Updated open interest data for all options contracts is now available across the Unusual Whales website. The $MRK 100c April flows, for example, are observing a decrease in open interest this morning. Given the volume on the 12th and the 13th being of similar size, it's highly likely that someone opened calls on the 12th and that same individual closed their contracts yesterday morning at the open. The larger player on the 11th is still holding their position. https://t.co/neXbC3sjOU