How the Overstock shelf works
Some shops have an Overstock shelf pinned at the top: a row of common items selling at the normal price.
Where these come from
Every so often someone buys out a common item from a restock shop and relists it in their own shop for ten or twenty times what it's worth. The item isn't rare. They just drained the shop, so for a while theirs is the only one for sale.
The Overstock shelf puts our own copies back out at the normal price, so nobody has to pay the markup. We keep restocking it until the buyout collapses on its own.
Buy them, then sell them
You can pull up to 50 of a single Overstock item a day. Buy a stack here at the normal price, list them in your own shop a little higher, and pocket the difference.
Once a day you can run the autopricer on your shop to drop everything to the going rate in one click. As people buy and relist, the price out in the shops drifts back to normal.
Don't just fragmentize them
It's tempting to buy a stack and feed it straight to the Fragmentizer or the Recycle Beast for points. Right now that's a bad trade.
While an item is on the shelf, and for a few days after it leaves, it's over-circulating. The Fragmentizer barely gets any crystal out of one, and the Recycle Beast won't take it at all until it settles down. Resell them in a shop instead. That's where the profit is.
They don't stick around
Once enough have sold and the price out in the shops comes back to normal, the item rolls off the shelf, usually within a day. If someone corners it again later, it comes back.
Only common items show up here.
Quests still work
Overstock items show up in shop search like anything else. If a quest asks for one, you can find and buy it the usual way.