“15,000 @ 213, 210, 209 & 205p on the Bid = 60,000
2 x 30,000 @ 227, 231 & 235p (180,000) 40,000 @ 245p, 12,000 @ 249p and 50,000 @ 250 & 260 on the Ask = 332,000”
The above weights that sit on the Bid and Ask have not arrived accidently or automatically, but have been purposely placed there by human interaction
The humans that have placed the weights on the Book have a reason for placing them on the Book, and looking round at several other Oil Stocks there are similar Bid Ask weight balances on their Books, some lighter than others some heavier.
IMO there can be several reasons for light to heavier Bid Ask weights being on the Books
a) to ensure that the Stocks follow the general FTSE Market trend
b) to push a Stock in a direction that enables Shares to be gained or Sold.
c) to cause Buy Liquidity or cause Sell Liquidity.
d) to cause traders to Sell or Buy a Stock
e) to signal the Liquidity Suppliers to Buy or Supply
Spread 214.5----215.5 . . . Mid 215p