(Bloomberg) -- Marty Malinow's mom never could get her head around what her son did for a living. To friends, she said he was “a stockbroker that does something with the weather.” Malinow couldn’t really object — he knew most people had no clue about financial contracts based on things like sunshine, rainfall and wind.Most Read from BloombergTruce Talks Shift to Qatar as Hamas Hits Israel Border CrossingFrance’s Macron Calls for Reset of Economic Ties With ChinaBuffett Praises Apple After Trimmi