有,你可以睇返Shum, P., Hejazi, W., Haryanto, E., & Rodier, A. (2015). Intraday Share Price Volatility and Leveraged ETF Rebalancing. Review of Finance, 20(6), 2379–2409. https://sci-hub.se/https://doi.org/10.1093/rof/rfv061
Microsoft to buy Activision Blizzard for $68.7 billion
Jan 18 (Reuters) - Microsoft Corp (MSFT.O) said on Tuesday it would buy videogame publisher Activision Blizzard (ATVI.O) for $68.7 billion in cash, the largest deal in the sector.
Microsoft's offer of $95 per share is at a premium of 45% to Activision's Friday close. Shares of Activision were up nearly 38% to $65.39 before being halted for news.