By Pete Najarian, co-founder of OptionMonsterNEW YORK -- Financials were on the move Tuesday, and the fast money was targeting JPMorgan ( JPM). OptionMonster's tracking systems detected heavy volume in the Weekly 52.50 calls expiring this Friday, with big trades hitting early for 11 cents to 15 cents. An even 16,000 traded in volume far above the strike's previous open interest of 2,685 contracts, indicating that new positions were established. These calls lock in the price where shares can be purchased in the financial giant, letting investors cheaply position for a rally. These options also control the amount of money that can be lost if the stock falls. JPMorgan shares closed Tuesday up 1.19% to $51.13. The question is whether the stock can hold onto its gains, which is a tough one to answer with Syrian action looming and possible changes in monetary policy by the Federal Reserve. But the use of short-term options keeps risk to a minimum while ensuring that investors won't miss a pop in the shares. Overall calls outnumbered puts in the name by about 59,000 to 14,000, a reflection of the session's bullish sentiment. Najarian owns JPM calls.