How to flip Adamant seeds in OSRS

Flipping Adamant seeds on the Old School RuneScape Grand Exchange currently makes about 8 gp profit per item after the 2% GE tax: buy near 90 gp (the instant-sell price) and re-list near 100 gp (the instant-buy price).

• Buy at (instant-sell): 90 gp
• Sell at (instant-buy): 100 gp
• Margin after 2% tax: 8 gp (8.89% ROI)
• Buy limit per 4 hours: 18,000
• 24h volume: 497,785 (extremely liquid)
• Max profit per limit cycle: 144,000 gp on 1,620,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 90 gp (the current instant-sell price).
2. Wait for the fill. Adamant seeds is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 100 gp (the current instant-buy price).
4. The GE takes 2 gp tax (2%) per item when it sells, leaving 8 gp profit each.
5. Repeat up to the buy limit (18,000 per 4 hours), a full cycle is 144,000 gp on 1,620,000 gp of capital.

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