Did the overnight limit change?

It's really significantly different, not just 2 or 3 ticks.

I don't know the reason but it's probably this:

Determining Settlement Prices on Specific Markets
Typically, the settlement price is set by determining the weighted average price over a certain period of trading, typically shortly before the close of the market. On the Chicago Mercantile Exchange, the settlement prices of certain equity futures were determined by a volume-weighted average of pit trading activity in the 30 seconds between 3:14:30 p.m. and 3:15:00 p.m. CDT. Beginning in December of 2014, the time was shifted to 12:59:30 p.m. and 1:00:00 p.m. CDT, respectively, maintaining the previous 30-second window but basing it on a different time period.
https://www.investopedia.com/terms/s/settlementprice.asp
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Wow, following the links, ending up here:
https://www.cmegroup.com/trading/price-limits.html#equityIndex
this is what I come up with:
upload_2020-3-18_1-45-40.png


Who knew there were so many dense tables of normally irrelevant information? :-)


TooEffingOld said:
I think it has something to do with the actual reference price being a calculation, not simply the last trade, something about the last 30 seconds and VWAP:
https://www.cmegroup.com/trading/equity-index/faq-sp-500-price-limits.html
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I detected this Sunday night and brought it up last night. I don't use graphs but somebody gave me the closing price at 3 pm central on the emini from last night and the 5% down from there didn't match up with 5% limit down. As long as the come gives a reference price you can follow in these crazy times. Its very important as if you trade after hrs you can get stuck. Based on were the spy is right now at 6;40 eastern it looks like the mini will open at 2350-2360 as the spy is right near its 52 low . All this can change by opening.
 
Limit down...if you want to see the actual drop watch the ETFs. Only way to see where the futures are as they are once again limit down and will be halted at the open
 
hafez50 said:
I detected this Sunday night and brought it up last night. I don't use graphs but somebody gave me the closing price at 3 pm central on the emini from last night and the 5% down from there didn't match up with 5% limit down. As long as the come gives a reference price you can follow in these crazy times. Its very important as if you trade after hrs you can get stuck. Based on were the spy is right now at 6;40 eastern it looks like the mini will open at 2350-2360 as the spy is right near its 52 low . All this can change by opening.
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2350 then 2150 support ...will break 2000!!!!

I'm surprised the s$p.is still above 2000
 
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