How to flip Soulflame horn in OSRS

Flipping Soulflame horn on the Old School RuneScape Grand Exchange currently makes about -71,062 gp profit per item after the 2% GE tax: buy near 3,500,000 gp (the instant-sell price) and re-list near 3,498,916 gp (the instant-buy price).

• Buy at (instant-sell): 3,500,000 gp
• Sell at (instant-buy): 3,498,916 gp
• Margin after 2% tax: -71,062 gp (-2.03% ROI)
• Buy limit per 4 hours: 5
• 24h volume: 546 (moderately traded)
• Max profit per limit cycle: -355,310 gp on 17,500,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 3,500,000 gp (the current instant-sell price).
2. Wait for the fill. Soulflame horn is moderately traded right now, so fills can take an hour or more, patience pays here.
3. Re-list at or just below 3,498,916 gp (the current instant-buy price).
4. The GE takes 69,978 gp tax (2%) per item when it sells, leaving -71,062 gp profit each.
5. Repeat up to the buy limit (5 per 4 hours), a full cycle is -355,310 gp on 17,500,000 gp of capital.

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