Highest so far that month
No earlier session that month closed above this level.
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This page is a historical record of the silver price in 21 May 2008, not the current price.See today's silver price (11 September 2026)
Highest closing price since 17 April 2008
Silver closed at $18.00 per troy ounce on 21 May 2008, up $0.327 (1.85%) from the previous close of $17.67.
This close extended a run of 5 consecutive sessions of gains. Runs are more informative than any one day inside them: they show direction holding rather than a single session's noise.
No earlier session that month closed above this level.
This close sat 12.99% below the highest silver close recorded up to that date, set on 2008-03-05.
Twelve months earlier silver traded around $13.06, making this a +37.84% move year on year.
Figures in this section are shown in USD, independent of the currency selected above.
Silver closed at $18.00 per troy ounce on 21 May 2008. That is $0.33 higher than the previous close of $17.67, a move of 1.85%.
The silver price rose on 21 May 2008, gaining $0.33 (1.85%) against the previous session's close of $17.67.
At $18.00 per troy ounce, one gram of pure silver was worth about $0.58 on 21 May 2008. A troy ounce is 31.1034768 grams.
The gold-to-silver ratio closed at about 51.6 on 21 May 2008, meaning one ounce of gold was worth roughly 51.6 ounces of silver.
A week before 21 May 2008, silver was around $16.55 per troy ounce, so the close of $18.00 is a gain of 8.7% over the week.
A year before 21 May 2008, silver was around $13.06 per troy ounce. The close of $18.00 therefore represents a rise of 37.8% over twelve months.
This close was session 5 of a consecutive run of gains. A run is counted by closes, so an intraday reversal that still closed in the same direction does not break it.
It closed 12.99% below the highest close on record up to that date, which was set on 2008-03-05.