Tesla (TSLA.US) options contracts were the most actively traded among individual stock options, among which, the US$350 and US$400 options expiring on Friday (15th) were the two most actively traded contracts, according to a Reuters report.The report quoted Steve Sosnick, chief strategist at Interactive Brokers, as saying that trading was concentrated on the US$400 call contracts.Related NewsNon Farm Payrolls for Dec in United States is 256K, higher than the previous value of 227K. The forecast was 160K.Over 2.5 million Tesla options contracts were traded in a single day, more than double the usual volume, with contracts expiring on Friday accounting for about 56% of the total trades, according to Trade Alert.Tesla's stock price spiked 9% yesterday (11th) to US$350.(Real-time Streaming US Stocks Quote; Except All OTC quotes are at least 15 minutes delayed.)