10. What is T price, C price, MTM P/L

T price is the price at which a stock was originally purchased.
 
C Price is the current last price that the stock was traded at.
 
MTM P/L is the calculation of the profit or loss an investor makes when holding shares and compares the original purchase price with the current (marked-to-market) price multiplied by the number of shares held. So the MTM P/L equals the C price less the T price multiplied by the number of shares held.
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