Bullish flow in Plug Power (PLUG), with shares up 9c, or 4.17%, near $2.25. Options volume roughly in line with average with 61k contracts traded and calls leading puts for a put/call ratio of 0.14, ...

Bullish flow in Plug Power (PLUG), with shares up 8c, or 3.47%, near $2.23. Options volume relatively light with 32k contracts traded and calls leading puts for a put/call ratio of 0.07, compared to a ...

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Engines need spark plugs to burn their air/fuel mixture, and the spark plugs need a jolt of electricity to do their work. Older cars with conventional distributor-based ignition systems did it by ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Winter has arrived, delivering snowstorms, icy rain and plummeting temperatures. That can make it more difficult to keep your utility bill at a manageable level, and if you have family staying with ...

HIGHS Choice of hybrid and plug-in-hybrid powertrains, handily outdoes the gas-only Tucson's fuel economy, better acceleration than the nonhybrid. LOWS PHEV's electric driving range is just so-so, ...