DeFusco Partners uses a rule-based model to manage its cash position. It has established a minimum cash balance of $200,000, a maximum cash balance of $800,000, and a return point of $400,000

DeFusco Partners uses a rule-based model to manage its cash position. It has established a minimum cash balance of $200,000, a maximum cash balance of $800,000, and a return point of $400,000. The cash balance is currently $400,000. Whenever the daily cash balance reaches or falls outside of the control limits, DeFusco will purchase or sell marketable securities to bring the cash balance to the return point. Given the daily cash flows below (in $1,000s), calculate any needed security purchases or sales and the ending daily balance.

Day                  1          2          3          4          5          6          7          8          9          10
Cash flow        -50       -75       -225     300      100      0          -50       -50       -175     50
Day                  11        12        13        14        15        16        17        18        19        20
Cash flow        50        450      200      50        -50       -100     -25       -25       -100     -100
Cash flow        50        450      200      50        50        100      25        25        100      100
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