How to flip Mystic water staff in OSRS

Flipping Mystic water staff on the Old School RuneScape Grand Exchange currently makes about 152 gp profit per item after the 2% GE tax: buy near 24,828 gp (the instant-sell price) and re-list near 25,489 gp (the instant-buy price).

• Buy at (instant-sell): 24,828 gp
• Sell at (instant-buy): 25,489 gp
• Margin after 2% tax: 152 gp (0.61% ROI)
• Buy limit per 4 hours: 18,000
• 24h volume: 8,835 (liquid)
• Max profit per limit cycle: 2,736,000 gp on 446,904,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 24,828 gp (the current instant-sell price).
2. Wait for the fill. Mystic water staff is liquid right now, so expect fills within the hour at reasonable prices.
3. Re-list at or just below 25,489 gp (the current instant-buy price).
4. The GE takes 509 gp tax (2%) per item when it sells, leaving 152 gp profit each.
5. Repeat up to the buy limit (18,000 per 4 hours), a full cycle is 2,736,000 gp on 446,904,000 gp of capital.

Margins move constantly. Re-check the live Mystic water staff numbers and price chart on GrandExchange.com right before committing.