A backtest can look flawless and still be untradeable. I've watched rules with clean equity curves that assumed every signal filled at the closing print fall apart the moment real…
An index future ticks higher on a burst of buying. A beat later, the best offer on one of its larger constituents lifts by a couple of cents, and the…
A single market order can strip the visible book in a blink. Picture the best offer showing 4,000 shares, and then a buyer lifts 12,000 in one print. The top…
Watch a fast tape long enough and you'll see it: a stream of prints that keep lifting the offer, one after another, twenty or thirty in a row, and not…
Two fund fact sheets sit open on my screen. One reports portfolio turnover of 28 percent for the year. The other reports 165 percent. The instinct is to read the…