Rules of The Stock Market Game

Rules of The Stock Market Game


  • Each team begins the simulation with $100,000 in cash and may borrow additional funds.
  • Teams that buy on margin mustmaintain the Minimum Maintenance requirement. 
  • Interest is charged weekly on negative cash balances at an annual rate of 7%, and credited weekly on positive cash balances at an annual rate of 0.75%.
  • Interest is calculated daily, then summed for the week (Saturday – Friday) and posted Saturday (with Friday's date). 
  • The daily rate is based on a 365-day year. Daily Interest = Cash x Appropriate Interest Rate (as a decimal) / 365. 
  • Bond coupon payments will be posted when due. Bond buyers will also be charged for accrued interest since the

last coupon payment. Bond sellers will receive accrued interest since the last coupon payment.

3. Teams may trade only stocks and mutual funds listed on the NASDAQ Stock Market and the New

York Stock Exchange. Teams cannot trade over-the-counter or “pink sheet” stocks since they often

price incorrectly. In addition, extremely volatile stocks or stocks that trade infrequently are not

permitted and may be liquidated to protect portfolio stability. SMG reserves the right to cancel

transactions in these securities as deemed necessary.

4. Some regions may also trade a pre-determined group of municipal, corporate, and Treasury bonds.

Only bonds provided by SMG may be traded. These bonds will be investment grade, with S&P

ratings of "BBB" or higher. Teams cannot trade unrated bonds or those with lower than “BBB”

ratings, also known as high-yield or “junk” bonds, as they often carry higher default risk.

5. A record of a team's portfolio and transactions will be available daily. A team will not receive a

portfolio ranking nor be listed in regional rankings until its initial transaction is entered successfully.

A student can only be assigned to ONE portfolio per game period.

6. Teams do not have to liquidate their portfolios at the end of the game. Winners will be determined

based on either Total Equity or Percent Return Above/Below S&P 500 Growth. (Some states may use

additional criteria to determine winners). For more information, please click here.

Transaction Rules

7. The minimum market capitalization for stocks in SMG is $25 million, and SMG does not permit

buying stocks or mutual funds or short selling stocks that trade below $3 per share the day before

and the day of execution. These low-priced stocks, also known as “penny” stocks, are risky and

volatile investments. Sell transactions on long positions and short cover transactions on short

positions will be accepted, even if the price is less than $3 per share.

8. All stock and mutual fund buy orders and stock short sell orders must be for a minimum of 10

shares. Sell orders on existing inventory and short cover orders for less than 10 shares will be

permitted. Municipal and corporate bonds can only be traded in $1,000 increments, and Treasury

bonds can only be traded in $100 increments. Bonds and mutual funds cannot be sold short.

9. Stock transactions in Real-Time games are executed at market price at the time of entry, while bond

and mutual fund transactions are treated as End-of-Day transactions and are executed at that day's

closing price. End-of-Day game transactions are priced at market daily closing prices for all asset

types. Participants of End-of Day games may delete pending transactions prior to market close.

10. SMG is run Monday – Friday with hours of operation from 9:30AM ET – 4PM ET. Teams may trade

on any day the participating stock markets are open. Orders may be entered seven days a week

during hours the system is available. Stock trades entered after close of market (4PM ET) or on

weekends and market holidays will be priced at the next business day’s opening price for Real-Time

games and at the next business day's closing price for End-of-Day games. Bonds and mutual funds

will be priced at the next business day's closing price for both Real-Time and End-of-Day games.

11. Transactions entered with a limit price will not be held past the initial attempt to price the

transaction during market hours. This applies to both Real-Time and End-of-Day games.

12. Trades can only be processed in whole. There are no partial fills.

13. A $5-per-trade commission fee is charged on all transactions. An SEC fee is also charged on all sell

transactions.

14. Short positions held in stocks are marked to the market daily and the resulting gain or loss is added

or subtracted from Cash Balance. No mark-to-market transactions are posted in Transaction History.

(Please note: there is no short-selling allowed in non-margin cash accounts.)

15. No back posting of trades will be done for trades of securities not contained within the SMG Security

Table. Once the missing security has been added, the security can be traded. The same rule applies

to trades rejected if they are incorrectly pricing below $3. Once the pricing has been corrected, the

security can be traded. There is no post-dating of trades due to the system being unavailable.

16. Stock and cash dividends and stock splits are automatically computed into portfolios. Every effort is

made to simulate as closely to real life as possible a variety of other corporate actions (mergers,

acquisitions, spinoffs, etc.), which may include the standard three-day settlement period. In this

case, it may be necessary to suspend trading of a given security until the action can be completed.

Canadian stocks trading on US exchanges cannot be traded between a split's record date and its

payout date. It is the responsibility of teams to check their portfolios for accuracy and notify their

Coordinator by email of any problems that are encountered.

Additional Rules

17. Any violation of the rules of the SMG may result in the invalidation of a transaction. Repeated

violation of the rules may result in the disqualification of a team.

18. Additional rules have been developed in some states and, if applicable, have been included in your

Coordinator's Information Page. It is the responsibility of your team to learn and abide by all rules.