这个题目里的三个选项没有见过，分别是对应哪里的知识点？
能不能再讲一下三个选项。
问题如下图：
选项：
A. 
B. 
C. 
解释：
JSu · 2020年03月04日
这个题目里的三个选项没有见过，分别是对应哪里的知识点？
能不能再讲一下三个选项。
问题如下图：
选项：
A.
B.
C.
解释：
这么解释我能理解，就是原本如胶似漆的一对儿突然分道扬镳了“due to structral reason”所以我们要止损。 但是你既然选择做配对交易，不就应该提前就要通过proper identification ofthe pair（‘s property）来确定这次是闹小矛盾，还是结构性的矛盾么。。。我的意思是，stop-loss是在原本的估计出现失误的时候作出的补救，如果您是投资人，我和您说配对交易要经常止损，您是不是就要质疑我的能力不行了？
maggie_品职助教 · 2020年03月05日
嗨，努力学习的PZer你好：
做配对交易就是通过观测平时涨跌势基本一致的股票（高度相关），突然走势不一致了，就是因为他们相关，我们相信他们终归会回归价值，所以就买那个低估，卖那个高估的。这道题就是在考察我们如果本来相关的股票未来走势不再相关了，我们应该采取什么做法来及时止损，因此选B Stop-loss order。请见原版书的截图：
而选项C:限价订单多用于高频交易中识别非常短暂的定价不合理的机会，而这道题K同学预期均值回归的时间是数天至数周，所以C选项不对。请看原版书的截图：（这是一个非常偏的点，稍作了解即可）
此外，我看你报的是全线班啊，课后题的视频已经上线了，可以先去听一下。
-------------------------------虽然现在很辛苦，但努力过的感觉真的很好，加油！
NO.PZ2019012201000057 问题如下 Next, Leeter scribes theinvestment approaof the Kopernicus Fun Kopernicus makes extensive use ofmarket ta to support its primary focus—pairs trang between instry peers.Statistictechniques intify two securities thhave been highly correlateith eaother in the past. If the prirelationship between a pair verges,Kopernicus expects mereversion over a few ys or weeks anplaceslong–short positions accorngly to take aantage of the vergence. Whiriskmanagement methois the Kopernicus Funmost likely to use to offsetthe primary risk of its strategy? A.Proper intification of the pairs B.Frequent use of stop-loss orr rules C.Extensive analysis of the limit orr book The biggest risk in pairs trang is thatthe observeprivergenis not temporary ancoule to structuralreasons. Frequent use of stop-loss rules, whiare set to exit tras when aloss limit is reache aresses this risk. A is incorrect. Although properintification of the pairs to useis criticto the success of thisstatisticarbitrage strategy, the selection process alone es nothing toaress the risk thchanges in funmentals between the companies in the pairmoccur, thereextenng (or eliminating) priconvergence. C is incorrect. Using the limit orr bookto intify pairs pricing anomalies implies a very short time frame—brief afew millisecon—anfocuses onhigh-frequentrang. Kopernicus lets tras plout for ys or weeks;therefore, using the limit orr book will not help it. 请问老师，该知识点的出处是哪里。另外请问下，有没有相关的知识点。谢谢老师
NO.PZ2019012201000057问题如下 Next, Leeter scribes theinvestment approaof the Kopernicus Fun Kopernicus makes extensive use ofmarket ta to support its primary focus—pairs trang between instry peers.Statistictechniques intify two securities thhave been highly correlateith eaother in the past. If the prirelationship between a pair verges,Kopernicus expects mereversion over a few ys or weeks anplaceslong–short positions accorngly to take aantage of the vergence. Whiriskmanagement methois the Kopernicus Funmost likely to use to offsetthe primary risk of its strategy?A.Proper intification of the pairsB.Frequent use of stop-loss orr rulesC.Extensive analysis of the limit orr bookThe biggest risk in pairs trang is thatthe observeprivergenis not temporary ancoule to structuralreasons. Frequent use of stop-loss rules, whiare set to exit tras when aloss limit is reache aresses this risk. A is incorrect. Although properintification of the pairs to useis criticto the success of thisstatisticarbitrage strategy, the selection process alone es nothing toaress the risk thchanges in funmentals between the companies in the pairmoccur, thereextenng (or eliminating) priconvergence. C is incorrect. Using the limit orr bookto intify pairs pricing anomalies implies a very short time frame—brief afew millisecon—anfocuses onhigh-frequentrang. Kopernicus lets tras plout for ys or weeks;therefore, using the limit orr book will not help it. 我想请问一下这里核心是不是pair股价往相反方向发展，为了止损赶紧用stop loss市场价交易？limit orr可能成交不了。
