ARNA – Arena Pharmaceuticals, Inc. – Options on the biotechnology company are active ahead of the firm’s second-quarter earnings report slated for release after the closing bell this afternoon. Shares rallied as much as 5.15% earlier in the session to an intraday high of $7.54, but are currently trading a lesser 1.95% higher on the day at $7.31 as of 3:35 pm ET. One optimistic investor hoping to see Arena’s shares appreciate ahead of October expiration enacted a bullish risk reversal. The trader appears to have sold roughly 9,000 puts at the October $7.0 strike for an average premium of $2.40 each in order to buy the same number of calls at the October $12.5 strike for an average premium of $0.60 apiece. The investor reels in a net credit of $1.80 per contract on the risk reversal, and keeps the full amount received on the transaction as long as Arena’s shares exceed $7.00 through October expiration. Additional, and potentially unlimited profits, start to accumulate for the trader if Arena’s shares surge 71% to exceed $12.50 by expiration day in October. The credit $1.80 credit pocketed by the investor provides limited protection against losses should Arena’s shares nosedive ahead of expiration. The trader starts to lose money if the price of the underlying stock falls 28.9% to trade beneath the effective breakeven price of $5.20 by expiration day. Options implied volatility on Arena Pharmaceuticals is up 5.5% to 197.15% ahead of earnings.
Affiliation: Interactive Brokers
Andrew Wilkinson is the senior market analyst at Interactive Brokers Group, where he provides daily commentary and analysis on U.S. equity options trading throughout the trading day. Andrew provides webinars designed to explain option-related trading scenarios covering futures, fixed income, forex and equities.
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