RE: Io9 Oct 2019 09:57
Someone else has stated
"Technically, a CFD is a derivative priced off the underlying share, so as others have already stated, movement in the share price will impact the leveraged price of the CFD.
However, CFDs are reportable holdings in many markets - positions have to be disclosed so that significant holdings can be monitored by the regulators and everybody else for the purposes of calculating positions in any potential takeover bid. If there is a substantial amount of open interest in a CFD, then that can have an impact on the stock price, because it will affect the technical characteristics of the stock, changing the supply and demand characteristics.
For example, if a company has 100m shares, but there is long CFD interest in a further 20m shares, then the market may react to that by pushing up the price of the stock to reflect the increased demand. Similarly, if there was significant short interest, then the price could be depressed as a result - analysts would be looking at why there was negative sentiment on the stock".