Winning ways can become losing ways:
Years ago using limit orders resting in the NYSE market often was a good thing, especially with the price improvement when a specialist traded through the order as he had to include you in his fill.
Some traders, like pair traders, actually spent the day sending (and cancelling orders if the price drifted too close rather than gapping through) limit orders that rested in the market. They would especially do this looking to short.
Now.. most of the time placing limit orders resting in the market is usually bad
A. No price improvement as when stocks traded in fractions
B. More importantly, algos let you get filled when the price is likely to go against you and stop your fill by fraction-of-a- penny jumping in front of you if you fill figures to immediately be a good one
-most of the time if you are filled the price quickly moves against you.
_____
What other good trading ideas from the past now are actually mostly bad?
... like maybe scalping.
Years ago using limit orders resting in the NYSE market often was a good thing, especially with the price improvement when a specialist traded through the order as he had to include you in his fill.
Some traders, like pair traders, actually spent the day sending (and cancelling orders if the price drifted too close rather than gapping through) limit orders that rested in the market. They would especially do this looking to short.
Now.. most of the time placing limit orders resting in the market is usually bad
A. No price improvement as when stocks traded in fractions
B. More importantly, algos let you get filled when the price is likely to go against you and stop your fill by fraction-of-a- penny jumping in front of you if you fill figures to immediately be a good one
-most of the time if you are filled the price quickly moves against you.
_____
What other good trading ideas from the past now are actually mostly bad?
... like maybe scalping.
)