How to flip Dragon mace in OSRS

Flipping Dragon mace on the Old School RuneScape Grand Exchange currently makes about -423 gp profit per item after the 2% GE tax: buy near 29,137 gp (the instant-sell price) and re-list near 29,300 gp (the instant-buy price).

• Buy at (instant-sell): 29,137 gp
• Sell at (instant-buy): 29,300 gp
• Margin after 2% tax: -423 gp (-1.45% ROI)
• Buy limit per 4 hours: 70
• 24h volume: 11,966 (very liquid)
• Max profit per limit cycle: -29,610 gp on 2,039,590 gp of capital

The flip, step by step

1. Place a buy offer at or just above 29,137 gp (the current instant-sell price).
2. Wait for the fill. Dragon mace is very liquid right now, so offers usually fill within minutes to a quarter hour.
3. Re-list at or just below 29,300 gp (the current instant-buy price).
4. The GE takes 586 gp tax (2%) per item when it sells, leaving -423 gp profit each.
5. Repeat up to the buy limit (70 per 4 hours), a full cycle is -29,610 gp on 2,039,590 gp of capital.

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