Returns
| Series | 1 week | 1 month | 3 months | 6 months | YTD | 1 year | 3 years (ann.) | 5 years (ann.) | 10 years (ann.) | Since inception (ann.) |
|---|---|---|---|---|---|---|---|---|---|---|
| Market-price return | -4.00% | +3.73% | +3.29% | +18.56% | +45.01% | +48.19% | +25.11% | +9.42% | +11.60% | +5.98% |
| Market-price total return | -4.00% | +3.73% | +4.19% | +20.72% | +49.40% | +58.43% | +37.62% | +20.62% | +22.89% | +17.11% |
| NAV return | -1.60% | +5.49% | +5.70% | +26.36% | +53.97% | +54.17% | +29.84% | +11.96% | +12.79% | +6.85% |
| NAV total return | -1.60% | +5.49% | +6.56% | +28.56% | +58.41% | +64.35% | +42.93% | +23.78% | +24.59% | +18.30% |
Performance through Oct 14, 2026. Price and NAV returns are simple changes; total returns reinvest each distribution at the series value on its ex-date (first observation on/after). Periods of one year or less are cumulative; longer periods are annualised. Series are built from unadjusted prices plus the distribution record so no distribution is counted twice. Corporate actions: the vendor price series is split-adjusted; rights offerings and mergers are not restated — check Corporate Actions.
Growth of $10,000, five years
Risk statistics
| Statistic | Market price | NAV | Specification |
|---|---|---|---|
| Volatility, 1 year | 0.30% | 0.35% | annualised SD of daily total returns, √252 |
| Volatility, 3 years | 0.25% | 0.28% | as above |
| Volatility, 5 years | 0.26% | 0.27% | as above |
| Maximum drawdown, 3 years | -26.59% | -28.61% | peak-to-trough on the total-return index |
| Sharpe ratio, 3 years | 1.22 | 1.30 | excess over FRED DGS3MO (window average) (avg 4.52%), annualised |
| Sortino ratio, 3 years | 1.79 | 1.92 | downside deviation of excess returns |
| Beta vs. benchmark proxy, 3 years | 1.27 | — | SPY (U.S. equity ETF proxy), daily, aligned dates |
| Correlation, 3 years | 0.78 | — | as above |
| Observations (3y) | 751 | — | minimum 60; rankings require 500 |
Market-price and NAV volatility are different quantities and are never mixed. NAV volatility for funds holding stale-marked or illiquid assets can understate economic risk.
CEF Explorer research page for Columbia Seligman Premium Technology Growth Fund, Inc.. Figures carry their own dates and sources; a discount to NAV does not guarantee convergence or any return. This is not investment advice.