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Notice of Cost Price Adjustment
At the request of users, we have updated the formula for calculating the cost price. If you frequently trade stocks, your cost price may undergo slight adjustments.
For example, suppose you execute the following trades for SAUDI ARAMCO:
- Buy 100 shares at $5
- Sell 10 shares at $7
- Buy 100 shares at $6
After these transactions, your current holdings will be 190 shares, and suppose the stock trading fee is 1% of the transaction amount. Your order details are as follows:
Action | Quantity | Net Amount | Fees |
|---|---|---|---|
Buy | 100 | $500 | $5 |
Sell | 10 | $70 | $0.7 |
Buy | 100 | $600 | $6 |
The following are the final cost prices based on different formulas:
| Avg. Cost | Avg. Price |
|---|---|---|
Old | (500+5+600+6)/(100+100)= $5.56 | (500+600)/(100+100)= $5.50 |
New | { (500+5) - 10* (500+5)/100 + (600+6) } / (100-10+100) = $5.58 | ( 500- 10* 500/100 + 600 ) / (100-10+100) = $5.53 |
* The cost price has been rounded to two decimal places.
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