[R-SIG-Finance] Redenominate function in FinancialInstrument

[varcovar]

Hi guys, 

The last row in redenominate() function in the FinancialInstrument package
is: 

buildRatio(c(symbol, rsym), env = tmpenv, silent = TRUE)/mult

Why does it divide by the multiplier? I'd rather multiply it to get the
notional amount of the contract expressed in the other currency. 

Let's say I'm trying to redenominate the NIY (Nikkei 225 Futures in JPY) in
USD: 

2004-03-10: USDJPY.Close = 110.8
2004-03-10: NIY.Close = 10365
Multiplier = 500

The new USD notional amount of the contract should be: 
NI.USD = (10365 / 110.8) * 500 = 46773.47 USD

Instead, using redenominate() I get: 
NI.USD = (10365 / 110.8) / 500 = 0.1870939 USD

So my suggestion is to replace "buildRatio(c(symbol, rsym), env = tmpenv,
silent = TRUE)/mult" by 
"buildRatio(c(symbol, rsym), env = tmpenv, silent = TRUE) * mult"

Am I right, or...? 

Thanks! 

Markus Douglas, Jr.




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