Coinbase Global, Inc. closed at $184.64, down 4.18%.
Large options activity in COIN was dominated by a bearish synthetic put structure into November 2026, selling $210 calls and buying $165 puts for a $329 thousand net credit. Another large trade sold $888 thousand of December 2026 $140 puts. While the put sale reflects some yield-oriented confidence near lower strikes, the featured synthetic position signals institutional caution, with the bulk of premium tilted toward further downside rather than a sustained breakout.
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Options Indicators
COIN’s implied volatility stands at 68.71%, and with an IV percentile of 35.32%, current volatility conditions look broadly neutral rather than extreme. Although the absolute IV level is still high, the IV/HV ratio of 0.86 suggests implied volatility is running below historical realized volatility, which points to options being relatively fairly priced to slightly inexpensive rather than richly valued. The Call/Put volume ratio is 1.70.
Large Trades
A synthetic put structure with a net credit of $329 thousand stood out as the largest featured trade, built by selling the November 20, 2026 $210.00 call and buying the November 20, 2026 $165.00 put for 1,400 contracts each. With COIN referenced at $184.64, the short call was out of the money and the long put was also out of the money, creating a bearish synthetic position that benefits from downside pressure while collecting premium upfront. The net credit framing suggests the trader was expressing a directional bearish view rather than paying up for pure protection, positioning for weakness into the 2026 expiration window.
A put sale worth $888 thousand was the other displayed large trade, with 1,200 contracts sold at the December 18, 2026 $140.00 strike. Since the strike sat below the $184.64 spot reference, the put was out of the money, making this a moderately bullish or yield-oriented stance that profits if COIN stays above $140.00 through expiration. Strategically, this kind of trade often reflects willingness to accumulate shares at a lower effective entry point or simply collect premium on the view that downside risk remains contained.
Overall, the large-trade flow leans clearly bearish. Although there was one notable out-of-the-money put sale showing some constructive sentiment, the dominant trade was a larger bearish synthetic put position, and the broader balance of premium in the bulk orders points to traders being more focused on downside exposure than upside participation. The takeaway is that institutional-sized positioning is tilted toward caution on COIN, with sentiment favoring further weakness or at least a more defensive outlook rather than a sustained bullish breakout.
Strategy Reference
For traders seeking a low-assignment-probability premium sale, consider the December 18, 2026 $140.00 put, which sits roughly 24% below spot and aligns with the existing bullish put sale; alternatively, a bear put spread such as buying the $165 put and selling the $140 put in the same December 2026 expiry reduces upfront cost and margin while expressing a more contained bearish view compared to the featured synthetic put.
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