ARNA – Arena Pharmaceuticals, Inc. – Shares of the biotechnology firm surged 14.6% this morning to a new 52-week high of $8.00 inspiring options investors to establish near-term bullish stances on the stock as the battle royal between the firm and its competitors to get an obesity drug on the market continues to rage. Arena’s shares are currently up 7.90% to stand at $7.53 as of 12:35 pm ET. Investors positioning for continued upward movement in the price of the underlying shares picked up 1,900 now in-the-money calls at the August $7.0 strike for an average premium of $0.93 apiece. In-the-money call coveters make money if Arena’s shares are trading above the average breakeven price of $7.93 at expiration. Buying interest spread to the higher August $8.0 strike where bulls purchased approximately 2,600 calls for an average premium of $0.58 each. Arena’s shares must rally 13.95% over the current price of $7.53 in order for August $9.0 strike call buyers to start to accumulate profits above the breakeven point to the upside at $9.58 by expiration day in August. Other optimists paid an average premium of $0.27 per contract to take ownership of 1,000 calls at the August $9.0 strike. Traders long the higher-strike calls profit as long as ARNA’s shares jump 23.1% to surpass the breakeven price of $9.27 by August expiration. Options traders exchanged more than 46,900 calls on the stock by 12:42 pm ET. Approximately 2.35 calls changed hands on Arena for each single put option in action thus far in the trading session.
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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