructions or reverts completely, making partial settlement impossible by construction.

Blockchain General

Clearing and Settlement

Two phases of completing a financial transaction. Clearing: reconciling orders and calculating net obligations. Settlement: actual exchange of securities and cash. Traditional markets: T+1/T+2. Blockchain enables atomic settlement — simultaneous instant exchange eliminating counterparty risk.

Blockchain General

Finality (Blockchain)

The guarantee that a confirmed transaction is irreversible and cannot be altered. Probabilistic finality (Bitcoin) means reversal becomes exponentially unlikely over time. Deterministic finality (Solana finalized, Tendermint) provides absolute guarantees after a protocol-defined threshold. Finality time ranges from seconds (Solana) to ~60 minutes (Bitcoin, 6 confirmations).

DeFi

Tensor

A Solana NFT marketplace and trading protocol that launched the TNSR governance token in April 2024. Tensor provides advanced trading features including collection-level bidding, real-time price feeds, and lending against NFT collateral. It competes with Magic Eden as a primary NFT trading venue on Solana.

Commonly confused with

Terms nearby in vocabulary, acronym, or conceptual neighborhood.

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DeFiatomic-settlement

Atomic Settlement

Simultaneous, all-or-nothing completion of both legs of a trade (asset + cash) in a single transaction. Eliminates settlement risk. A Solana transaction either fully executes all instructions or reverts completely, making partial settlement impossible by construction.

Related terms

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Glossary entries become useful when they are connected. These links are the shortest path to adjacent ideas.

DeFiatomic-settlement

Atomic Settlement

Simultaneous, all-or-nothing completion of both legs of a trade (asset + cash) in a single transaction. Eliminates settlement risk. A Solana transaction either fully executes all instructions or reverts completely, making partial settlement impossible by construction.

Blockchain Generalclearing-settlement

Clearing and Settlement

Two phases of completing a financial transaction. Clearing: reconciling orders and calculating net obligations. Settlement: actual exchange of securities and cash. Traditional markets: T+1/T+2. Blockchain enables atomic settlement — simultaneous instant exchange eliminating counterparty risk.

Blockchain Generalfinality-general

Finality (Blockchain)

The guarantee that a confirmed transaction is irreversible and cannot be altered. Probabilistic finality (Bitcoin) means reversal becomes exponentially unlikely over time. Deterministic finality (Solana finalized, Tendermint) provides absolute guarantees after a protocol-defined threshold. Finality time ranges from seconds (Solana) to ~60 minutes (Bitcoin, 6 confirmations).

More in category

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DeFi

AMM (Automated Market Maker)

A protocol that enables token swaps using algorithmic pricing against pooled liquidity instead of matching individual buyers and sellers. AMMs use mathematical formulas (typically constant product x*y=k) to determine prices based on the ratio of tokens in a liquidity pool. On Solana, major AMMs include Raydium, Orca, and Meteora.

DeFi

CLMM (Concentrated Liquidity Market Maker)

An AMM design where liquidity providers concentrate their capital within specific price ranges instead of across the full 0-to-infinity range. CLMMs dramatically improve capital efficiency—LPs earn more fees per dollar deposited within their active range. If the price moves outside the range, the position becomes inactive. Orca Whirlpools and Raydium CLMM are leading implementations on Solana.

DeFi

Liquidity Pool

A smart-contract-held reserve of two or more tokens that enables trading via an AMM. Users deposit token pairs in specified ratios to become liquidity providers and earn trading fees. Pools are identified by their token pair and fee tier. Pool depth (total value locked) determines price impact for trades.

DeFi

LP Token

A token issued to liquidity providers representing their proportional share of a pool's reserves and accrued fees. LP tokens can be burned to withdraw the underlying assets. The value of LP tokens changes as the pool's token ratios shift and fees accumulate. LP tokens are often stakeable in yield farming programs for additional rewards.