The Platinum price opened 1999 at 363.80 USD and closed at 430.20 USD, a change of +18.3%. It averaged 373.77 USD, with a high of 431.30 USD on December 29, 1999 and a low of 343.30 USD on June 21, 1999.
| Month | Average | High | Low | Close | Change |
|---|---|---|---|---|---|
| January | 354.23 | 364.10 | 344.10 | 346.90 | −4.6% |
| February | 367.41 | 384.10 | 349.60 | 381.70 | +10.0% |
| March | 370.50 | 380.10 | 358.00 | 359.10 | −5.9% |
| April | 357.79 | 365.30 | 350.70 | 354.50 | −1.3% |
| May | 357.28 | 365.60 | 348.20 | 365.40 | +3.1% |
| June | 356.71 | 368.50 | 343.30 | 351.00 | −3.9% |
| July | 351.18 | 362.00 | 344.00 | 344.00 | −2.0% |
| August | 350.47 | 356.00 | 344.70 | 350.40 | +1.9% |
| September | 371.98 | 407.80 | 348.00 | 388.90 | +11.0% |
| October | 415.33 | 430.10 | 395.30 | 401.20 | +3.2% |
| November | 412.28 | 429.30 | 400.30 | 418.80 | +4.4% |
| December | 420.85 | 431.30 | 411.70 | 430.20 | +2.7% |
The Platinum price opened 1999 at 363.80 USD and closed at 430.20 USD, a change of +18.3%. It averaged 373.77 USD, with a high of 431.30 USD on December 29, 1999 and a low of 343.30 USD on June 21, 1999.
The highest daily close in 1999 was 431.30 USD on December 29, 1999; the lowest was 343.30 USD on June 21, 1999.