$10mil for a single trade - possible or glitch of the demo

Thinkorswim demo account.

04.12.08 03:08:22
SOLD -1 DBL DIAG SPY 100 (Quarterlys) MAR5 09/DEC5 08 65/93/90/71 CALL/PUT/CALL/PUT @100020.36

04.12.08 03:14:35
BOT +1 DBL DIAG SPY 100 (Quarterlys) MAR5 09/DEC5 08 65/93/90/71 CALL/PUT/CALL/PUT @33.08

$10mil... What was that?
 
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