New instrument: can't understand

[NinjaTrader_Christian]

Hi !

We corrected the point value for SI (Comex Silver) and added instrument HG (Comex Copper). This will be available with the next update.

Thanks for telling us.

Kind regards,
Christian

[skynetman]

Should be one point=5000.

You are referring to cbot silver price that is given in dollar, so 5000 is right, but comex silver is given in cents if you trust what they write on their site.

Both comex and cbot contracts refer to 5000 troy ounces of silver and they are both in the 20.0-20.1 value. So nymex web site must be wrong about contract given in cents of dollar, right?
Else as the contract is in cents, shouldn't it be 50$ per 1point=1cent ?
Broker feed gives ALWAYS the values in $ or uses the contract standard price quotation unit?

Can you help me understandig this?
CME Live Cattle Futures Trade Unit 40,000 pounds
Point Descriptions 1 point = $.01 per hundred pounds = $4.00
Tick: 0.01 ?
Point value: 4?

[NinjaTrader_Dierk]

We'll check into. Thanks for making us aware of that.

[Jim_S]

Instrument manager has wrong point value for silver. Should be one point=5000. Tick=.001=$5. Check ZI, same instrument, different market, no volume. To change, highlight SI in instrument manager, >edit>change point value to 5000. I don't show copper at all in the instrument manager, so you would have to get the symbol from your data provider, usually HG, tick=.05=$12.50; point=250.

[skynetman]

I need to add comex Copper to instrument manager so i look at Comex Silver to understand how to set the values as it is already available, but i can't understand them:

From nymex: 
Trading unit: 5000 troy ounces
Price Quotation: US cents per troy ounce
Minimum price fluctuation: Price changes for outright transactions, including EFPs, are in multiples of one-half cent (0.5˘ or $0.005) per troy ounce, equivalent to $25.00 per contract. For straddle or spread transactions, as well as the determination of settlement prices, the price changes are registered in multiples of one-tenth of a cent (0.10˘ or $0.001) per troy ounce, equivalent to $5.00 per contract. 
A fluctuation of one cent (1˘ or $0.01) is equivalent to $50.00 per contract.

In ninjatrader the following is already set:
tick size: 0.005
Currency: USdollar
Point value: 5

I would have set instead:
tick size: 0.5
Currency: USDollar
point value: 50

If the price is given in cents from my broker (remember: Price Quotation: US cents per troy ounce) why i set a tick of 0.005 and not a tick of 0.5?
Why there is a point value of 5? If you use dollars 1 point=1 dollar= 5000$ per contract right? And if instead you are working with cents (as it should be) 1 point = 1cent = 50$ per contract. So where does 5 come from?

And then i have to set copper:

From nymex: 
Trading unit: 25,000 pounds
Price Quotation: U.S. cents per pound
Minimum price fluctuation: Price changes are registered in multiples of five one-hundredths of one cent (0.05˘ or $0.0005) per pound, equivalent to $12.50 per contract. A fluctuation of one cent (1˘ or $0.01) is equivalent to $250 per contract.

I would set:
tick size: 0.05
Currency: USDollar
Point value: 250

I have a broker with patsystem technology (if needed).
Any help?
thx