P$212$

Q$8.$ Suppose that $A$ is an individual investor with long positions, and $OL$ represents all the other investors with long positions. All the investors who hold short positions are denoted by SH $.$

Currently, day $0,$A holds $1,000$ contracts long and $OL$ holds $4,200$ long contracts. Starting with the current holdings, determine the holdings of $A,OL,SH,$ as well as the VOlume and the Open Interest after each of the following transactions, as well as the total end result:

Day $0.$ Current holdings. NO TRADING

Day $1.$ A shorts $600$ contracts and $OL$ longs $600$ contracts

Day $2.$ A longs $700$ contracts and $OL$ shorts $700$ contracts

Day $3.$ A longs $200$ contracts and $SH$ shorts $200$ contracts

Day $4.$ A shorts $800$ contracts and $SH$ longs $800$ contracts

Day $5.$ OL shorts $500$ contracts and SH longs $500$ contracts

Use the following table:

$\backslash$table$[[$Day$,$A$,$OL$,$SH$,$VOL,$\backslash$table$[[$OPEN$],[$INTEREST$]]],[0,,,,$cdots$--,],[1,,,,,],[2,,,,,],[3,,,,,],[4,,,,,],[5,,,,,]]$

Please respond to all questions and the table format as well