多晶硅主力合约短线拉升，现涨0.42%

Group 1 - The core point of the article is that the main contract for polysilicon experienced a short-term surge, reversing a previous decline, with a current increase of 0.42% after having dropped over 3% earlier in the day [1] Group 2 - The article highlights the volatility in the polysilicon market, indicating significant price fluctuations within a single trading day [1] - The context of the price movement suggests ongoing market dynamics that could impact future trading strategies and investment decisions in the polysilicon sector [1]