https://cyberian.digital/wp-content/uploads/2020/01/Cyberian_Off_Exchange_Liquidity_Final.pdf Despite their expanding popularity for both crypto and equities, there is a trade-off that comes with using off-exchanges which investors must consider. The lack of transparency that is associated with these private platforms is often cited as a potential problem because it is perceived to affect the ability to get the best price. In his bestseller “Flash Boys: A Wall Street Revolt” author Michael Lewis lays out some of the predatory tactics used by HFTs to front-run large block trades performed in off-exchanges.