Buy to Open

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Buy to Open

Informal for opening a position, especially in options. See also: Buy to cover, Buy to close.
References in periodicals archive ?
and I notice today that open interest is more than 164,000 today, so we can see that buy-to-open or sell-to-open deals predominated.
However, most of the activity was of the buy-to-open variety.
8% of other such ratios during the past year, suggesting that the stock's buy-to-open option activity on the ISE has rarely been more biased toward puts.
The at-the-money option - which assumes front-month status after the closing bell today - saw open interest climb from 5,948 to 10,932 overnight, suggesting most of the activity was of the buy-to-open variety.
Now that all of yesterday's activity has been netted up, I see that open interest increased by 4,701 contracts to 70,317 to buy-to-open and/or sell-to-open predominated.
49, as buy-to-open put volume has more than quadrupled comparable call volume during the past two weeks.
51, as buy-to-open put volume has more than tripled comparable call volume during the past two weeks.