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I was checking oracle stock on google finance and it is down about 50% in after hours trading. Is after hours trading this volatile? Oracle isn't the only stock to go down 50% after hours. Is someone goosing this price or is it a mistake? http://www.google.com/finance?q=orcl

You are most likely right about free lunches. I just redid the math and the "free" money ranges from .05 to .07. The spread and commissions will kill that easily. It's funny. I didn't realize dmo has shared his sears story many times. Luckily I was skeptical and felt it was too good to be true...

Ouch. 35 percent? So why not just do a Box arbitrage instead of a reversal with short stock?

Well, if you are trying to day trade options and compete with the market makers, I wish you luck. McMillan recommends in the money options for day trading.

There is quite a difference between the put and call prices for Sears options. Look at the 55 and 60 strikes for May. Unless I am missing something that is a free 0.50 for those quick enough. I'm not sure how much it would cost to borrow stock for shorting, but if I were to buy a straddle for...

I was afraid of this answer. I don't have extensive experience with programming yet and was looking for a shortcut until I can get a handle with R. Jeff Augen's book is called "The volatility edge in options trading". Standard deviation anaylsis is basically like price analysis in stocks --you...

It seems difficult to find software that charts standard deviation according to options pricing theory. Volatility measured by Bollinger Bands is different due to the log of standard deviation. Jeff Augen's book proves that the difference is significant. Anyone knows of such software that lets...

Yes, I am wondering about that estimate myself. I didn't even realize that you don't need to be a market maker to do transactions directly with them... Not sure what you mean by past deadline. You mean when the market closes?

Well, your employment status will affect your approval for margin. This is important because most of the time, you need a margin account for using certain strategies like spreads. Say you bet all the money in your account with a short call spread. Then say it went up ten basis points and you are...

Well, I didn't mean complete acquisition. I meant controlling stake. The article I read indicated that 75 percent of the shares is usually needed to control a company in Germany. I don't know what is the required percentage in the US, but it would be difficult to obtain controlling power...

Well people still can't stop talking about Porsche and the VW short squeeze. However, I am wondering if it is legal in the US to secretly acquire a controlling stake in a company by slowly trading options. It seems like this is a cheaper alternative to the aggressive hostile takeover, but this...

Lord... Marvel and Gamestop for long term? This is just as speculative as Cramer... Besides, Cramer recommends many conservative stocks just as well. Long term investing isn't as low risk as people like him make it out to be. I don't understand how he can praise Jon Stewart when Jon was...

So what is the latest news? Dagnabit! TOS allows margin trading in an IRA!? I was thinking of transfering my IRA account to TOS, but oh well. If they treat TOS IRA accounts the same way, you can forget about any kind of margin. Ameritrade doesn't allow margin trading in an IRA. You can't write...

Wow... then I doubt Think or Swim provides any better fills than eOption... So I guess some of those cranky reviews about IB trading against them and bad fills from IB was just from stressed out traders wanting to blame something external. IB routes mostly directly to the exchanges. Have...

Well, I just compared a few 606 reports of other online brokers. Think or swim routes most of their orders through Citi. TD Ameritrade routes most of their option orders through the major option exhcanges. Since many people rave about TOS, I would think they provide decent fills. I don't know...

Well... I just read their 606 report. I'm not too well versed in order flows. Can you translate as to how the percentages deals with bad fills? It seems like a good chunk of the option orders are routed to citadel derivatives group. I think I am going to have to really read that book by Larry...

Well, I would be trading less than 70 contracts for quite a while, but at 6 or more contracts per leg, this would actually turn out to be cheaper than IB.

www.eoption.com 3 bucks plus 0.10 per contract. Nice. I've been looking for a firm with cheap prices. I know IB is cheaper, but their notorious customer service scared me off. TOS is being bought out by TD ameritrade, but I have an IRA acount with them already and I have no idea what will...

I'm curious. It appears to me that your strategy is heavily based on predicting stock direction on earnings release. I presume this is mostly based on fundamental analysis? How often do you win versus losing? What is the ratio of hits versus misses?

You make an interesting argument. I'd like some references to this extensive research. Any links, articles, or books?