Two stock scenario:
A: predict +1% over mkt, long $50,
B: predict -1% below mkt, short $50,
then
若大盤沒漲也沒跌
則
Two stock CAPM math:
若則純
套利纱扭。
How to allocate A and B?
Find and
so that mkt risk is minimized.
聯(lián)立方程解出
CAPM for hedge funds summary
Assuming:
- Information >>
CAPM enables:
- minimize mkt risk,
-
, long-short