SPDR S&P 500 (SPY)

[imiloa]

in general, VXX and SPY do move inversely.
and when they don't, you can glean hints from that as well.

this is evident in the math at the link i provided.
and also in the daily chart motion.

if you haven't noticed this,
then maybe you haven't watching the actual charts overlaid intraday?

regardless, you are welcome to spout whatever perception you have of this.
just know that many of us here have been using this approach for a long time
and, empirically, it's helped us time entry/exits pretty well.

your mileage is welcome to vary.

re: "SPY has no insiders"
if you are inferring "insiders" as "corporate insiders"
then you are either also missing the point
or simply being argumentative.

SPY is an ETF following an index, not a company.
so, of course, i didn't mean corporate insiders.

i clearly meant "wall street insiders."
SPY trades many billions of US dollar volume every day.
if you don't think the wall street titans craft their skimming of that trading volume,
then maybe you also believe
there were WMD in iraq?