The SEC said Jaspen and Supranonok used contracts-for-differences, which are derivatives allowing for leveraged stock price bets, to trade from 2010 to 2015 in Panera Bread Co, RadioShack Corp (Other OTC: RSHCQ - news ) and other companies based on press releases stolen from the three newswires.
Refer to the input text as context and select the correct relationship between 'RadioShack' and 'trade' from the available options.
Options: owned by, currency, member of, industry