Back-and-fill definitions

Price action, for a stock or other financial instrument, that isn’t indicative of a substantial trend; prices remain in a narrow range. Prices rise, but then fall back, filling in the space on a price chart inside a larger price movement.
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(nautical) To manage the sails of a ship so that the wind strikes them alternately in front and behind, in order to keep the ship in the middle of a river or channel while the current or tide carries the vessel against the wind.
verb
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(figuratively) To take opposite positions alternately; to assert and deny.
verb
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