NO.PZ2019012201000057 问题如下 Next, Leeter scribes theinvestment approaof the Kopernicus Fun Kopernicus makes extensive use ofmarket ta to support its primary focus—pairs trang between instry peers.Statistictechniques intify two securities thhave been highly correlateith eaother in the past. If the prirelationship between a pair verges,Kopernicus expects mereversion over a few ys or weeks anplaceslong–short positions accorngly to take aantage of the vergence. Whiriskmanagement methois the Kopernicus Funmost likely to use to offsetthe primary risk of its strategy? A.Proper intification of the pairs B.Frequent use of stop-loss orr rules C.Extensive analysis of the limit orr book The biggest risk in pairs trang is thatthe observeprivergenis not temporary ancoule to structuralreasons. Frequent use of stop-loss rules, whiare set to exit tras when aloss limit is reache aresses this risk. A is incorrect. Although properintification of the pairs to useis criticto the success of thisstatisticarbitrage strategy, the selection process alone es nothing toaress the risk thchanges in funmentals between the companies in the pairmoccur, thereextenng (or eliminating) priconvergence. C is incorrect. Using the limit orr bookto intify pairs pricing anomalies implies a very short time frame—brief afew millisecon—anfocuses onhigh-frequentrang. Kopernicus lets tras plout for ys or weeks;therefore, using the limit orr book will not help it. A is incorrect. Although proper intification of the pairs to useis criticto the success of this statisticarbitrage strategy, the selection process alone es nothing to aress the risk thchanges in funmentals between the companies in the pair moccur, thereextenng (or eliminating) priconvergence.“A不正确。虽然正确识别要使用的配对对这种统计套利策略的成功至关重要，但选择过程本身并不能解决公司间基本面变化的风险，这种变化可能导致价格趋同的延长（或消失）。” 似乎A有一定道理啊
NO.PZ2019012201000057 问题如下 Next, Leeter scribes theinvestment approaof the Kopernicus Fun Kopernicus makes extensive use ofmarket ta to support its primary focus—pairs trang between instry peers.Statistictechniques intify two securities thhave been highly correlateith eaother in the past. If the prirelationship between a pair verges,Kopernicus expects mereversion over a few ys or weeks anplaceslong–short positions accorngly to take aantage of the vergence. Whiriskmanagement methois the Kopernicus Funmost likely to use to offsetthe primary risk of its strategy? A.Proper intification of the pairs B.Frequent use of stop-loss orr rules C.Extensive analysis of the limit orr book The biggest risk in pairs trang is thatthe observeprivergenis not temporary ancoule to structuralreasons. Frequent use of stop-loss rules, whiare set to exit tras when aloss limit is reache aresses this risk. A is incorrect. Although properintification of the pairs to useis criticto the success of thisstatisticarbitrage strategy, the selection process alone es nothing toaress the risk thchanges in funmentals between the companies in the pairmoccur, thereextenng (or eliminating) priconvergence. C is incorrect. Using the limit orr bookto intify pairs pricing anomalies implies a very short time frame—brief afew millisecon—anfocuses onhigh-frequentrang. Kopernicus lets tras plout for ys or weeks;therefore, using the limit orr book will not help it. 可以详细一下B和C吗？为什么这个可以帮助offset pair trang风险啊？
NO.PZ2019012201000057 问题如下 Next, Leeter scribes theinvestment approaof the Kopernicus Fun Kopernicus makes extensive use ofmarket ta to support its primary focus—pairs trang between instry peers.Statistictechniques intify two securities thhave been highly correlateith eaother in the past. If the prirelationship between a pair verges,Kopernicus expects mereversion over a few ys or weeks anplaceslong–short positions accorngly to take aantage of the vergence. Whiriskmanagement methois the Kopernicus Funmost likely to use to offsetthe primary risk of its strategy? A.Proper intification of the pairs B.Frequent use of stop-loss orr rules C.Extensive analysis of the limit orr book The biggest risk in pairs trang is thatthe observeprivergenis not temporary ancoule to structuralreasons. Frequent use of stop-loss rules, whiare set to exit tras when aloss limit is reache aresses this risk. A is incorrect. Although properintification of the pairs to useis criticto the success of thisstatisticarbitrage strategy, the selection process alone es nothing toaress the risk thchanges in funmentals between the companies in the pairmoccur, thereextenng (or eliminating) priconvergence. C is incorrect. Using the limit orr bookto intify pairs pricing anomalies implies a very short time frame—brief afew millisecon—anfocuses onhigh-frequentrang. Kopernicus lets tras plout for ys or weeks;therefore, using the limit orr book will not help it. 如题