> Is the probabilty calculator sound? It seems a bit simplistic to me to just bung in a couple of prices and an annual volatility figure and get a handy percentage. I guess if volatilty suddenly changes while the trade is open one has to recalculate the probabilites, indeed best of all would be to continually recalculate say every day and adjust the strategy as necessary. Perhaps this is where implied volatility comes in.
> Where can I find up to date information on annual volatility figures?
> Are credit spreads affected much by sudden changes in volatility? Simplistically I would have thought not much since one holds a matched opposite postion thus both legs will be affected nearly equally. Though of course the probabilty of certain price moves will change.
> Would a professional option trader have taken this trade?
I suspect not as the breakeven point is dangerously close to the current price.
Also 60 days is probably too long for comfort.
However the potential payoff as a ROC % is large to account for this. This is, if I'm honest a punt.
Future Volatility must be estimated, guessed, by the trader.
As volatility cones, and there are GARCH & ARCH studies that demonstrate this mathematically, historical volatility is a good place to start.
If the current price of the Option [Inplied volatility] is far above or below the historical, this is the starting place for a strategy.
Credit spreads are hugely effected by volatility [as are all Option trades]
Selling low IV is fundamentally the wrong position to assume.
You buy low, sell high........the mantra of the market.
Should you wish to exit prior to expiration, you may have the direction correct, but still make a loss if you were to exit, as IV has exploded in "anticipation" of an event in the future.
On yesterdays pricing, your trade carried;
*IV of 12%
*HV = 11.06
*Volatility margin = 0.94%
As a premium for selling, this is quite slim.
As your trade is *seemingly* directional, you are willing to risk circa $1500.00, then;
Buy 10 Puts Strike $125 Expiry March 2007 @ $1700 and this equals your maximum loss.
Profit potential is greater than $610 [substantially]
Probabilities;
Target #1 = $123..........Target #2 =$120
IV = 12%
HV = 11.06%
Fair Value = $1.90
European expiry
ITM = 45.5%
Worthless = 54.5%
Probability Price > $123.00 = 68.2%
Probability Price between $123 & $120 = 16.5%
Probability Price < $120.00 = 15.3%
If, we have a correction, IV could jump to circa 16%+ [the higher range of DIA IV]
This would positively affect the value of your PUT in addition to any *directional* influence
Say on 20 February IV jumps, your theoretical value might be circa $1.96, with ZERO change in Price, simply a jump in IV, add in a drop in price of say $1.00 and the value jumps to $2.45
You can show a profit in two separate scenario's.
jog on
d998