How to flip Old school bond in OSRS

Flipping Old school bond on the Old School RuneScape Grand Exchange currently makes about 988 gp profit per item after the 2% GE tax: buy near 12,444,444 gp (the instant-sell price) and re-list near 12,699,420 gp (the instant-buy price).

• Buy at (instant-sell): 12,444,444 gp
• Sell at (instant-buy): 12,699,420 gp
• Margin after 2% tax: 988 gp (0.01% ROI)
• Buy limit per 4 hours: 100
• 24h volume: 10,618 (very liquid)
• Max profit per limit cycle: 98,800 gp on 1,244,444,400 gp of capital

The flip, step by step

1. Place a buy offer at or just above 12,444,444 gp (the current instant-sell price).
2. Wait for the fill. Old school bond is very liquid right now, so offers usually fill within minutes to a quarter hour.
3. Re-list at or just below 12,699,420 gp (the current instant-buy price).
4. The GE takes 253,988 gp tax (2%) per item when it sells, leaving 988 gp profit each.
5. Repeat up to the buy limit (100 per 4 hours), a full cycle is 98,800 gp on 1,244,444,400 gp of capital.

Margins move constantly. Re-check the live Old school bond numbers and price chart on GrandExchange.com right before committing.