Maastricht Treaty * Macaulay Duration * Macro Hedge * Macroeconomic (Macro) Swap or Option * Maginot Spread * Maintenance Margin * Making a Market * Mambo Combo * Managed Derivatives Fund (MDF) * Managed Futures Accounts * Management's Discussion and Analysis (MD&A) * Managers of Managers (MOM) * Mandarin Collar * Mandate * Mandatory Conversion Premium Dividend Preferred St * Mandatory Convertible * Manipulation of a Market * Marché * Margin * Margin Call * Margin of Solvency * Marginal Utility * Margrabe Option * Market * Market Adjusted Debt (MAD) * Market Auction Preferred Stock (MAPS) * Market Efficiency * Market Gapping * Market Impact * Market Index Deposits (MIDs) * Market Index Target-Term Security (MITTS) * Market Indexed NotE (MINE) * Market Line * Market Neutral Investment Strategy * Market on Close Order (MOC) * Market Order * Market Portfolio * Market Risk * Market Timing * Marketability Risk * Market-If-Touched Order * Market-Linked CD * Market-Maker * Markov Process * Mark-to-Market * Mark-to-Market Swap * Mark-to-Model * Married Put * Martingale * Maruyu * Master Swap Agreement * Matched Book * Matched Hedge * Matched Swap * Materiality * Mathematical Expectation * Matrix Price * Maturity * Maturity Gap * Maturity Mismatch Risk * Maverick Risk * Maximum Likelihood Estimation * Maximum Maturity Bonds * Maximum Potential Replacement Cost * Maximum Rate Note * May Day * Mean * Mean Reversion * Mean Variance (MV) Analysis * Mean-Tracking Error Utility Function * Mean-Variance-Tracking Error Utility Function * Mean-Variance-Utility Function * Median * Medium-Term Notes (MTN) * Member Firm * Mental Accounting * Mezzanine Financing * Micro Hedge * Mid-Cap Investment Manager * Middle Market (or Mid- Market) Price or Quotation * Middle Office * Migration Analysis * Mil or Mill * Milking * Min Max * Min Max Option * Mini-Max Floater * Mini-Max Strategy * Minimum Acceptable Return (MAR) * Minimum Price Fluctuation * Minimum Variance Hedge Ratio * Mini-Premium Option * Ministry of Finance (MOF) * Mirror Swap * Mismatched Payment Swap * Mode * Modeling Risk * Modern Portfolio Theory (MPT) * Modified American Option * Modified And Combinable Remic (MACR) * Modified Duration * Modified Following * Modigliani-Miller Hypothesis * Momentum Investor * Monetary Model * Money Back Certificates * Money Back Options or Warrants * Money Market Basis * Money Market Preferred Stock (MMPS) * Money Spread * Moneyness * Monte Carlo Method * Monthly Income Preferred Shares (MIPS) * Monthly OverNight Average (MONA) Swap * Moral Hazard * Moral Obligation Bond * Moral Risk * Mortgage * Mortgage Bond * Mortgage Over Treasury Option (MOTO) * Mortgage Participation Certificate * Mortgage Prepayment Cap * Mortgage Replication Swap * Mortgage-Backed Securities * Moving Average * Mule * Multi-Asset Option * Multi-Currency Swap Agreement * Multi-Factor Model * Multi-Factor Option * Multi-Index Option * Multilateral Netting * Multinet * Multi-Period Option * Multi-period Strike Reset Option (MSRO) * Multiple Listing * Multiply-Traded Option * Multi-Step-Up Callable Bond or Note * Municipal Convertible * Municipal Derivative * Municipal Embedded Derivative Security (M- Beddo) * Municipal Option Put Security (MOPS) * Municipal Over Bond (MOB) Spread * Mutual Fund * Mutual Offset System