Abbreviations and acronyms

From Bogleheads

Below are brief descriptions of some abbreviations and acronyms, to help new investors. For a glossary of words relevant to investing, see: Glossary.

A-Z

 A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z 

A

B

C

D

E

F

G

H

  • HCOL - High Cost of Living
  • HIFO - Highest In, First Out. Highest cost of purchase is the first to be used or taken out of stock.
  • HmL - High minus Low (High B/P return - Low B/P return) Value Premium. See: Fama and French three-factor model.
  • HSA - Health Savings Account

I

  • IANAL - "I am not a lawyer". A warning that the reader should not take an opinion as professional legal advice. See: IANAL.
  • IANYL - "I am not your lawyer". Similar to IANAL, but from a lawyer who does not represent that person. Do not rely upon this advice even though this person may be an attorney.[1]
  • IB - Interactive Brokers
  • ILB - International Large Blend. A stock classification. See: Stock style boxes (applies to all stocks, not just international).
  • ILG - International Large Growth. A stock classification. See: Stock style boxes (applies to all stocks, not just international).
  • ILV - International Large Value. A stock classification. See: Stock style boxes (applies to all stocks, not just international).
  • IPO - Initial Public Offering. The process of offering shares of a private corporation to the public in a new stock issuance.
  • IP PIN - Identity Protection PIN. A 6-digit number assigned to eligible taxpayers to help prevent the misuse of their Social Security number (SSN) on fraudulent federal income tax returns.
  • IPS - Investment Policy Statement. An Investment Policy Statement helps investors stay on track with their long-term goals.
  • IRA - Individual Retirement Arrangement. A personal savings plan which allows you to set aside money for retirement.
  • IRMAA - Income-Related Monthly Adjustment Amount. An additional premium amount for Medicare Part B and Medicare prescription drug coverage.
  • iREIT - International Real Estate Investment Trust
  • IRS - Internal Revenue Service
  • ISB - International Small Blend. A stock classification. See: Stock style boxes (applies to all stocks, not just international).
  • ISG - International Small Growth. A stock classification. See: Stock style boxes (applies to all stocks, not just international).
  • ISIN - International Securities Identification Number. A unique international identifier for a security.
  • ISV - International Small Value. A stock classification. See: Stock style boxes (applies to all stocks, not just international).

J

  • JPY - Japanese Yen

K

L

M

N

O

P

  • PAS - Vanguard's Personal Advisory Service
  • P/B - Price Book Ratio. Also known as the "price-equity ratio." See: Price to Book.
  • P/E - Price Earnings Ratio. A ratio of a company's current share price compared to its per-share earnings. See: P/E.
  • PE10 - Price / Earnings ratio, averaged over the past 10 years and adjusted for inflation. Also known as CAPE. See: Shiller PE10.
  • PFIC - Passive Foreign Investment Company. Investment vehicles registered outside the US which are subject to US taxation.
  • PIA - Primary Insurance Amount. The base Social Security benefit before any adjustments such as retiring before or after Full Retirement Age (FRA). See: Social Security.
  • POA - Power of Attorney. A legal document giving one person (the agent or attorney-in-fact) the power to act for another person (the principal). See: List of estate planning terms (link to definition).
  • PPP - Purchasing Power Parity. A theory that measures prices at different locations using a common basket of goods. Can also mean the US Paycheck Protection Program.
  • PRIIPs - Packaged Retail Investment and Insurance-Based Products. EU regulation aimed at improving European investor protections. Related to MiFID.

Q

  • QCD - Qualified Charitable Distribution. A qualified charitable distribution (QCD) is the withdrawal of funds from an IRA with the intention of donating them directly to a qualified charity. There are tax benefits that go along with this strategy. And QCDs can be used when taking required minimum distributions (RMDs) in retirement.
  • QDI - Qualifying Dividend Income. A dividend which meets IRS requirements to (usually) get a lower tax rate. See: Qualified dividend.
  • QJSA - Qualified Joint and Survivor Annuity (pension plans)

R

  • RAFI - Research Affiliates Fundamental Index®, one of a number of indexes which take account of factors besides market capitalization.
  • RBD -
    • Required Beginning Date. Used by the Internal Revenue Service to designate the latest date on which an IRA, 401k, or qualified retirement account owner must start required minimum distributions (RMDs).
    • Really Bad Day. A Bogleheads' idiomatic term coined by forum member livesoft. An early mention is in Bogleheads forum topic: "Today was a Really Bad Day".
  • RE - Real Estate
  • REIT - Real Estate Investment Trust. An asset class based on real estate interests.
  • RISMAT - Retirement Income Analysis with scenario matrices. A free online book by academic William F. Sharpe. See: RISMAT
  • RMD - Required Minimum Distributions. See: Required Minimum Distributions.
  • RSU - Restricted Stock Unit. A form of company stock compensation for an employee.
  • RTM - Reversion to the Mean. Over the long-term, changes will come back to an average value. See: Remarks by John Bogle regarding the stock market.

S

T

U

V

  • VA - Variable Annuity. An annuity (periodic payment) which fluctuates over time. It is very different from a Fixed SPIA and should only be considered under limited circumstances.
  • VBTLX, VGSLX, VTIAX, VTSAX, ... - Ticker symbols for Vanguard mutual funds.
  • VPW - Variable Percentage Withdrawal. A portfolio withdrawal method, a retirement planning approach, and a collection of related spreadsheets developed by members of the Bogleheads forum.
  • VEU, VNQ, VSS, VTI, VWO, VXUS, ... - Ticker symbols for Vanguard ETFs.

W

Y

Z

  • ZAR - South African Rand

References

  1. Bogleheads forum post: "Re: IANYL :: Can we please add this to the wiki", ResearchMed. May 05, 2022

External links