It may have been Friday the 13th, but cannabis investors didn't suffer such bad luck:

Terra Tech (TRTC) closed strongly and posted the best gain, but on below-average volume. CEO Derek Peterson, who was seen in New York earlier this week, will be participating in a live webinar on Wednesday, December 18th (free registration). GW Pharma (GWPH) rallied for the second straight day on below average volume. Hemp, Inc. (HEMP) closed down on the week despite a low-volume rally. mCig (MCIG) continued its advance, again, though, on weak volume.

GrowLife (PHOT) dropped sharply early but trimmed its losses as volume was below the one-month average. Rob Hunt, President of GrowLife Hydroponics, will be participating in a live webinar on Monday, December 16th (free registration). Medical Marijuana, Inc. (MJNA) also retreated slightly on below-average volume.

The Daily Dab is brought to you by 420 Investor, a large and rapidly growing community of Green Rush investors seeking to capitalize on cannabis. For just a dollar a day on an annual subscription ($360), you can get all of the benefits of being a part of 420 Investor, including analysis, alerts, trade recommendations, chat and video updates. Find out why 420 Investors are addicted to the service. To learn more about the sector, download your free guide.