Yearn Finance is really risky. Imagine how far it moved up is how deep it will fall. I saw this coin at binance when it was 9K usd price. But I never wanted to risk my money right there because it is just a hype. If we look at the market cap, it is being manipulated by whales. This is just a financial advise, bitcoin dumped season during 2017 should be warned to all of us that there is up and down in market.