Is the data used by P123 reasonably accurate?

[yuvaltaylor]

there are a lot of stocks for which we don’t have spread data. So if a stock has a spread of 0, that doesn’t mean it’s easy to trade! To protect myself against this, I actually use this formula: 100*eval(loopmedian(“spread(ctr)”,35)=0,na,loopmedian(“spread(ctr)/close(ctr)”,35))

Yuval, are you using this in a rank or in a screen? If the later, what range are you setting it to?

I use it in combination with MedianDailyTot to screen out extremely illiquid stocks.

A few stocks with a spread to price of over 4% still pass. But not many. And none with a spread to price of 5% or more.