Mutualism can take on many forms: Symbiosis: in which both organisms live together in closely proximity, and in which both generally derive benefit. The relationship is obligate, meaning at least one of the species must be involved in the relationship to survive.
Lowest Option Commission. Lightspeed Trading offers low commissions on options, allowing both occasional and frequent traders to take advantage of competitively-priced options. While the standard fee is an already low $0.60 per contract, active traders who trade more than 500 contracts per month will qualify for even lower rates. Those who trade in excess of 100,000 contracts per month will pay merely $0.20 per contract.
What is a trade discount? A trade discount is a reduction to the published price of a product. For example, a high-volume wholesaler might be entitled to a 40% trade discount, while a medium-volume wholesaler is given a 30% trade discount. A retail customer will receive no trade discount and will have to pay the published or list price. The use of trade discounts allows for having just one published price for each product. The sale and purchase will be recorded at the amount after the trade discount is subtracted.