SD - Yesterday, "smart" money until 3pm. Afterwards and today, semi-smart money. Monday should be everybody else.
GTGP - Thinking this is possibly a pump and dump scheme perpetrated by management. No filings makes me think that. Worth a look and possibly small stake gamble, but no more than that.
DROP - Gapped up today, and if it can hold the closing low to be higher than yesterday's opening low, should be good to go next week. Half a million volume not bad for Friday before a holiday weekend. Short term, many penny players and flippers holding this back. Long term fundies exceptionally good. Better play than GTGP - by far.