Cerebras Systems closed at USD 120.66, down 5.15 %.
Cerebras Systems saw a standout $2.06 million bear put spread among large options trades, overshadowing the headline Call/Put volume ratio of 1.19. The institutional-sized flow was decisively bearish, with the only large transaction being a net-debit put spread targeting lower strikes. This absence of offsetting bullish bulk orders signals institutional positioning tilted toward weakness in Cerebras Systems.
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Options Indicators
Cerebras Systems has an implied volatility of 90.13%, and its IV percentile stands at 37.38%, which places current volatility in a neutral historical zone rather than an especially elevated one. In other words, while the absolute IV level is high, relative to its own recent range the options are not notably expensive or cheap. With an IV/HV ratio of 1.22, implied volatility is running above realized volatility, indicating the options market is pricing in somewhat richer forward volatility expectations than the stock has recently delivered.
The Call/Put volume ratio is 1.19.
Large Trades
A bear put spread with a net debit of $2.06 million was the standout large trade, pairing the purchase of 4,250 November 20, 2026 $115.00 puts with the sale of 4,250 January 15, 2027 $85.00 puts. With CBRS referenced at $120.66, both legs were out of the money at execution. As a spread strategy, the trade should be sized by its net debit rather than by adding the legs, and the $2.06 million net outlay points to a bearish directional position in which the trader paid premium to position for downside while partially financing the long put exposure through the short lower-strike put leg. The structure suggests a defined-risk bearish view, targeting a meaningful decline but not an outright collapse far below the short-put strike.
Overall, the large-trade flow points clearly bearish. The only highlighted institutional-sized transaction was a put spread established for a net debit, which is typically consistent with a trader willing to spend premium for downside exposure rather than collect income or express neutrality. The absence of offsetting bullish large trades further reinforces the message that sentiment in the bulk orders was decisively skewed toward expectations of weakness in CBRS.
Strategy Reference
For a low assignment probability on the short side, a seller could consider the $85.00 put, which also serves as the short leg of the highlighted spread; alternatively, a bear put spread bounded by the $115.00 and $85.00 strikes defines risk while reducing net premium spent.
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