Reddit user ccott235 has a nice little graph right now showing what happens to the community market right now on days where Headliners packs are released.
It’s a cool chart because it not only shows off when prices peak, it also shows how much Headliners impact the market, and for how long. In short, it causes prices to dip as folks sell off to buy packs, and then the market recovers hours later. This should not come as a big surprise to long-term community market flippers, but it’s still nice to get a visualization of it.
Scope it out and use it to your advantage if you want to keep flipping cards for Stubs. It really does pay to buy and sell and very specific times of day.