How to flip Nature impling jar in OSRS

Flipping Nature impling jar on the Old School RuneScape Grand Exchange currently makes about -49 gp profit per item after the 2% GE tax: buy near 5,500 gp (the instant-sell price) and re-list near 5,562 gp (the instant-buy price).

• Buy at (instant-sell): 5,500 gp
• Sell at (instant-buy): 5,562 gp
• Margin after 2% tax: -49 gp (-0.89% ROI)
• Buy limit per 4 hours: 18,000
• 24h volume: 20,636 (very liquid)
• Max profit per limit cycle: -882,000 gp on 99,000,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 5,500 gp (the current instant-sell price).
2. Wait for the fill. Nature impling jar is very liquid right now, so offers usually fill within minutes to a quarter hour.
3. Re-list at or just below 5,562 gp (the current instant-buy price).
4. The GE takes 111 gp tax (2%) per item when it sells, leaving -49 gp profit each.
5. Repeat up to the buy limit (18,000 per 4 hours), a full cycle is -882,000 gp on 99,000,000 gp of capital.

Margins move constantly. Re-check the live Nature impling jar numbers and price chart on GrandExchange.com right before committing.