- ago
Hello,
This may be an issue that anything connecting to TDA experiences, but I'm letting you know in case you'd like to know.

I've noticed that my auto sell orders have sometimes executed a penny off from what I expected. Not a big deal, but I called Ameritrade anyway. While speaking with them I realized that WL's history was off by a penny. It whowed up since I trade gap fills.

Today it was PLUG: WL shows it in the chart as closing yesterday at 4.34 while it was actually 4.35 at TDA, YAHOO, etc.

I refreshed everything in the DM, and turned on Stream in the chart, but it made no difference.

Again, not a big deal, but thought you'd like to know.
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Cone8
 ( 6.32% )
- ago
#1
The official (settled) close was 4.345.
Since PLUG isn't a Wealth-Data symbol, I can only guess that you're looking at Q-Data?

Copy the chart prices to the clipboard, paste them somewhere and look at the value in full precision. What's the price?
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- ago
#2
I was looking at what TOS shows as well as YAHOO Finance.
Yes, I see the 4.345 from the chart data.
I assume that it's a rounding thing, although .345 should round up to .35
Perhaps WL rounds down for a better chance of a fill.
All OK, either way. Thanks!
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Cone8
 ( 6.32% )
- ago
#3
"should round to"?
Look up Banker's rounding and IEEE 754.

I don't really think we're applying that, but it might have something more to do with the way we're treating the 0.01 tick value.
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