# Lingo
**D2C** direct to consumer, a company that produces a product & distributes it to customers within its own channels.
**Portfolio aggregation** Pulling investment information into one central location. For example, pulling all SPL token information for a portfolio onto one UI. UI dashboard for your data.\
\
*Example Portfolio aggregators:*[\
https://sonar.watch/](https://sonar.watch/)
**Price oracle** Any tool used to view price information about a given asset. A tool to query, retrieve, verify and provide a blockchain with off-chain data
*Example Price Oracle:*\
**Affiliate program** An agreement in which a business pays another business or influencer ('the affiliate') a commission for sending traffic and/or sales their way. Eg an influencer selling products through an ‘affiliate link’ & receiving commission based on traffic through this link.
**Cranking Function** When a user (eg staker in Gemfarm) finishes their period in a smart contract (eg staking term) the user must be cranked onto the next contract (ie start new staking term). This must be done manually by either the user or the authority over the protocol itself.
**Rebalancing between products** An investment strategy where the ratios between assets are balanced to a % of portfolio value $. For example 20% Solana 80% USDC - program automatically trades between the two assets to ensure balance is kept.
**Chain agnostic** Protocols that work on multiple chains (not related to any single chain)
**TVL** Total value of cryptocurrency locked in a smart contract
\
**Current Active Users** Total number of active users using a crypto chain. Arguably more important then TVL
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**Capital efficiency** Capital efficiency is the ratio that compares the spending of a company on their growing revenue and how much they are receiving in return in the way of profits. Ie money spent by a company VS income
**Over collateralization** When debt is higher than the assets value.
**KYC** Know Your Customer. Eg phone verification, facial recognition ect
**Permission less pools** Allows anyone to create a liquidity pool. An example of permission less is **Raydium** where their pools are ‘self service’ whilst Orca is permission based requiring approval to create a new pool.
**Multi chain** Similar to chain agnostic whereby a protocol/program can run across multiple chains
**SDK** Software development kit that can be used to develop applications
**Custodial Vs Non-custodial** custodial the asset is held by a third party and in non-custodial, users are themselves responsible and in full control of their assets
**Cross margin** A method that utilizes the full amount of funds in the Available Balance of the relevant cryptocurrency to avoid liquidations on the positions with the same settlement cryptocurrency.
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