| Period | AMPG | S&P 500 | NASDAQ | vs S&P |
|---|---|---|---|---|
| 1D | -6.55% | +0.70% | +1.16% | -7.25% |
| 5D | +5.27% | +0.63% | +1.55% | +4.65% |
| 1M | -9.38% | +3.06% | +2.00% | -12.44% |
| 3M | +61.89% | +5.31% | +3.71% | +56.58% |
| 6M | +125.19% | +13.92% | +21.75% | +111.27% |
| YTD | +82.62% | +13.86% | +19.40% | +68.76% |
| 1Y | +68.73% | +20.61% | +26.24% | +48.12% |
| 3Y | +204.06% | +75.64% | +99.79% | +128.42% |
| 5Y | +68.73% | +74.03% | +98.40% | -5.30% |