We are preparing to short July platinum sometime next week.
We'll hold the trade through mid-June, and risk 3% from the entry price (currently about $1,200 per contract).
Platinum margin is currently just under $5,000 per contract.
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Monte Carlo analysis shows us that the expected win is more than twice the standard deviation of the average trade. This also shows that we can expect, on average, a winning trade between 1.48% and 3.24% on a $100k account. The current market prices suggest a move in the platinum futures between $30 and $65 or, 3.7% to 8%.