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Sorry, I couldn't find pricing data for that day. The closing price for Gladstone Investment (GAIN) on December 31, 2020 was $5.78. It was up 0.1% for the day (up 0.4% from previous close). The latest price is $13.60.

DATEOPENHIGHLOWCLOSEVOLUME
December 31 2020 20:30
$5.78
$5.79
$5.77
$5.78
12,393
December 31 2020 19:30
$5.79
$5.81
$5.78
$5.78
13,252
December 31 2020 18:30
$5.78
$5.79
$5.77
$5.78
10,747
December 31 2020 17:30
$5.79
$5.79
$5.77
$5.78
22,611
December 31 2020 16:30
$5.82
$5.82
$5.78
$5.79
15,351
December 31 2020 15:30
$5.83
$5.84
$5.78
$5.82
30,938
December 31 2020 14:30
$5.77
$5.83
$5.71
$5.82
54,517
Daily pricing data for Gladstone Investment dates back to 6/23/2005, and may be incomplete.