A Non-Random Straight-Line Walk Up Wall Street
Malkiel would be shocked...
As we noted previously, one of the bedrock notions in modern finance is the “Random Walk Hypothesis”, which essentially says that every day is a new one. Markets are like Buddhist monks in this paradigm, waking up with nothing and taking their begging bowl into the streets to see what fate brings. If markets are up 5 days in a row, the sixth day may be up or down in line with long term trends. And long term here means the life span of a Galapagos Island tortoise.