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Technology Stocks : Amazon.com, Inc. (AMZN) -- Ignore unavailable to you. Want to Upgrade?


To: M. Frank Greiffenstein who wrote (21320)10/12/1998 6:04:00 PM
From: umbro  Read Replies (2) | Respond to of 164684
 
Dcostone asks, Could the contrarian implications of a high put/call ratio reflect large increases in covered put writing?

That's the problem with using options volume and open interest
in general ... we're seeing all sorts of trasnactions lumped into
one statistic. The real answer is that we don't know who established
the positions, nor their objectives. Many of the brokerage
houses do, however. Schwab is rumored to track
the open interest of their customers. They can tell whether
the transaction is to open or close a position, whether it is
covered, naked, or a spread. Having access to those sorts of
statistics might tell a whole lot more about what is going on.

I don't believe very much in the put/call ratios, except possibly
at extreme levels. The "Max. Pain" calculation is interesting,
but the theory that it predicts the stock's closing price at
expiration is largely untested. I post those numbers
because they are easy to calculate, and _perhaps_ we'll
see a tradeable pattern emerge. I mainly follow the implied
volatilities.

Note: strictly speaking the situation where an investor sells
puts with the expectation that they may be assigned to him/her,
and that they will lower the cost basis of owning the stock, is
a "naked" put sale (or a "fully colaterlized" put, if the money
is there to buy the assigned stock). A "covered put" is a put
that is sold against a short position in the stock. If I'm
short 500 AMZN shares, and sell 5 Nov. 90 puts ... those
puts are "covered" by my short shares. Technically, covered
puts are riskier than covered calls, because you don't own
the shares that you shorted, you borrowed them. The nightmare
scenario is that your short shares are called, _and_
the market gaps down at the open -- you are no longer be
covered.