there are edges at all timeframes

market is fractal. which timeframe one operates on depends on his/her

1. risk tolerance;

2. commission cost structure;

3. how hard you want to work.

there are HFT firms that do not hold for more than a few seconds. many of those firms rarely have a losing day. i have different positions open at all time, some for 15-60 minutes, some at daily frequency, and others are swings that can last 2-4 weeks.

just my 2c.

所有跟帖： 

• 对头！不过你的短线做法很难populate.我曾经看过许多做日交易的人写的书，很刺激。 -HIchinese - ♂ (57 bytes) () 04/02/2013 postreply 20:50:10