Summary:
Some rich people who can buy a lot of things are betting that a company called Vale will not do well. They use special contracts called options to make their predictions. Most of them think the price of Vale's stock will go down, so they buy something called puts. A few of them think the price will go up, so they buy something called calls. These rich people have a range of prices where they expect Vale's stock to be in the next few months. Read from source...

- The title is misleading and sensationalist, implying that only the large investors (whales) are making significant bets on Vale options, while ignoring the smaller retail traders who may also be active in the market.
- The article lacks a clear thesis statement or main argument, and instead jumps from describing the whales' activity to discussing their predicted price range and volume trends, without explaining how they are related or why they matter for investors.
- The use of terms like "bearish" and "bullish" is vague and subjective, as different traders may have different interpretations of these sentiments depending on their own strategies and preferences. A more precise way to describe the whales' expectations would be to indicate whether they are buying calls (which profit from rising prices) or puts (which profit from falling prices), and at what strike price and expiration date they are trading.
- The article does not provide any evidence or analysis to support its claim that the big players have been eyeing a specific price window of $11.0 to $17.0 for Vale, other than referring to the options history and open interest data. However, these statistics do not necessarily reflect the whales' intentions or projections, as they may be influenced by various factors such as liquidity, volatility, supply and demand, etc.
- The article ends abruptly with a sentence that does not conclude the main point or provide any value to the readers, but rather leaves them hanging with an incomplete statement about the open interest trends.

Based on the information given in the article, it seems that market whales are betting heavily on a bearish outlook for VALE options. They have purchased a majority of puts over calls, indicating a high level of pessimism about the stock's performance. The predicted price range is also quite wide, from $11.0 to $17.0, which suggests that there is significant uncertainty and volatility in the market. As an AI assistant, I would recommend that investors approach VALE with caution and consider hedging their positions or diversifying into other assets. The risks of investing in VALE options are high at this time, as the whales may be driving down the price and creating a negative feedback loop. However, if one is willing to take on this risk, they could potentially profit from short selling or writing puts, as these strategies benefit from declining stock prices.