Bears at Work as AMAG Pharmaceuticals Shares Head Lower

Today’s tickers: AMAG, BID, ERIC, BAX, NVDA, VIT, BVF & ETFC AMAG - AMAG Pharmaceuticals, Inc. – Safety concerns surrounding AMAG’s Feraheme, the biopharmaceutical firm’s intravenous iron-replacement therapy for patients with chronic kidney disease and its lead product, continue to drive shares to new lows. Shares are down 4.00% at $18.15 as of 3:20 pm ET, but earlier plunged 11.6% to touch down at an intraday- and 4-year low of $16.70. Today’s low of $16.70 put shares down 68.2% since January 12, 2010, when the stock was trading up at its 52-week high of $52.49. Erosion in the price of AMAG’s shares accelerated at the end of August when the FDA added Feraheme to a list of products touting serious risks and connected the drug to unspecified serious cardiac disorders. One options investor appears to be positioning for shares to continue to decline by enacting a ratio put spread in the October contract. The trader purchased approximately 2,500 puts at the October $18 strike for premium of $1.98 each, and sold roughly 5,000 puts at the lower October $16 strike at a premium of $0.84 apiece. Average net premium paid to establish the spread amounts to $0.30 per contract. Thus, the strategist stands ready to profit if AMAG’s shares slip beneath the effective breakeven price of $17.70 by expiration. Maximum potential profits of $1.70 per contract are available to the trader if AMAG shares fall 11.85% from the current price of $18.15 to settle at $16.00 at expiration. The ratio of twice as much sold puts as long puts held by the investor expose him to losses should shares collapse below the effective lower breakeven price of $14.30 by expiration day next month. BID - Sotheby’s, Inc. – Shares of the auctioneer fine art, antiques and other collectibles rallied as much as 7.65% this afternoon to touch an intraday high of $35.86. One options investor bought call options back in August and was well positioned to book profits on today’s rally. It looks like the trader originally purchased some 1,000 calls at the October $35 strike at an average premium of $0.90 each back on August 11, 2010, when BID’s shares were trading at a volume-weighted average price of $29.41. Shares have since increased significantly, boosting premium on the October $35 strike calls. Thus, the bullish player was able to sell all 1,000 lots at that strike for a premium of $1.95 each today.…