The Yieldmax Coin Option Income Strategy ETF (CONY) closed down 2.54% at $13.79 on December 27th, as its underlying asset, Coinbase Global (COIN), experienced a 2.97% decline to $266.25. The drop in Coinbase shares was primarily driven by insider selling activity, with Director Frederick Ernest Ehrsam III offloading 11,421 shares, raising concerns among investors. This transaction, disclosed in a legal filing, contributed to the stock's downward pressure, as it represented a significant reduction in the director's holdings. Additionally, the broader cryptocurrency market faced volatility, with Bitcoin's price declining to $96,000, further impacting sentiment around crypto-related stocks. The expiration of $18 billion in Bitcoin and Ethereum options added to the market's unease, as traders anticipated sharp moves and potential volatility.