How to flip Purple partyhat in OSRS

Flipping Purple partyhat on the Old School RuneScape Grand Exchange currently makes about 2,278 gp profit per item after the 2% GE tax: buy near 21,242 gp (the instant-sell price) and re-list near 23,999 gp (the instant-buy price).

• Buy at (instant-sell): 21,242 gp
• Sell at (instant-buy): 23,999 gp
• Margin after 2% tax: 2,278 gp (10.72% ROI)
• Buy limit per 4 hours: 5
• 24h volume: 431 (moderately traded)
• Max profit per limit cycle: 11,390 gp on 106,210 gp of capital

The flip, step by step

1. Place a buy offer at or just above 21,242 gp (the current instant-sell price).
2. Wait for the fill. Purple partyhat is moderately traded right now, so fills can take an hour or more, patience pays here.
3. Re-list at or just below 23,999 gp (the current instant-buy price).
4. The GE takes 479 gp tax (2%) per item when it sells, leaving 2,278 gp profit each.
5. Repeat up to the buy limit (5 per 4 hours), a full cycle is 11,390 gp on 106,210 gp of capital.

Margins move constantly. Re-check the live Purple partyhat numbers and price chart on GrandExchange.com right before committing.