Marijuana legalization in California will increase the number of people that currently have access to recreational pot by over 5 fold. After all, California in itself boasts the world's 6th largest economy. Once California passes legal marijuana then the rest of the nation will soon follow. The passive investment opportunities are limited almost exclusively to risky penny stocks that trade over-the-counter with little oversight. Although high risk, marijuana stocks will likely experience epic returns over the coming months. Fully legal recreational marijuana in California will be an absolute game changer!

Here is a list of 20 actively-traded U.S. based marijuana stocks that comprise the newly launched MJ Index (www.allmarijuanastocks.com/MJ-Index/). Grouped below into 4 market capitalization levels; microcap, small cap, mid cap and large cap.

5 microcap marijuana stocks (under $1M market capitalization)
BTFL, MJMJ, NGBL, PZOO, VRCI

Monarch America, Inc. (BTFL)
Monarch America, Inc., through its The Big Tomato, Inc. subsidiary, sells and distributes hydroponic lights and equipment to the indoor gardeners and commercial growers. Company website www.monarchamerica.com

The MaryJane Group, Inc. (MJMJ)
The MaryJane Group, Inc., through its subsidiaries, provides lodging, events, spa services, and brand merchandising primarily in the cannabis industry. The company operates and manages Bud + Breakfast locations that offer bed and breakfast to the recreational marijuana industry. Company website www.themaryjanegrp.com

Notis Global, Inc. (NGBL)
Notis Global, Inc., together with its subsidiaries, provides specialized consulting services to the hemp and marijuana industry primarily in Arizona, California, Colorado, Nevada, Illinois, Oregon, and Washington. The company provides Notis Global dispensing system for the control and dispensing of medical marijuana industry. Company website www.notisglobal.com

Pazoo, Inc. (PZOO)
The company offers pharmaceutical testing laboratory services to the medical cannabis industry; and marketing and sales agent services for the distribution of non-controlled hemp products. Company website www.pazoo.com

Verde Science, Inc. (VRCI)
Verde Science, Inc., a pharmaceutical research and development company, focuses on developing a portfolio of cannabinoid based prescription medicines for various medical conditions. Company website www.verdescienceinc.com

5 small cap marijuana stocks ($1M - $20M market capitalization)
AGTK, GRNH, HEMP, PHOT, VAPE

Agritek Holdings, Inc. (AGTK)
Agritek Holdings, Inc. offers various products and services to the medicinal marijuana sector in the United States. It distributes hemp-based nutritional products; and provides solutions for electronically processing merchant transactions. Company website www.agritekholdings.com

GreenGro Technologies, Inc. (GRNH)
GreenGro Technologies, Inc. designs, manufactures, and markets green eco-friendly vertical cultivation systems in the United States. Company website www.greengrotech.com

Hemp Inc. (HEMP)
Hemp Inc. produces products made from industrial hemp. The company also offers products and services to the medical and recreational marijuana industries. Company website www.hempinc.com

Growlife, Inc. (PHOT)
GrowLife, Inc. is a nationally recognized cultivation brand, providing world-class hydroponic equipment, lighting, nutrients, media, and other cultivation supplies to commercial and urban operations. Company website www.growlifeinc.com

Vape Holdings, Inc. (VAPE)
Vape Holdings, Inc. engages in designing, marketing, and distributing ceramic vaporization products. The company offers blended ceramic vaporization element for torched, electronic, and portable vaporizers under HIVE brand. Vape Holdings, Inc. is based in Chatsworth, California. Company website www.vapeholdings.com

5 mid cap marijuana stocks ($20M - $100M market capitalization)
CANN, CVSI, MSRT, SRNA, ZDPY

General Cannabis Corp. (CANN)
General Cannabis Corporation provides services to the regulated cannabis industry in the United States. The company engages in the acquisition and leasing of cultivation space and related facilities to licensed marijuana growers and dispensary owners. Company website www.generalcann.com

CV Sciences, Inc. (CVSI)
CV Sciences, Inc., a life science company, focuses on developing and commercializing novel therapeutics utilizing synthetic Cannabidiol (CBD). Company website www.cvsciences.com

MassRoots, Inc. (MSRT)
MassRoots, Inc. operates a technology platform for the cannabis community in the United States. The company’s mobile network enables users to share cannabis content to connect with the legalization movement. Company website www.massroots.com

Surna Inc. (SRNA)
Surna Inc. designs, develops, manufactures, and distributes systems for controlled environment agriculture (CEA). It offers chillers, lights, reflectors, and irrigation systems; Hybrid Building that uses the sun as its primary light source; air sanitation technology for mold and mildew risk mitigation to cultivators; and mechanical, electrical, and plumbing services. Company website www.surna.com

Zoned Properties Inc. (ZDPY)
Zoned Properties Inc., a real estate company, engages in operating, leasing, and managing commercial properties primarily in Arizona. The company also holds properties that have licensed medical marijuana operators signed to lease agreements. Company website www.zonedproperties.com

5 large cap marijuana stocks ($100M+ market cap)
AXIM, INSY, KSHB, MJNA, TRTC

AXIM Biotechnologies, Inc. (AXIM)
AXIM Biotechnologies, Inc., a biotechnology company, focuses on the treatment of pain, spasticity, anxiety, and other medical disorders with the application of cannabinoids based products. Company website www.aximbiotech.com

INSYS Therapeutics, Inc. (INSY)
Insys Therapeutics, Inc., a specialty pharmaceutical company, develops and commercializes supportive care products. The company markets Subsys, a sublingual fentanyl spray for breakthrough cancer pain in opioid-tolerant cancer patients in the United States. Company website www.insysrx.com

Kush Bottles, Inc. (KSHB)
Kush Bottles, Inc. markets and sells packaging products and solutions for the medical and recreational cannabis industries in the United States. Company website www.kushbottles.com

Medical Marijuana, Inc. (MJNA)
Medical Marijuana, Inc., an investment holding company, operates in the medical marijuana and industrial hemp markets. Its products range from patented and proprietary based cannabinoid products to seed and stalk or isolated high value extracts manufactured and formulated for the pharmaceutical, nutraceutical, and cosmeceutical industries. Company website www.medicalmarijuanainc.com

Terra Tech Corp. (TRTC)
Terra Tech Corp., through its subsidiaries, engages in the design, marketing, and sale of hydroponic equipment with proprietary technology to create sustainable solutions for the cultivation of indoor agriculture in Newport Beach and Irvine, California. Company website www.terratechcorp.com

MJ Index is available at http://www.allmarijuanastocks.com/MJ-Index/

A free website that lists most of the actively traded marijuana stocks can be found at http://www.allmarijuanastocks.com which ranks them all using a 1 to 5 star rating system based on their 3 year stock price highs compared to their current stock price.