Facilitation

Facilitation is when a broker or dealer steps in to help a large trade get done by taking the other side of it, at least temporarily. If a big institution wants to sell a huge block of shares all at once, dumping that block straight onto the open market could crash the price before the seller gets a fair execution. So instead, a dealer will "facilitate" the trade by buying the block directly from the institution, often at a negotiated price, and then work the position off gradually in the open market over time.

The dealer providing this service is taking on real risk. They now own a large chunk of stock (or are short one) that they didn't want for its own sake, they wanted the commission and the trading relationship. To manage that risk while they unwind the position, they may use other instruments, most commonly listed options, to hedge part of the exposure. For example, a dealer who just bought a large block of shares might buy put options or sell call options against it to cushion against the stock falling before they can sell it off.

The nuance beginners miss is that facilitation is not the same as ordinary market making on a small scale. Market makers post bids and offers all day for routine order flow. Facilitation specifically refers to handling an unusually large, often privately negotiated order, where the size itself is the problem being solved. It's a service for institutional-sized trades, not something a retail trader will typically request or need.

Retail traders mostly encounter the word secondhand, when reading about how a big block trade moved through the market with unusual price behavior, or in the context of options being used to hedge such a trade. It's a background mechanic of institutional trading rather than something you'll click a button to do in a retail brokerage app.