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There are actually two SPY indices-- one from CME and one from AMEX -- the
CME is identical to the SPX and the SPY produced by AMEX is an index of the
ADR shares that are traded on AMEX. The value of the AMEX Spy (known as
SPYders) is approximately 10% of the CME's SPY and the SPX.
For example, today's Highs & Lows are as follows:
SPX: 1102.54 1084.72
SPY(AMEX): 110.59 108.40
___________________________________
At 05:46 PM 8/7/98 -0700, you wrote:
>Dear Group,
>
>My understanding is as follows:
>
>SPY, produced by the Chicago Mercantile Exchange, is the cash index on
which the
>CME S&P 500 futures contracts (nearby is currently SPU) are based.
>
>SPX, produced by the Chicago Board of Options Exchange, is the cash index on
>which the CBOE S&P 500 options contracts (SPX calls and puts) are based.
>
>OEX, produced by the Chicago Board of Options Exchange, is the cash index on
>which the CBOE S&P 100 options contracts (OEX calls and puts) are based.
>
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