请问credit spreads are flat 这个怎么翻译，谢谢

eff is an arbitrage trader, and he wants to calculate the implied dividend yield on a stock while looking at the over-the-counter price of a 5-year put and call (both European-style) on that same stock. He has the following data: *Initial stock price = USD 85 *Strike price = USD 90 *Continuous risk-free rate = 5% *Underlying stock volatility = unknown *Call price = USD 10 *Put price = USD 15 What is the continuous implied dividend yield of that stock? A 7.71% B 5.34% C 4.69% D 2.48% 为什么实在85上折现，不用90

老师 C阶乘 金融计算器怎么按？

对callable bond，如果是发行方，他的var会变小吧，对持有人来说var才变大。。是不是这样的呀老师

请问，P0的值是102.88如何算出？

老师 这个解释里说risk appetite就是risk tolerance ，是这样吗？

一般复利和连续复利的关系及转化

Stop-limit order 不是很理解意思？

市价委托和限价委托感觉没有什么明显的区别呀？

请问这道题怎么查表？我知道查正态分布的表，但是老师说的分位点是在表中的哪个部分？