Don, what about extrapolating from NYSE to the other markets?Originally posted by Don Bright there can be very little tape reading on the naz
I *don't* mean, "If shorting represents 2% of today's QQQ volume at NYSE, then the percentage is probably 2% today on NASDAQ, AMEX, etc."
I mean, "If today's NYSE-QQQ shorting is 17% greater than its daily average, then a similar increase is probably happening today on NASDAQ, AMEX, etc."
For high-volume/liquidity issues -- where the sampling-size isn't too small to be statistically reliable -- and excluding occasional anomalies such as J**us behaving foolishly,
can you describe any particular reasons why day-over-day variations at NYSE wouldn't be mirrored elsewhere?
Thanks.
P.S. -- oops, using an ETF was a bad example. Pretend I said "XYZ" instead.
D )