Arbitrage
Arbitrage seeks to exploit pricing differences between related instruments, markets, or cash flows after costs and execution risks.
Core arbitrage terms covering arbitrage, arbitrageurs, negative arbitrage, and arbitrage pricing theory.
Core arbitrage terms explain how traders, issuers, and analysts compare related prices, funding costs, risk factors, and execution constraints. The common theme is not certain profit; it is whether a pricing relationship survives transaction costs, timing, liquidity, financing, tax rules, and model error.
Start with Arbitrage for the basic idea and Arbitrageur for the market participant. Use Negative Arbitrage when funding cost exceeds investment return, especially in municipal bond proceeds and escrow analysis. Use Arbitrage Pricing Theory (APT) when the question is multi-factor expected return rather than a specific trade.
| Core term | Main use | Evidence to review |
|---|---|---|
| Arbitrage | Price discrepancy across related instruments or venues. | Executable quotes, size, timing, transaction costs, funding, and settlement. |
| Arbitrageur | Trader or firm attempting to exploit relative-value gaps. | Strategy mandate, risk limits, leverage, hedges, borrow, and execution record. |
| Negative arbitrage | Investment return is below borrowing or refunding cost. | Bond yield, escrow yield, spending schedule, NPV savings, and tax rules. |
| APT | Expected return is explained by exposure to multiple systematic factors. | Factor definitions, beta estimates, residual risk, data window, and model stability. |
For specific strategy types, continue to Cash-Carry, Triangular, and Bond Arbitrage, Deal, Convertible, and Risk Arbitrage, or Market-Neutral and Statistical Arbitrage.
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Arbitrage seeks to exploit pricing differences between related instruments, markets, or cash flows after costs and execution risks.
Arbitrage Pricing Theory is a multi-factor asset-pricing model that links expected return to systematic risk exposures.
An arbitrageur is a trader or firm that tries to profit from relative pricing gaps while managing execution, funding, and convergence risk.
Negative arbitrage occurs when invested proceeds earn less than the borrowing or refunding cost, reducing financing efficiency.