Nikkei average futures and options seen settling at 16,639.11 -sources
TOKYO, June 10 (Reuters) - Nikkei futures and options contracts expiring in June were forecast to settle at 16,639.11, market participants said on Friday, citing estimates by brokerages.
The closely watched settlement price, known in Japan as the special quotation, or "SQ", is calculated from the opening prices of the 225 shares in the Nikkei average on the second Friday of every month.
It is calculated monthly for options and every three months for futures. The official settlement price will be announced after the market closes on Friday. (Reporting by Ayai Tomisawa; Editing by Chang-Ran Kim)
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