Quote from riskfreetrading:
It is a good idea (I was going to suggest it last week as a response to your post in the other thread, but I was not sure it was appropriate to ask). Some clarification questions if you do not mind:
1. When you got filled for the straddle, where was exactly ES at?
IT WAS HOVERING AROUND 1325. SINCE I COULDN'T EXECUTE THE LEGS SIMULATEOUSLY, I GOT A HIGHER PREMIUM FOR THE CALL BECAUSE OF A RISE IN THE UNDERLYING. THE FUTURES ENDED UP CLOSING AT 1324.50, SO IT WAS CLOSE ENOUGH FOR ME.
2. Does the current premium you posted above correspond to the premimum when ES was at close?
YES. THE CURRENT PREMIUM IS DERIVED FROM THE CLOSE ON FRIDAY, MARCH 28. THE FUTURES CLOSED AT 1319, FIVE AND A HALF POINTS BELOW THE PREVIOUS THURSDAY'S CLOSE.
If yes, what prices did you use to determine the straddle premium (bid, ask, middle, etc?)
THE BROKER USES SETTLEMENT PRICES.
3. Does your initial margin include the premimum received from sale of straddle? In order words, is it some of your cash + premium? The latter is my understanding, but I wanted to make sure that is also what you meant.
YES. INITIAL MARGIN DOES INCLUDE PREMIUM PLUS SPAN MARGIN. IN OTHER WORDS, INITIAL MARGIN FOR THE TRADE WAS ABOUT $6500.00. SUBTRACT THE PREMIUM RECEIVED (3760) AND YOU GET $2740.00. SO, I BASICALLY HAVE TO PUT UP THAT AMOUNT AS PERFORMANCE BOND FOR THE SHORT STRADDLE.
It would also be helpful if you could post the high and low of the straddle premimum, as well as the high and low of margin requirement. The latter is important as it would determine the true rate of return on margin (particularly if the maintaince margin is hit and covered by the other cash in account).
THE HIGHEST POINT OF THE PREMIUM WAS ABOUT TWO POINTS ABOVE THE INITIAL PREMIUM. TIME DECAY IS THE KEY, SO I WOULD EXPECT THE TOTAL OPTION VALUE TO DECREASE AS TIME PASSES, AND IT HAS. AS FOR THE MARGIN REQUIREMENT; OBVIOUSLY WE ARE ONLY CONCERNED ABOUT THE MAINTENANCE MARGIN, SINCE I WILL NOT BE PLACING ANY ADDITIONAL TRADES. AS THE TOTAL OPTION VALUE DECREASES, I EXPECT MAINTENANCE MARGIN TO DECREASE AS WELL--AND IT HAS. I KEEP A GREAT DEAL OF RESERVE CASH IN MY ACCOUNT, SO GETTING A MARGIN CALL IS EXTREMELY UNLIKELY. IN ADDITION, MY STOP LOSS IS 50-60% AND WILL PROBABLY DECREASE EACH WEEK AS WE MOVE CLOSER TO EXPIRATION; SO IF THE TOTAL PREMIUM REACHES 110-115, I WILL EXIT THE TRADE (THIS WOULD REPRESENT A $2,400 LOSS VERSUS AN EXPECTED $1800.00 GAIN). FOR THIS TO HAPPEN, THE MARKET NEEDS TO MOVE ABOUT 110 POINTS IN ONE DIRECTION BEFORE I HAVE TO WORRY. ONE OF THE LEGS WILL BE WORTH NOTHING AND THE OTHER WILL HAVE MOSTLY INTRINSIC VALUE LEFT. BASED ON THE RAW DATA, I AM REALLY NOT CONCERNED. HISTORICALLY, SHORT STRADDLES WORK BEST IN HIGH VOLATILITY SITUATIONS, SO THIS IS THE IDEAL ENVIRONMENT.
I am assuming that you understand my latter point, but if I am not clear pls let me know.
HOPE THIS INFO HELPS.
Thanks for the good work and for sharing it.