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My advice: Your new trading zen: Reality: Your accountant's reaction when your remaining liquidity hits 0.2 (R.I.P. Flounder Stephen Furst, Born: May 8, 1954, Died: June 16, 2017)

Haven't seen anything out of the ordinary. Try a [ctrl]-[alt]-[f] ??

Seen it.

Opening salvo: i: Historic norm of 15-20 vol has been squeezed down to ≤10 over the past two years, making selling options "tough" (to be polite). ii: I have yet to meet someone in the flesh who pays the mortgage by buying options. 1) Yes. Trained monkeys can trade options (and play piano, and...

Worth repeating...

Yeah: not well-written on my part: "and then, vol ("vega") at the arithmetic inverse of the delta -- for a 0.25% delta rise, I use a -0.25% vega fall." "delta" is so-called portfolio delta, such that, given a $1 move in underlying (SPX), portfolio value changes by [$1*Pdelta]. "vega" is...

Google is your friend.

"Jaws" -- you confuse trading in correlated assets with pairs trading. You also confuse a precedent condition with the circular tautology. No biggie.

Googling "delta gamma approximation" will bring up a number of great resources, but I just found this one: https://www.cognizant.com/whitepapers/VaR-Approximation-Methods.pdf which contains a delta-gamma-theta approximation, too. For myself, I run an "overnight portfolio risk" set-up...

Attached are two studies from yesterday's closing SPX options, in volume and open interest. Check out, in particular, SEP29 -- fully 20% of the PUT open interest was created yesterday -- and by recollection, I can tell you that 80% of that was done before the Trump/Democrat Harvey/Debt_Limit...

"Pairs" do not go wrong. Pairs trading is Reversion-to-Mean trading -- it observes a history of consistent behavior and keys off of working an observed inconsistency to trigger an entry. You can't have a recovery to historic behavior -- a reversion to mean -- without having, first, an...

Two thoughts: 1) Generally, "Investopedia" oversimplifies things to an inaccurate and harmful degree. But the piece you cited is about all you need to know about open interest. To look for more is to look for trouble. If you make a mountain out of a molehill, you're going to miss the mole. 2)...

My OJ (just "OJ" to populate Quote Monitor page) is/has been fine, for the last hour, including Nov09 FOPs. (FWIW and all that.) {follow-up} More "FWIW": I have seen the Not Executing stuff even in the ES, if the market gets stingy enough. Right now? With Irma hitching up her skirt and looking...

I would have an issue with having that much visual real estate on a single monitor -- if the monitor/video card section went south, there'd be no more screen. Any way to get that into a more modular form? ("Oh yeahhhhhh!") So over the past 6 months, my 8yo VGA monitor has gone from perfect to...

Wow. 12 noon the NWS updated on Irma, and in the next 15 minutes, the SPX dropped from -10 pts to -23pts, and is now down -30pts. Equal drops across the NDX and DJIA and RUT. Not so curiously, the TRIN has climbed, but remains buy-volume-weighted at 0.78. The seal on the deal? The DAX and...

±0.25% is dreamy. ±0.5% is probably mode. ±1.0% is edge of comfort. ±2.0% is all too common. ≥3.0% finds me changing laundry.

On behalf of myself and my bank account, I thank you for trading.

Your interpretation is right on, Jack, and coupled with TRIN, gives a fine view into (instantaneous) market breadth -- and concomitant future turns/direction. It's both sad and hilarious, that because TICK and TRIN were among the first "technical indicators" that they get ignored and even...

Or to put it differently, price is very much dependent on volume. Traders ("Retail") routinely forget/misquote/mistake that, at their peril.

One of the cruelest jokes pulled on retail traders is the concept of a market driven by prior "patterns". If you had a position in the market that you wished to enter or exit, right now, would you give a rat's ass about the prior pattern? No. Now multiply that resolute need for execution by...