Patent litigation concerning LED technologies brought on by Royal Philips Electronics settled. Stock gains 23% in one day, and over 300% for the month, thought is still down 55% for the year.

Nexxus Lighting, Inc. Nexxus Lighting manufactures illumination products, including light emitting diode (LED) and fiber optic lighting. The Company offers a range of products include replacement lamps, flood lights and linear strips, signage, channel letter and contour lighting.

Gevo announces shift from biobutanol to ethanol production. Stock drops 35% in one day and sinks to a record low.

Gevo, Inc. GEVO is a start-up phase company that focuses on renewable chemicals and advanced biofuels. The company’s goal is to commercialize alternatives to petroleum-based products. Gevo primarily works on isobutanol and ethanol related products and its principal markets include solvents, coatings, plastics and biofuels.

Tesla substantially reduces 2012 revenue forecast from $560-$600 million to $400-$440 million. Also announces share offering to raise $150 million. Shares fall 10% in one day, but still up 12% annually.

Tesla Motors TSLA is a development-phase company that develops and sells electric vehicles. It currently produces the Tesla Roadster and is developing other products such as the Model S and Model X. Tesla also sells advanced electric vehicle components, such as lithium-ion battery packs, electric motors and gearboxes.