Help Save & Exit Brooks Co. purchases various investments in trading securities at a cost of $50.000 on December 27, 2017. (This is its first and only purchase of such securities.) At December 31, 2017, these securities had a fair value of $70,000 1.8 3. Prepare the December 31, 2017. year-end adjusting entry for the trading securities portfolio and the January 3, 2018, entry when Brooks sells a portion of its trading securities (that had originally cost $25,000) for $30,000. (if no entry is required for a transaction/event, select "No journal entry required in the first account field.) View transaction list Journal entry worksheet