krahsloop
Member
Hi, I am looking for custom watchlist code that will track percent change from the day's closing price, basically from 4:00pm EST (the closing bell) until the rest of that calendar/after hours trading day. It would function the same way as the Percent Change from Open custom watchlist column referenced below (assembled from this thread: https://usethinkscript.com/threads/sorting-custom-watch-list-column.6181/#post-80479), but with the day's closing price as the start/0%. I tried to modify it , but switching out all the "ChangefromOpen" to "ChangefromClose" did not work at all.
Here is that Percent Change from Open study for reference, don't know if some lines or elements could be modified to create what I'm trying for.
Alternatively/additionally, here is code that scans for after hours percent change, not sure if it could be converted to a live watchlist as described above:
Many thanks to the community!
Here is that Percent Change from Open study for reference, don't know if some lines or elements could be modified to create what I'm trying for.
Ruby:
# change percent number , x100 , round to 2 digits
def show_negative_sign = yes;
def ChangefromOpen = round(100 * (close / open - 1), 2);
AddLabel(yes,
(if show_negative_sign and ChangefromOpen < 0 then "-" else "") +
(if (ChangefromOpen < 1 and ChangefromOpen > 0) then "0" else "") +
absvalue( ChangefromOpen) + "%",
(if ChangefromOpen > 0 then color.GREEN else if ChangefromOpen < 0 then color.RED else color.WHITE));
#
Alternatively/additionally, here is code that scans for after hours percent change, not sure if it could be converted to a live watchlist as described above:
Ruby:
#Wizard text: The
#Wizard input: price
#Wizard text: has moved
#Wizard input: operator
#Wizard input: percent_change
#Wizard text: % in after hours trading
input closing_time = 1559;
input open_time = 0930;
input price = close;
input operator = {default "greater than","less than"};
input percent_change = 1.00;
def time_until_close = SecondsTillTime(closing_time);
def time_until_open = SecondsTillTime(open_time);
def closing_bell = time_until_close == 0;
rec closing_price = CompoundValue(1, if closing_bell then price else closing_price[1], price);
def after_closing_bell = time_until_close <= 0;
def before_opening_bell = time_until_open >= 0 ;
def afterhours_percent_change = 100 * (price / closing_price - 1);
def meet_scan_criteria;
switch (operator) {
case "greater than":
meet_scan_criteria = afterhours_percent_change >= percent_change;
case "less than":
meet_scan_criteria = afterhours_percent_change <= percent_change;
}
plot scan = (after_closing_bell or before_opening_bell) AND meet_scan_criteria;
Many thanks to the community!
Last edited: