TDAmeritrade ThinkOrSwim also crashed in the SPX 20pt whiplash

Thanks Steve, yes, afterhours they are pretty consistent, but I also trade in Extended Hours.  Agreed, if I do not understand this discrepancy, maybe I should not trade extended overnight hours, but I also work fulltime. . . and overnight is having some of the biggest moves... so it is an important time period.   Any insights or knowledge from anybody on the Inverse EFTs in Extended Overnight hours?

SH vs SPY short - why so different?  From 7pmSunday to last night bottom SH was a 8.8% gain, but short SPY was only a 2% gain.  Why?  Does anybody know?  SH is not leveraged, it is supposed to be straight inverse.  Anybody have insights into this??  (it is very important to my strategy, and if I understand it better, maybe arbitrage opportunity for all of us)     

   [I do not mind a little inconsistency, but 4x different!]

   [I have one guess, in extended overnight hours, which these both trade, Shorting SPY is not allowed, so hence, in extended hours, it might be "restricted" on the downside....]

2pm CST Time Buyers - seems like every single day at exactly 2pmCST buyers come to SPY

SPX Hang on to your hats, this mini rally looks weak to me.  Can 3040 hold?

Whipsaw Fed Announcements, I am getting whiplash! : )

AMZN thru the roof..and such a big large cap to move that much

I forgot to flip my FAANG<>Russel switch back again last night : )

SONO - nice call, it popped. (and it is a really great product and company : )

Wow, I agree...Pandemic, recession, race riots, curfew, giant budget deficit, unemployment, bancruptcies, and ........   Cruise Lines are not even operating and up 25-30%, Airlines at 30% capacity and up 25%.

SPY SPX defense support is now 3100 line in the sand, instead of old 3000

Am I thinking wrong to place much higer value on setups that do not mirror or look like SPY, QQQ, DIA?   i.e. stuff that looks to be happening independent of "market".

yes goldnice, we know from your posts several times a day you are bullish on gold and silver.

WTF - down hard, up hard!!  ahhh

TRQ - Turquise Hill Resources been on nice upward bull channel.

Rotation swinging back to Big and FAANG, away from Small Russel IWM

SPY SPX, so much for holding the 200MA and 3000

OK, Sure ,AMZN, APPL, MSFT maybe up not as much as S&P, but down??!!???  Market is always a puzzle.

Wow, SPX Small Fakout Up, then Big Fakeout UP, fooled me.

Is_"Filling-The-Gap"_Possibly_Obsolete for some ETFs?

What is the theory behind it.  I recall it being that there a a number of "left over" and "unfulfilled" buyers and sellers orders "in the gap" that did not get filled, since it did not trade all night.  So, seems still valid for most stocks.  But for SPY, for example, it trades 24x5 (all night), so does the "fill the gap" still apply?   and... what is the theory behind it?   [we got a huge gap below to consider]  Thanks!