Carlsville Company, which began operations in 2017, invests its idle cash in trading securities. The following transactions are from its short-term investments in trading securities. 2017

Jan.		20		Purchased 800 shares of Ford Motor Co. at $26 per share plus a $125 commission.
Feb.		9		Purchased 2,200 shares of Lucent at $44.25 per share plus a $578 commission.
Oct.		12		Purchased 750 shares of Z-Seven at $7.50 per share plus a $200 commission.
Dec.		31		Fair value of the short-term investments in trading securities is $130,000.

2018

Apr.		15		Sold 800 shares of Ford Motor Co. at $29 per share less a $285 commission.
July		5		Sold 750 shares of Z-Seven at $10.25 per share less a $102.50 commission.
July		22		Purchased 1,600 shares of Hunt Corp. at $30 per share plus a $444 commission.
Aug.		19		Purchased 1,800 shares of Donna Karan at $18.25 per share plus a $290 commission.
Dec.		31		Fair value of the short-term investments in trading securities is $160,000.

2019

Feb.		27		Purchased 3,400 shares of HCA at $34 per share plus a $420 commission.
Mar.		3		Sold 1,600 shares of Hunt at $25 per share less a $250 commission.
June		21		Sold 2,200 shares of Lucent at $42 per share less a $420 commission.
June		30		Purchased 1,200 shares of Black & Decker at $47.50 per share plus a $595 commission.
Nov.		1		Sold 1,800 shares of Donna Karan at $18.25 per share less a $309 commission.
Dec.		31		Fair value of the short-term investments in trading securities is $180,000.

Required: Prepare journal entries to record these short-term investment activities for the years shown. On December 31 of each year, prepare the adjusting entry to record any necessary fair value adjustment for the portfolio of trading securities.