Cerebras Systems ended the session at 108.94 USD, sliding 7.66% after opening at 113.96 USD, touching an intraday high of 114.19 USD and a low of 107.90 USD on volume of about 11.1 million shares.
Large options trades in Cerebras Systems reflected a decisively bearish tilt on Wednesday, headlined by a $10.82 million net-credit short put spread and a $10.26 million net-debit long put spread. The simultaneous appearance of a premium-collecting put sale and a sizable directional put purchase suggests institutions were actively positioning for continued weakness rather than a sharp rebound, with bearish flow dominating the session.
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Options Indicators
Cerebras Systems has an implied volatility of 93.72%, and with an IV percentile of 41.82%, current option volatility sits in a neutral historical range rather than an elevated one. That suggests the market is assigning very high absolute volatility to the name, but relative to its own recent history, options are not especially expensive or especially cheap. The IV/HV ratio of 1.30 further indicates implied volatility is running above realized volatility, so option premiums still carry a meaningful forward-looking volatility cushion.
The Call/Put volume ratio is 0.72.
Large Trades
A put-selling spread structure collected $10.82 million in net credit, making it the largest displayed trade and signaling a premium-collection stance with a mildly bearish-to-rangebound bias. Specifically, the trader sold the October 23, 2026 $135.00 put and the October 23, 2026 $130.00 put, and both strikes were in the money versus the $108.94 reference stock price. As a same-direction dual-sell put combination, this is best read as a spread-style premium-selling trade rather than an outright crash hedge, with the position size defined by the preprocessed net credit of $10.82 million. Strategically, this type of structure points to an investor willing to monetize elevated put premium and expressing a view that downside may stay controlled rather than accelerate sharply from here.
A put-buying spread structure followed closely behind with a $10.26 million net debit, representing a clear downside directional bet on further volatility or weakness. The trader bought the October 23, 2026 $140.00 put and the October 23, 2026 $135.00 put, with both contracts also in the money relative to the $108.94 stock reference. As a same-direction dual-buy put combination, this is a bearish spread-style position using premium outlay to gain downside exposure rather than collect income, and its size should be read from the preprocessed net debit of $10.26 million. Overall, the bulk-order flow is decisively bearish: although one large trade was a premium-selling put structure that leans more neutral-to-bearish than outright negative, the other major trade was a sizable long-put spread, and the full large-trade summary shows bearish activity overwhelmingly dominating bullish flow. Taken together, institutional positioning appears skewed toward caution and downside protection, with market sentiment favoring continued pressure on CBRS rather than a sustained upside move.
Strategy Reference
For traders aligned with the bearish flow but seeking a defined-risk approach, a bear put spread using the $105.00/$95.00 strike zone may capture further downside while capping premium outlay; alternatively, premium sellers may target a lower-probability OTM strike such as the $80.00 put for a more controlled assignment risk profile.
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