"Wealth management equity/bond rebalance flows are massive and, due to their size, may not be fully dispersed when performance differences (and therefore rebalance trades) are very large.
We might get paid for buying what they're selling around month-end"
"Institutional yield enhancement programs are massive and tend to be info-insensitive sellers of volatility on an up-tick in vol.
This may keep IVs depressed in the short-term, leading to trend effects in IV on significant bad news, which we could profitably trend-follow"
Your pitch should include:
1. what would cause the inefficiency 2. why it wouldn't be fully dispersed by others who are quicker/better informed 3. a simple robust way to trade it
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When we talk about something being "stationary" we mean that the observations look like they could be drawn from the same "bag of observations" (distribution), regardless of what time we choose to look at.
If you have some kind of factor that you think predicts future stock returns (or similar) and you are making charts like below, then here are some tips...
We'll go through an example of trying to "time" SPX with the level of VIX.