This contract, valued at up to $2.8 million, is the first order to supply liquid hydrogen to the U.S. and validates Plug Power's ability to meet NASA's stringent hydrogen standards, which require high ...

Learn how 'Buy to Cover' transactions work to close short positions, buy back borrowed shares, and manage margin trades ...

Discover how to adjust your options strike price after trading with strategies like offsetting trades and understand the exercise process for American and European options.