someone with a lot of money to spend has taken a bearish stance on marathon oil mro and retail traders should know we noticed this today when the big position showed up on publicly available options history that we track here at benzinga whether this is an institution or just a wealthy individual we dont know but when something this big happens with mro it often means somebody knows something is about to happen so how do we know what this whale just did the overall sentiment of these bigmoney traders is split between 18 bullish and 81 bearish out of all of the special options we uncovered 2 are puts for a total amount of 247046 and 9 are calls for a total amount of 790565 taking into account the volume and open interest on these contracts it appears that whales have been targeting a price range from 230 to 280 for marathon oil over the last 3 months looking at the volume and open interest is an insightful way to conduct due diligence on a stock this data can help you track the liquidity and interest for marathon oils options for a given strike price below we can observe the evolution of the volume and open interest of calls and puts respectively for all of marathon oils whale activity within a strike price range from 230 to 280 in the last 30 days marathon oil option volume and open interest over last 30 days where is marathon oil standing right now   with a volume of 2186510 the price of mro is up 024 at 2556   rsi indicators hint that the underlying stock may be approaching overbought   next earnings are expected to be released in 34 days options are a riskier asset compared to just trading the stock but they have higher profit potential serious options traders manage this risk by educating themselves daily scaling in and out of trades following more than one indicator and following the markets closely