EQIX – Equinix, Inc. – The provider of global data center services appeared on our ‘hot by options volume’ market scanner in afternoon trading after one options investor initiated a bearish put spread on the stock in the December contract. EQIX shares are currently up 0.60% to stand at $102.95 as of 3:15 pm ET. The put spreader may be building up the pessimistic play as a hedge against the firm’s third-quarter earnings report scheduled for October 21 after the close. The trader purchased 4,168 puts at the December $100 strike for premium of $4.90 each, and sold 4,168 puts at the lower December $90 strike at a premium of $1.85 apiece. The net cost of the transaction amounts to $3.05 per contract, thus positioning the trader to profit should EQIX shares fall 5.80% from the current price to slip beneath the effective breakeven point to the downside at $96.95 by expiration day in the final month of 2010. Maximum potential profits of $6.95 per contract are available to the investor should shares plummet 12.6% to trade below $90.00 by December expiration.