1. O

  2. Obamanomics

  3. Objective Probability

  4. Obligation

  5. Obligation Bond

  6. Obligor

  7. Obsolescence Risk

  8. Obsolete Inventory

  9. Occupancy Fraud

  10. Occupancy Rate

  11. Occupational Labor Mobility

  12. Ocean Bill Of Lading

  13. October Effect

  14. Odd Date

  15. Odd Lot

  16. Odd Lot Theory

  17. Odd Lotter

  18. Odd-Days Interest

  19. Odious Debt

  20. OEX

  21. Off Balance Sheet - OBS

  22. Off Board

  23. Off-Balance-Sheet Financing

  24. Off-Floor Order

  25. Off-Premise Banking

  26. Off-The-Run Treasuries

  27. Off-The-Run Treasury Yield Curve

  28. Offensive Competitive Strategy

  29. Offer

  30. Offer In Compromise

  31. Offering

  32. Offering Circular

  33. Offering Memorandum

  34. Offering Price

  35. Office Audit

  36. Office Of Federal Housing Enterprise Oversight - OFHEO

  37. Office Of Foreign Asset Control - OFAC

  38. Office Of The Comptroller Of The Currency - OCC

  39. Office Of The Superintendent Of Financial Institutions - OSFI

  40. Office Of Thrift Supervision - OTS

  41. Official Committee Of Equity Security Holders

  42. Official Settlement Account

  43. Official Staff Commentary

  44. Official Strike

  45. Offline Debit Card

  46. Offset

  47. Offset Mortgage

  48. Offsetting Transaction

  49. Offshore

  50. Offshore Banking Unit - OBU

  51. Offshore Mutual Fund

  52. Offshore Portfolio Investment Strategy - OPIS

  53. Offtake Agreement

  54. OHLC Chart

  55. Oil ETF

  56. Oil Field

  57. Oil Initially In Place - OIIP

  58. Oil Pollution Act Of 1990

  59. Oil Price to Natural Gas Ratio

  60. Oil Refinery

  61. Oil Reserves

  62. Oil Sands

  63. Oil Services Industry ETF

  64. Oil Stabilization Fund (Iran)

  65. Okun Gap

  66. Okun's Law

  67. Old Age, Survivors And Disability Insurance Program - OASDI

  68. Old Economy

  69. Old Lady

  70. Old-Age And Survivors Insurance Trust Fund

  71. Oligopoly

  72. Oligopsony

  73. Oliver E. Williamson

  74. Oman Investment Fund

  75. Oman Rial - OMR

  76. Ombudsman

  77. Omega

  78. Omnibus Account

  79. OMR (Oman Rial)

  80. On Account

  81. On Stream

  82. On Track

  83. On-Balance Volume (OBV)

  84. On-The-Run Treasuries

  85. On-The-Run Treasury Yield Curve

  86. On-Us Item

  87. One Man Picture

  88. One Night Stand Investment

  89. One Percent Rule

  90. One To Many

  91. One-Bank Holding Company

  92. One-Cancel-All Order

  93. One-Cancels-the-Other Order - OCO

  94. One-Child Policy

  95. One-Day Certificate

  96. One-Sided Market

  97. One-Stop Shop

  98. One-Tailed Test

  99. One-Third Rule

  100. One-Time Charge

Hot Definitions
  1. National Best Bid and Offer - NBBO

    A term applying to the SEC requirement that brokers must guarantee customers the best available ask price when they buy securities and the best available bid price when they sell securities.
  2. Maintenance Margin

    The minimum amount of equity that must be maintained in a margin account. In the context of the NYSE and FINRA, after an investor has bought securities on margin, the minimum required level of margin is 25% of the total market value of the securities in the margin account.
  3. Leased Bank Guarantee

    A bank guarantee that is leased to a third party for a specific fee. The issuing bank will conduct due diligence on the creditworthiness of the customer looking to secure a bank guarantee, then lease a guarantee to that customer for a set amount of money and over a set period of time, typically less than two years.
  4. Degree Of Financial Leverage - DFL

    A ratio that measures the sensitivity of a company’s earnings per share (EPS) to fluctuations in its operating income, as a result of changes in its capital structure. Degree of Financial Leverage (DFL) measures the percentage change in EPS for a unit change in earnings before interest and taxes (EBIT).
  5. Jeff Bezos

    Self-made billionaire Jeff Bezos is famous for founding online retail giant Amazon.com.
  6. Re-fracking

    Re-fracking is the practice of returning to older wells that had been fracked in the recent past to capitalize on newer, more effective extraction technology. Re-fracking can be effective on especially tight oil deposits – where the shale products low yields – to extend their productivity.
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