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Digital assets and currencies
Understand assets, networks and trading mechanics with sources you can check.
Accumulator (structured product)
Accumulators (a.k.a. share forward accumulators) are financial structured products sold by an issuer (seller) to investors (the buyer) that require the buyers to buy shares of some underlying security at a predetermined strike price, settled periodically.
Payments & settlementAirPlus International
AirPlus International GmbH is a global corporate payment provider offering payment and data services for corporate travel management, procurement, and travel trade. Originally a subsidiary of Lufthansa Group, the company was acquired by SEB Kort in July 2024. The company provides business-to-business payment services around business travel payment, accounting, and analysis functions, in
Payments & settlementCharge card
A charge card is a type of credit card that enables the cardholder to make purchases which are paid for by the card issuer, to whom the cardholder becomes indebted. The cardholder is obliged to repay the debt to the card issuer in full by the due date, usually on a monthly basis, or be subject to late fees and restrictions on further card use. Charge cards are distinct from traditional c
FinanceConvertible arbitrage
Convertible arbitrage is a market-neutral investment strategy often employed by hedge funds. It involves the simultaneous purchase of convertible securities and the short sale of the same issuer's common stock.
StablecoinsDAI and the Sky Stablecoin System
DAI is a US dollar-pegged stablecoin associated with the Maker system, later linked to the development of the Sky ecosystem. This article introduces its positioning, mechanism, usage verification, and common misconceptions.
Fiat currenciesDynamic currency conversion
Dynamic currency conversion (DCC) or cardholder preferred currency (CPC) is a process whereby the amount of a credit card transaction is converted at the point of sale, ATM or internet to the currency of the card's country of issue. DCC is generally provided by third party operators in association with the merchant, and not by a card issuer. Card issuers permit DCC operators to offer DCC
FinanceEquity-linked note
An equity-linked note (ELN) is a debt instrument, usually a bond issued by a financial institution such as an investment bank or a subsidiary of a commercial bank. ELNs are liabilities of the issuer, but the final payout to the investor is based on an unrelated company's stock price, a stock index or a group of stocks or stock indices. The underlying stocks typically have large market ca
Trading basicsExchange-traded note
An exchange-traded note (ETN) is a senior, unsecured, unsubordinated debt security issued by an underwriting bank or by a special-purpose entity. Similar to other debt securities, ETNs may have a maturity date and are backed by the credit of the issuer, though some ETNs may have a portfolio of assets given as a collateral.
Trading basicsFixed income
Fixed income is a type of investment under which the borrower or issuer is obliged to make payments of a fixed amount on a fixed schedule. For example, the borrower may have to pay interest at a fixed rate once a year and repay the principal amount on maturity. Fixed-income securities (more commonly known as bonds) can be contrasted with equity securities (often referred to as stocks and
Payments & settlementFour Corners Model for Payment Security
The Four Corners model, often referred to as the Four Party Scheme is the most used card scheme in card payment systems worldwide. This model was introduced in the 1990s. It is a user-friendly card payment system based on an interbank clearing system and economic model established on multilateral interchange fees (MIF) paid between banks or other payment institutions.
FinanceISO 9564
ISO 9564 is an international standard for personal identification number (PIN) management and security in financial services.
FinanceLottery bond
Lottery bonds are a type of government bond in which some randomly selected bonds within the issue are redeemed at a higher value than the face value of the bond. Lottery bonds have been issued by public authorities in Belgium, Ireland, Pakistan, Sweden, New Zealand, the UK and other nations.
FinancePerpetual bond
A perpetual bond, also known colloquially as a perpetual or perp, is a bond with no maturity date, therefore allowing it to be treated as equity, not as debt. Issuers pay coupons on perpetual bonds forever, and they do not have to redeem the principal. Perpetual bond cash flows are, therefore, those of a perpetuity.
Securities & exchangesPower reverse dual-currency note
A dual-currency note (DC) pays coupons in the investor's domestic currency with the notional in the issuer's domestic currency. A reverse dual-currency note (RDC) is a note which pays a foreign interest rate in the investor's domestic currency. A power reverse dual-currency note (PRDC) is a structured product where an investor is seeking a better return and a borrower a lower rate by tak
FinancePrimary market
The primary market is the part of the capital market that deals with the issuance and sale of securities to purchasers directly by the issuer, with the issuer being paid the proceeds. A primary market means the market for new issues of securities, as distinguished from the secondary market, where previously issued securities are bought and sold. A market is primary if the proceeds of sal
Securities & exchangesPromissory note
A promissory note, sometimes referred to as a note payable, is a financial instrument in which one party (the maker or issuer) promises in writing to pay a determinate sum of money to another (the payee), subject to any terms and conditions specified within the document.
Securities & exchangesReverse convertible securities
A reverse convertible security is a type of convertible security where a bond or short-term note can be converted to cash, debt or equity at a set date by the issuer based on an underlying stock. In effect it is a type of option on the maturity date where the bond can be converted to shares or cash. For the investor they get the advantage of a steady stream of income due to the payment o
FinanceSecondary market
The secondary market, also called the aftermarket, is the financial market in which previously issued financial instruments such as shares, bonds, options, and futures are bought and sold. The initial sale of the security by the issuer to a purchaser, who pays proceeds to the issuer, is the primary market. All sales after the initial sale of the security are sales in the secondary market
StablecoinsUSD1: Brand, Token, and Reserve Information
USD1 is a US dollar stablecoin associated with the World Liberty Financial brand. This article introduces its positioning, mechanism, verification checklist, and common misconceptions.
StablecoinsUSDC: Native Issuance and Bridged Versions
USDC is a US dollar-backed stablecoin issued by Circle. This article introduces its positioning, mechanism, usage checklist, and common misconceptions.
StablecoinsUSDe: Ethena Synthetic Dollar
USDe is the synthetic dollar asset of the Ethena protocol. This article covers its positioning, mechanism, usage checklist, and common misconceptions.
StablecoinsUSDS: Sky Protocol Stablecoin
USDS is the stablecoin of the Sky protocol and is closely related to the evolution of DAI. This article covers its positioning, mechanism, usage checklist, and common misconceptions.
StablecoinsUSDT: Tether and Network Selection
USDT is a US dollar-denominated stablecoin issued by Tether, designed to maintain a close value relationship with the US dollar. This article introduces its positioning, mechanism, verification checklist, and common misconceptions.
Trading basicsYield curve
A yield curve shows the relationship between yields and time to maturity for a set of comparable debt securities. In practice the term usually refers to curves built from a single issuer or market segment so that credit quality and other features are as similar as possible, for example the U.S. Treasury curve for government bonds.