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Strategies & Market Trends : Jim's Nasdaq100 Special as a basket. -- Ignore unavailable to you. Want to Upgrade?

To: Matthew L. Jones who wrote (1360)	10/17/1999 2:15:00 PM
From: jjs_ynot	Read Replies (1) \| Respond to of 2103

Matt, I know several Market Makers on the Philly Exchange. They work hard to be delta-neutral and gamma-positive (price movement insensitive) using a combination of options and stocks. Most deal in one or two stocks. However, as the time premium decays they often have to readjust. This adjustment may account for some of the price movements approaching expiration. Also, hedge funds, mutual funds, retirement funds and various other commercials are often in the option market and not neutrally weighted. The MMs make money (at least in theory) on the bid/ask spread. Dave

To: Matthew L. Jones who wrote (1360)	10/17/1999 3:21:00 PM
From: OX	Read Replies (1) \| Respond to of 2103

>You are a number crunching animal! Hi Matt... I'll have to bestow that moniker onto you... I saw some of the NDX stat work you've done... I just like to write software (and options ;-) >running option chains and sorting by... it's a little more complex than that, but not overly so. >assign the proper weighting to the options? I just took the current NDX weightings for that day and applied them to the maxpain numbers... simple as that... that's why taking only 10 stocks is a little trickier cause the composite number won't come close enough to the full NDX unless you weight the 10 differently... so I'll let someone else do the hard part... the programming is the easy part. I just looked, the top 10 NDX stocks are about 50% of the total. IMHO, I don't think the NDX/QQQ options have enough open interest to be of significance. So in my view, MP for NDX/QQQ is a follower, not a leader. also, I'll concur w/ dave_s' msg #1360... while MM's can probably manipulate prices for minute movements, they aren't at all interested in moving a stock/option in large directions one way or another.