Free FINRA SIE (Securities Industry Essentials) Formula and Limits Sheet (2026)
Every SIE formula you need on the test, grouped by topic, rendered with full math notation. 49 formulas across 4 topics, calibrated to the 2026 syllabus. Free forever, no signup required.
All SIE Formulas
Understanding Products and Their Risks
6 items
Mutual fund sales charge percentage
, POP = public offering price (ask), NAV = net asset value (bid). Trap: divide by POP, not NAV.
Mutual fund NAV per share
, Assets = total fund assets, Liabilities = total fund liabilities, Shares = shares outstanding
Current yield (bond)
, uses current price (not par). Discount: nominal < CY < YTM; order reverses at a premium.
Mutual fund public offering price from NAV
, POP = public offering price, NAV = net asset value per share, SC = sales charge as a decimal. Ex:
Options intrinsic value and breakeven
Call: , BE = Strike + Premium. Put: , BE = Strike - Premium. IV (only when in-the-money); Premium = Intrinsic + Time value.
Dividend yield (stock)
, Annual Dividend = sum of dividends paid per share over a year; result expressed as a percentage.
SIE Limits and Thresholds
Knowledge of Capital Markets
12 items
IAR registration in most states requires the Series 65 exam or the Series 7 plus Series 66 combination.
An accredited investor needs $200,000 income ($300,000 joint) or $1M net worth excluding primary residence.
FDIC insures bank deposits up to $250,000 per depositor, per insured bank, per ownership category.
An investment adviser registers with the SEC at $110 million+ in AUM and with state regulators if under $100 million.
The SEC was created by the Securities Exchange Act of 1934, while the Federal Reserve was created in 1913 and SIPC in 1970.
The Federal Reserve writes Regulation T setting equity initial margin at 50%, while Regulation U covers bank loans for purchasing securities.
Regulation A Tier 2 permits exempt offerings up to $75M over 12 months.
SIPC covers $500,000 per customer at a failed broker-dealer, with a $250,000 cash sub-limit.
A recession is defined as GDP shrinking for two or more consecutive quarters, while the four phases of the business cycle are expansion, peak, contraction, and trough.
The third market is listed securities traded OTC, while the fourth market is institution-to-institution trading via ECNs and dark pools with no broker-dealer intermediary.
The Fed reduced reserve requirements to zero in 2020 and has not restored them since.
The yield curve spread, a leading indicator, is measured as the 10-year minus 3-month (or 10-year minus 2-year) Treasury yield.
Understanding Products and Their Risks
20 items
Rights typically expire in 30-45 days with strikes below market, while warrants last 5+ years with strikes above market at issue.
Modern portfolio theory shows 20 to 30 well-chosen stocks capture most diversification benefit, reducing unsystematic risk.
Tax-equivalent yield equals the muni yield divided by (1 − tax rate).
The conversion ratio equals par divided by conversion price, so a $1,000 bond with a $50 conversion price converts into 20 shares.
T-notes mature in 2, 3, 5, 7, and 10 years, while T-bonds mature in 20 and 30 years.
Commercial paper has a maximum maturity of 270 days, and negotiable CDs require a $100,000 minimum.
Investment grade ends at BBB- (S&P/Fitch) or Baa3 (Moody's); anything below is high-yield or junk.
T-bills are sold at a discount with maturities of 4, 8, 13, 17, 26, or 52 weeks and pay no coupon.
Standard listed equity options expire the third Friday of the expiration month, and an open-end fund must redeem shares within seven days under Section 22(e).
A REIT must distribute at least 90% of taxable income and invest at least 75% of assets in real estate to retain pass-through tax status.
One standard equity option contract covers 100 shares, and open-end mutual fund NAV is calculated once daily after the 4:00 PM ET market close.
Index options settle in cash using a $100 multiplier, while equity options settle by physical delivery of 100 shares two business days after exercise.
A 529 donor may front-load $90,000 via 5-year gift-tax averaging using the annual exclusion of $18,000 per donor.
Variable annuity withdrawals before age 59½ trigger a 10% IRS penalty on earnings, and surrender charges (CDSC) typically decline over 6 to 8 years.
FINRA's maximum mutual fund sales load is 8.5%, and total 12b-1 fees must stay at or below 0.25% for a fund to call itself "no-load."
A Letter of Intent pledges the breakpoint amount within 13 months and can be backdated up to 90 days, while Rights of Accumulation have no time limit.
Hedge funds avoid 1940 Act registration under 3(c)(1) (≤100 accredited investors) or 3(c)(7) (qualified purchasers) and charge fees on a '2 and 20' model.
A qualified purchaser holds at least $5M in investments individually or $25M for institutions.
ABLE accounts require disability onset before age 46 (raised from 26 effective 2026), cap annual contributions at $19,000 (2026), and exclude balances up to $100,000 from SSI resource limits.
529 plans allow up to $10,000/year per beneficiary for K-12 tuition and up to $10,000 lifetime for student loan repayment.
Understanding Trading, Customer Accounts and Prohibited Activities
6 items
Reg T initial margin is 50%, FINRA maintenance is 25% long and 30% short, with minimum equity of $2,000 to open.
Traditional IRA RMDs begin at age 73 under SECURE 2.0, and early withdrawals before age 59½ trigger a 10% penalty plus tax.
CIP records must be retained for 5 years after account closure and must include name, DOB, physical address, and SSN/ID number.
CTRs must be filed within 15 days for cash over $10,000, while SARs must be filed within 30 days of detection (60 days if no suspect).
Regular-way settlement for stocks, corporate bonds, munis, ETFs, and options is T+1 (Treasuries T+1, cash trades T+0), and the ex-date falls on the record date itself (no longer the day before).
CTRs are filed on FinCEN Form 112 while SARs are filed on FinCEN Form 111.
Overview of the Regulatory Framework
5 items
FINRA Rule 3220 caps business gifts at $100 per person per year, and freeriding triggers a 90-day cash-account freeze.
Under SEC Rule 17a-4, broker-dealer records are retained for 6 years, with the first 2 years readily accessible.
FINRA Rule 2165 permits a temporary hold of 15 business days on a senior's disbursement, extendable by 10, for 25 maximum.
Insider trading civil penalties reach treble damages and criminal penalties reach 20 years imprisonment with $5M individual / $25M entity fines.
MSRB Rule G-37's de minimis lets an MFP give up to $250 per election to a candidate they can vote for; exceeding it triggers a two-year ban on negotiated muni business.